Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 39.58 41.74 47.70 55.64 64.69 70.97 74.33 72.95 68.58 58.13 48.51 41.89 1952 41.37 43.78 48.81 57.06 66.58 72.96 75.65 73.08 65.60 57.04 47.78 43.41 1953 41.78 45.15 50.00 58.69 66.72 73.57 75.25 73.38 67.68 58.58 49.63 42.43 1954 41.24 43.41 51.01 56.47 65.09 70.11 74.59 73.68 68.07 57.93 46.92 39.10 1955 37.61 41.91 50.07 58.75 64.63 70.59 73.73 73.93 67.00 56.88 45.99 39.17 1956 38.43 42.44 48.39 55.98 64.41 71.42 74.34 72.70 67.02 57.52 51.56 43.77 1957 43.13 42.60 50.84 58.27 67.00 72.21 74.46 73.18 66.18 58.12 48.83 42.04 1958 36.80 37.18 44.66 54.93 64.42 71.14 74.54 73.47 67.28 59.80 48.91 41.71 1959 38.23 42.14 49.61 58.52 67.39 72.96 75.86 74.69 69.16 58.79 49.68 42.93 1960 40.24 38.09 45.11 53.48 65.87 70.80 75.41 74.21 68.66 59.22 47.74 39.17 1961 37.10 42.92 49.32 55.44 61.66 69.12 73.50 73.83 68.22 60.38 49.32 42.22 1962 38.79 40.79 46.82 56.22 65.48 71.56 73.05 70.91 66.40 57.15 47.47 38.91 1963 34.97 40.16 48.73 58.60 65.57 70.76 74.09 72.02 66.76 58.25 46.70 39.41 1964 35.56 41.00 47.33 56.95 65.76 71.70 73.76 71.39 63.96 56.80 48.17 43.04 1965 38.81 39.95 46.58 57.14 66.15 71.95 73.69 73.49 67.21 58.53 49.48 41.40 1966 37.23 38.88 46.06 55.40 63.39 71.54 74.34 72.38 65.03 56.63 47.34 42.14 1967 37.75 41.45 47.85 56.08 63.58 68.29 72.43 69.92 63.64 54.19 47.15 39.85 1968 36.23 39.27 47.46 57.37 64.63 70.73 74.82 72.56 66.30 57.23 46.69 38.35 1969 34.67 37.90 46.45 55.71 64.89 70.41 71.90 69.25 62.71 54.94 46.13 38.79 1970 36.47 39.26 48.01 57.14 66.49 72.25 74.47 73.94 68.15 59.31 49.20 41.18 1971 38.29 39.92 47.28 55.37 65.21 70.90 73.92 72.07 68.44 60.15 52.87 45.17 1972 41.94 42.27 47.96 56.50 63.11 68.71 71.86 72.34 65.72 56.54 47.99 42.49 1973 40.06 42.54 48.26 56.35 63.89 70.51 74.42 73.53 68.30 60.80 50.61 46.35 1974 42.90 46.96 51.41 59.61 65.27 70.00 72.45 71.40 65.10 56.51 47.92 42.95 1975 40.96 42.62 47.73 56.37 65.27 71.08 73.71 72.28 67.69 59.30 49.64 40.97 1976 38.86 43.23 51.53 57.19 63.36 68.06 71.53 70.15 63.08 52.90 42.67 33.33 1977 31.90 37.95 49.60 58.75 64.13 70.57 74.02 74.40 66.33 57.40 46.57 38.12 1978 32.11 34.75 44.29 54.81 63.55 69.03 73.28 73.34 67.64 59.53 49.94 42.44 1979 36.08 39.07 46.80 57.26 63.25 68.57 71.97 71.34 65.46 57.48 48.94 42.77 1980 37.85 38.78 45.22 55.31 64.35 71.73 75.97 76.70 69.64 59.66 49.56 42.22 1981 39.18 40.16 48.94 57.23 67.34 71.83 74.07 70.78 64.17 56.51 46.27 37.89 1982 35.47 39.78 48.01 57.07 64.65 71.31 72.29 70.87 65.11 57.82 50.15 42.86 1983 39.02 40.71 46.58 54.37 61.95 69.62 75.05 74.40 68.58 59.37 48.50 40.45 1984 38.69 41.41 47.78 53.82 63.71 69.64 72.91 69.06 65.65 55.66 50.64 40.63 1985 39.37 40.57 50.55 59.44 66.42 70.36 71.86 70.20 65.60 60.30 50.24 42.05 1986 36.81 40.76 48.57 56.70 65.37 71.91 73.84 71.43 64.35 56.75 47.45 39.53 1987 36.18 38.84 45.58 55.17 64.23 72.28 76.12 75.05 66.60 57.53 48.08 40.33 1988 35.63 36.60 44.50 52.37 60.66 67.44 72.33 70.22 61.65 51.31 42.85 40.22 1989 38.45 41.44 45.86 52.74 61.17 67.91 71.41 69.46 63.31 56.01 43.59 39.50 1990 38.67 46.98 52.16 58.37 65.52 71.54 74.76 72.84 67.12 59.73 50.75 43.40 1991 40.17 43.24 50.73 58.92 66.76 73.28 75.89 74.60 67.64 58.54 50.15 44.11 1992 42.77 43.53 49.06 54.82 62.50 69.06 72.81 72.28 64.93 56.80 47.71 43.10 1993 39.65 40.81 45.57 54.87 64.35 72.24 76.01 75.76 69.03 59.89 48.96 39.92 1994 36.51 40.33 50.74 58.36 66.83 71.84 75.81 73.45 66.57 59.31 51.49 45.41 1995 40.48 42.74 48.88 57.95 64.94 71.34 75.61 74.24 68.28 57.00 46.25 37.44 1996 35.75 38.37 46.87 55.59 65.47 70.60 73.05 71.15 65.88 55.64 46.84 39.35 1997 39.45 42.53 48.27 54.35 61.37 69.01 73.26 72.29 65.68 55.86 46.72 40.06 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 11 9 0.926 0.923 0.908 0.906 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.0 38.7 39.4 36.8 36.2 35.6 38.5 38.7 40.2 42.8 39.7 36.5 40.5 35.8 39.5 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 S- 10 -1.7 0.2 -0.9 -2.1 -2.2 -2.5 -2.2 -2.2 -3.3 0.0 -0.7 -1.0 -1.0 -1.5 -2.3 S- 13 -4.3 -3.1 -4.1 -5.8 -5.3 -5.3 -5.8 -6.0 -5.7 -3.2 -3.3 -4.6 -3.2 -5.1 -5.3 S- 11 0.4 3.2 2.8 1.0 -0.9 -0.2 -0.2 0.6 -0.3 2.5 1.2 1.2 2.1 0.6 -0.1 S- 9 3.8 7.3 6.5 5.3 3.8 3.5 3.9 5.0 3.8 7.0 5.8 6.2 6.3 5.1 4.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.00-0.53-0.68-1.21-1.29-1.40 38.91 39.40-0.49 38.51 40.07-1.57 -1.08 13 -4.32-4.08-4.11-4.46-4.61-4.33 42.99-4.08 43.16-4.65 -0.58 11 1.39 1.61 1.56 1.49 1.14 1.03 37.27 1.63 37.59 0.92 -0.71 9 5.89 6.07 6.37 6.04 5.36 5.47 32.62 6.29 33.35 5.16 -1.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.52 2.48 2.26 2.49 0.91 1.94 1.82 1.06 1.17 13 2.54 2.78 0.81 1.66 1.16 1.43 11 2.77 3.08 0.73 1.75 1.11 1.51 9 2.89 2.99 0.76 1.85 1.05 1.38 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 40.07)(1.06) + 38.51 0.96(F 13 - 43.16)(1.16) + 38.51 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 11 0.943 0.936 0.920 0.906 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.7 41.4 40.6 40.8 38.8 36.6 41.4 47.0 43.2 43.5 40.8 40.3 42.7 38.4 42.5 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3 S- 10 -1.1 0.8 -0.4 -1.8 -1.4 -3.2 -2.1 -1.2 -1.7 -0.1 -0.8 -0.4 -0.2 -1.0 -1.7 S- 13 -3.7 -3.7 -4.1 -5.9 -5.1 -6.5 -6.2 -4.4 -4.8 -3.6 -4.0 -5.0 -3.3 -5.0 -6.4 S- 12 -6.4 -6.3 -6.9 -8.8 -7.6 -9.2 -9.4 -7.5 -7.9 -6.2 -7.6 -8.7 -6.1 -8.5 -9.4 S- 11 1.1 2.6 3.0 0.4 -1.0 -1.2 -1.7 1.5 0.9 1.8 0.8 1.6 2.0 0.9 -0.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.61-0.48-0.21-0.61-0.96-0.85 41.55 41.89-0.34 41.26 42.35-1.09 -0.75 13 -4.41-4.37-3.96-4.43-4.76-4.57 45.76-4.21 46.03-4.77 -0.56 12 -7.30-7.03-6.80-7.51-7.56-7.78 48.54-6.99 49.03-7.77 -0.78 11 1.30 1.45 1.60 1.55 0.79 1.05 40.04 1.51 40.46 0.80 -0.71 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.44 2.45 2.04 2.14 0.95 2.36 2.25 1.05 1.11 13 2.57 2.47 0.82 2.21 1.07 1.30 12 2.68 2.35 0.86 2.27 1.04 1.21 11 2.71 2.61 0.78 2.27 1.04 1.33 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 42.35)(1.05) + 41.26 0.97(F 13 - 46.03)(1.07) + 41.26 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.924 0.897 0.895 0.862 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.6 47.8 50.5 48.6 45.6 44.5 45.9 52.2 50.7 49.1 45.6 50.7 48.9 46.9 48.3 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 S- 10 -0.7 0.2 0.1 -1.0 -0.8 -3.0 -2.1 -0.1 -0.5 0.0 -0.6 0.5 0.3 0.5 -1.1 S- 12 -5.8 -6.2 -5.4 -7.9 -6.2 -8.7 -8.9 -6.0 -6.7 -5.7 -6.2 -6.0 -6.1 -5.8 -8.3 S- 13 -3.5 -3.5 -3.2 -5.7 -4.4 -6.6 -6.4 -3.3 -4.1 -3.4 -3.5 -3.2 -3.7 -3.2 -5.4 S- 9 4.7 6.3 6.9 4.5 3.7 2.6 3.7 6.0 5.5 5.9 5.7 7.2 6.7 7.0 4.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.14-0.25 0.28 0.08-0.67-0.14 48.33 48.40-0.06 48.11 48.67-0.56 -0.50 12 -6.25-6.07-6.03-6.06-6.73-6.40 54.41-6.08 54.77-6.66 -0.58 13 -3.91-3.86-3.74-3.71-4.42-3.78 52.13-3.79 52.32-4.20 -0.41 9 5.92 6.09 6.07 6.25 5.13 6.13 42.19 6.14 42.70 5.41 -0.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.98 1.97 1.88 1.95 0.96 2.20 1.80 1.23 1.28 12 1.96 1.90 0.99 2.02 1.09 1.10 13 1.96 2.04 0.92 1.92 1.15 1.25 9 2.04 2.10 0.89 1.69 1.30 1.46 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.96(F 10 - 48.67)(1.23) + 48.11 0.95(F 12 - 54.77)(1.09) + 48.11 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 12 11 0.838 0.837 0.815 0.772 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 54.4 53.8 59.4 56.7 55.2 52.4 52.7 58.4 58.9 54.8 54.9 58.4 58.0 55.6 54.3 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 S- 13 -3.7 -4.2 -2.4 -4.5 -4.2 -6.6 -5.9 -2.6 -3.9 -3.1 -3.0 -2.1 -3.5 -2.9 -4.7 S- 10 -1.1 -0.5 0.3 -1.0 -0.8 -3.3 -2.5 0.5 -1.0 -0.3 -0.8 1.1 0.7 0.7 -0.7 S- 12 -5.7 -6.8 -4.2 -6.2 -5.4 -8.3 -8.1 -4.9 -6.2 -5.1 -5.3 -4.3 -5.6 -5.2 -7.4 S- 11 1.9 1.7 3.4 1.2 0.1 -1.4 -1.0 3.0 1.2 2.0 2.5 4.4 2.4 2.8 1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.40-3.48-3.17-3.06-3.93-3.32 56.81 60.19-3.38 55.86 59.67-3.81 -0.43 10 0.00-0.14 0.53 0.25-0.64-0.04 56.76 0.04 56.44-0.58 -0.63 12 -5.30-5.21-4.89-5.07-5.84-5.60 61.92-5.11 61.78-5.92 -0.81 11 2.06 2.20 1.97 2.44 1.40 2.36 54.68 2.13 54.16 1.70 -0.43 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.73 1.53 1.52 1.59 0.96 2.21 1.57 1.40 1.47 10 1.52 1.54 0.99 1.62 1.36 1.38 12 1.46 1.46 1.04 1.58 1.40 1.34 11 1.54 1.66 0.92 1.58 1.40 1.53 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.92(F 13 - 59.67)(1.40) + 55.86 0.91(F 10 - 56.44)(1.36) + 55.86 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 12 10 11 0.825 0.824 0.817 0.814 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.0 63.7 66.4 65.4 64.2 60.7 61.2 65.5 66.8 62.5 64.3 66.8 64.9 65.5 61.4 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 S- 13 -3.5 -3.0 -2.6 -4.6 -3.9 -5.9 -5.4 -2.3 -3.2 -2.7 -3.1 -1.5 -3.2 -2.6 -2.5 S- 12 -5.1 -5.1 -4.3 -5.6 -4.8 -7.2 -7.8 -4.3 -5.2 -4.5 -4.5 -3.0 -5.2 -4.3 -4.8 S- 10 -1.2 -0.9 -0.3 -1.4 -1.2 -3.1 -3.4 0.5 -1.1 -0.2 -1.0 0.5 0.0 0.2 -0.4 S- 11 2.0 2.3 3.3 1.1 0.9 -0.7 0.6 3.4 1.7 2.3 2.5 4.1 2.6 2.9 2.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.13-3.42-2.81-2.99-3.64-2.68 65.43 68.64-3.21 64.08 67.41-3.32 -0.11 12 -4.59-4.48-4.10-4.63-5.22-4.52 69.77-4.34 69.13-5.05 -0.71 10 -0.36-0.42 0.22-0.27-1.01-0.31 65.60-0.17 64.96-0.87 -0.70 11 2.21 2.17 2.12 2.40 1.83 2.70 63.26 2.17 61.96 2.12 -0.05 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.64 1.50 1.36 1.36 1.00 2.02 1.66 1.22 1.22 12 1.33 1.16 1.17 1.56 1.30 1.11 10 1.42 1.39 0.98 1.58 1.28 1.31 11 1.51 1.45 0.94 1.64 1.23 1.31 Suggested regression eqns from two most closely related CDs ( 13 and 12): 0.91(F 13 - 67.41)(1.22) + 64.08 0.91(F 12 - 69.13)(1.30) + 64.08 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 10 13 9 0.825 0.810 0.799 0.760 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.6 69.6 70.4 71.9 72.3 67.4 67.9 71.5 73.3 69.1 72.2 71.8 71.3 70.6 69.0 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 S- 11 1.5 2.0 1.8 1.1 1.2 -0.5 0.7 2.9 2.3 2.3 1.9 3.8 2.6 1.5 2.6 S- 10 -1.7 -1.8 -1.4 -2.1 -1.7 -3.8 -3.9 -0.6 -1.5 -1.0 -1.6 -0.5 -0.9 -1.0 -0.7 S- 13 -4.0 -3.4 -3.5 -4.9 -3.6 -5.4 -5.0 -3.0 -2.6 -3.1 -3.9 -1.7 -3.0 -4.1 -2.5 S- 9 3.5 3.5 3.8 3.4 2.7 0.3 1.5 5.2 2.9 4.0 4.0 5.2 4.2 4.1 4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 2.01 1.91 2.36 2.02 1.46 2.43 71.45 69.39 2.06 70.54 68.69 1.85 -0.21 10 -1.05-0.87-0.45-1.06-1.84-1.02 72.15-0.69 72.15-1.61 -0.92 13 -3.22-3.40-2.62-3.14-3.90-2.97 74.61-3.15 74.11-3.58 -0.42 9 3.84 4.09 4.09 3.73 3.27 4.10 67.31 4.14 67.04 3.50 -0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.46 1.47 1.13 1.43 0.79 1.66 1.45 1.14 1.45 10 1.30 1.15 0.98 1.40 1.19 1.21 13 1.48 1.32 0.86 1.49 1.12 1.30 9 1.42 1.45 0.78 1.53 1.09 1.40 Suggested regression eqns from two most closely related CDs ( 11 and 10): 0.91(F 11 - 68.69)(1.14) + 70.54 0.90(F 10 - 72.15)(1.19) + 70.54 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 11 13 9 0.744 0.694 0.681 0.671 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.1 72.9 71.9 73.8 76.1 72.3 71.4 74.8 75.9 72.8 76.0 75.8 75.6 73.1 73.3 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 S- 10 -1.1 -2.2 -2.5 -2.8 -1.4 -3.7 -4.5 -1.0 -0.9 -1.2 -1.2 -0.4 -0.9 -1.7 -0.8 S- 11 2.2 1.2 0.7 0.3 2.4 -0.2 -0.1 2.6 3.3 2.6 2.1 3.7 2.5 1.6 2.5 S- 13 -3.0 -3.6 -4.4 -5.4 -2.9 -5.1 -5.3 -3.4 -1.7 -3.0 -3.3 -1.2 -2.2 -3.8 -2.3 S- 9 3.6 2.4 2.7 2.8 3.4 0.2 0.6 4.5 3.9 4.3 3.9 4.6 3.2 3.3 4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.45-1.15-1.11-1.60-2.26-1.01 74.42 75.44-1.02 74.05 75.81-1.76 -0.74 11 1.88 1.82 2.25 1.87 1.07 2.63 72.39 2.03 72.21 1.83 -0.19 13 -3.20-3.33-2.70-3.17-4.11-2.49 77.48-3.06 77.42-3.38 -0.31 9 3.48 3.80 3.67 3.38 2.77 3.90 70.51 3.91 70.87 3.18 -0.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.32 1.07 0.80 0.93 0.86 1.59 1.08 1.47 1.72 11 1.21 1.17 0.68 1.06 1.49 2.19 13 1.24 1.16 0.69 1.16 1.37 1.99 9 1.17 1.06 0.75 1.25 1.27 1.69 Suggested regression eqns from two most closely related CDs ( 10 and 11): 0.86(F 10 - 75.81)(1.47) + 74.05 0.83(F 11 - 72.21)(1.49) + 74.05 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 11 12 0.823 0.773 0.739 0.735 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.4 69.1 70.2 71.4 75.1 70.2 69.5 72.8 74.6 72.3 75.8 73.4 74.2 71.2 72.3 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 S- 10 -1.0 -3.5 -3.3 -3.4 -1.2 -4.4 -4.6 -1.5 -0.8 -1.6 -0.6 -0.2 -0.9 -2.0 -1.2 S- 13 -2.8 -5.1 -4.3 -5.8 -2.6 -5.9 -5.5 -4.1 -1.6 -3.1 -2.6 -1.0 -2.3 -4.0 -3.1 S- 11 2.5 -0.1 0.5 -0.8 3.1 -1.2 -0.7 1.7 3.1 2.2 3.0 4.0 2.4 1.5 2.1 S- 12 -3.9 -6.7 -6.4 -7.2 -3.8 -7.5 -7.6 -5.4 -3.4 -5.5 -3.5 -2.9 -3.4 -5.6 -4.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.69-1.29-1.57-1.69-2.67-1.03 73.13 74.33-1.21 72.43 74.43-2.00 -0.79 13 -3.35-3.25-3.18-3.15-4.38-2.52 76.22-3.10 76.00-3.58 -0.48 11 1.65 1.67 1.80 1.83 0.65 2.60 71.32 1.81 70.88 1.55 -0.25 12 -4.69-4.17-4.54-4.52-5.90-4.15 77.28-4.15 77.61-5.18 -1.02 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.73 1.24 0.99 1.12 0.89 2.06 1.08 1.91 2.14 13 1.32 1.12 0.89 1.23 1.67 1.88 11 1.34 1.14 0.87 1.11 1.85 2.14 12 1.09 0.92 1.07 0.97 2.13 1.99 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.91(F 10 - 74.43)(1.91) + 72.43 0.88(F 13 - 76.00)(1.67) + 72.43 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 11 13 9 0.763 0.761 0.756 0.737 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.6 65.7 65.6 64.3 66.6 61.7 63.3 67.1 67.6 64.9 69.0 66.6 68.3 65.9 65.7 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 10 -0.4 -3.6 -3.2 -4.2 -0.7 -4.5 -4.8 -1.4 -0.8 -1.2 0.4 0.2 -0.8 -1.4 -1.4 S- 11 2.8 -0.6 0.0 -1.5 3.0 -1.4 -0.8 1.8 2.4 1.8 4.0 3.2 2.7 1.8 1.8 S- 13 -2.1 -5.4 -4.7 -6.1 -2.3 -6.6 -6.0 -4.0 -2.0 -3.0 -1.5 -1.3 -2.3 -2.8 -3.4 S- 9 4.9 1.3 1.9 1.1 4.7 0.3 0.7 4.0 4.2 3.9 5.8 5.3 4.1 3.8 4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.57-1.10-1.70-1.54-2.55-0.72 67.19 68.22-1.04 66.06 67.92-1.86 -0.82 11 1.59 1.73 1.50 1.90 0.57 2.54 65.38 1.80 64.65 1.41 -0.39 13 -3.35-3.17-3.43-3.09-4.42-2.32 70.25-3.06 69.62-3.56 -0.50 9 3.66 4.08 3.42 3.95 2.58 4.51 63.15 4.03 62.70 3.36 -0.67 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.85 1.42 1.29 1.31 0.98 1.93 1.07 1.81 1.85 11 1.43 1.27 1.02 1.04 1.86 1.83 13 1.44 1.41 0.92 1.10 1.76 1.92 9 1.50 1.33 0.97 1.10 1.76 1.82 Suggested regression eqns from two most closely related CDs ( 10 and 11): 0.87(F 10 - 67.92)(1.81) + 66.06 0.87(F 11 - 64.65)(1.86) + 66.06 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 11 0.807 0.797 0.782 0.777 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.4 55.7 60.3 56.8 57.5 51.3 56.0 59.7 58.5 56.8 59.9 59.3 57.0 55.6 55.9 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 S- 10 -0.1 -3.9 -2.8 -3.9 -0.9 -5.1 -3.7 -1.0 -0.7 -1.8 -0.2 -0.1 -1.2 -1.6 -2.1 S- 9 5.7 1.7 2.8 1.9 4.8 0.2 2.6 4.6 5.1 3.8 6.2 5.1 5.0 4.5 4.4 S- 13 -1.6 -5.9 -4.7 -6.3 -2.3 -7.5 -5.1 -3.1 -1.9 -3.4 -1.6 -1.5 -2.7 -3.3 -3.7 S- 11 3.5 -0.9 0.3 -1.8 3.1 -2.3 0.7 2.5 2.6 1.7 4.0 3.1 2.9 1.6 1.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.50-1.18-1.47-1.32-2.32-1.10 58.21 59.27-1.06 57.31 59.25-1.94 -0.88 9 4.21 4.58 3.97 4.54 3.28 4.88 53.73 4.48 53.41 3.90 -0.58 13 -3.36-3.24-3.37-3.13-4.24-2.60 61.38-3.17 60.96-3.64 -0.47 11 1.81 2.05 1.74 2.05 0.90 2.50 56.22 1.99 55.81 1.50 -0.49 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.93 1.52 1.02 0.78 1.30 2.27 1.55 1.47 1.13 9 1.66 0.90 1.13 1.63 1.39 1.23 13 1.52 0.79 1.29 1.60 1.41 1.10 11 1.62 0.81 1.26 1.72 1.32 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.90(F 10 - 59.25)(1.47) + 57.31 0.89(F 9 - 53.41)(1.39) + 57.31 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 10 9 38 0.872 0.869 0.868 0.858 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.5 50.6 50.2 47.5 48.1 42.8 43.6 50.8 50.2 47.7 49.0 51.5 46.3 46.8 46.7 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 11 3.2 0.2 1.0 -1.2 2.1 -1.1 0.8 1.6 3.0 2.4 3.3 2.6 2.4 1.0 2.1 S- 10 -0.2 -2.6 -2.3 -3.6 -0.9 -4.2 -2.9 -2.4 -0.6 -1.3 -0.5 -0.6 -1.3 -1.8 -1.8 S- 9 6.3 3.0 4.4 3.0 4.6 1.6 4.2 4.0 5.7 4.9 6.1 5.1 5.2 4.2 4.5 S- 38 4.2 1.2 2.8 1.3 2.6 -0.9 2.3 2.6 3.5 3.0 4.8 2.8 3.7 1.7 2.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 1.94 2.29 1.92 2.25 0.99 2.39 48.45 46.20 2.24 48.01 46.46 1.55 -0.69 10 -1.31-0.90-1.19-1.14-2.13-1.13 49.29-0.84 49.82-1.81 -0.96 9 4.85 5.31 4.85 5.09 3.98 5.10 43.22 5.23 43.56 4.45 -0.78 38 2.77 3.13 2.76 3.04 1.92 3.12 45.35 3.09 45.48 2.54 -0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.09 2.00 1.37 1.44 0.95 2.45 2.26 1.08 1.14 10 1.96 1.43 0.96 2.11 1.16 1.21 9 2.15 1.54 0.89 2.26 1.09 1.22 38 2.17 1.48 0.93 2.20 1.11 1.20 Suggested regression eqns from two most closely related CDs ( 11 and 10): 0.93(F 11 - 46.46)(1.08) + 48.01 0.93(F 10 - 49.82)(1.16) + 48.01 Station#1856 BEDFORD , va 4055102 lat/lon 79.53 37.33 37M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 9 0.900 0.891 0.887 0.866 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.5 40.6 42.0 39.5 40.3 40.2 39.5 43.4 44.1 43.1 39.9 45.4 37.4 39.3 40.1 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 13 -2.7 -4.4 -4.5 -5.9 -4.0 -6.2 -5.4 -4.6 -2.4 -3.0 -3.3 -2.3 -4.4 -5.2 -4.8 S- 10 0.3 -1.9 -2.2 -3.0 -1.7 -3.2 -2.2 -2.6 -0.5 -1.2 -1.3 -1.0 -1.7 -2.4 -3.5 S- 11 3.2 1.8 1.9 -1.3 0.9 -0.9 1.4 0.4 3.2 1.8 2.4 2.6 0.9 0.1 0.4 S- 9 7.2 4.8 5.4 3.6 3.9 2.2 5.2 3.9 7.0 5.1 6.2 5.6 4.8 4.2 2.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.85-3.83-3.62-3.56-4.53-3.62 41.37 45.11-3.74 41.03 45.23-4.20 -0.46 10 -1.22-0.77-0.86-1.05-1.93-1.64 42.12-0.75 42.90-1.86 -1.12 11 1.78 2.09 1.95 2.23 0.96 1.64 39.26 2.11 39.78 1.25 -0.87 9 5.49 5.92 5.86 5.88 4.56 5.09 35.43 5.94 36.24 4.79 -1.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.36 2.24 1.68 1.95 0.86 2.06 1.65 1.25 1.45 10 2.36 1.90 0.89 1.95 1.06 1.19 11 2.43 2.14 0.79 1.87 1.10 1.40 9 2.64 2.20 0.77 2.10 0.98 1.28 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.95(F 13 - 45.23)(1.25) + 41.03 0.94(F 10 - 42.90)(1.06) + 41.03 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.66 40.88 46.75 55.43 64.79 71.85 75.46 74.56 69.35 58.47 48.38 41.29 1952 40.50 42.27 47.69 55.84 66.47 73.76 77.12 74.36 66.86 58.36 48.31 42.99 1953 40.80 43.65 48.95 58.03 67.09 75.02 77.24 76.63 70.89 62.03 51.68 42.71 1954 40.28 42.13 50.30 56.46 65.65 71.18 75.99 76.19 71.41 60.73 48.18 39.13 1955 37.16 41.61 49.91 59.55 66.37 73.05 76.01 75.69 68.71 58.63 46.95 38.93 1956 37.41 41.21 47.44 54.85 64.33 71.71 75.41 73.25 67.26 57.71 51.14 42.81 1957 40.89 40.45 48.95 57.68 66.92 73.08 75.80 74.70 66.60 57.83 48.08 41.24 1958 35.28 35.36 42.89 53.74 63.43 70.54 74.02 73.85 67.34 59.85 47.60 39.78 1959 35.61 40.35 48.43 58.09 67.30 73.27 76.39 75.29 69.63 58.96 49.09 41.82 1960 38.81 36.48 44.22 52.99 65.96 70.66 75.18 74.07 68.49 59.74 47.77 38.67 1961 35.14 40.41 47.21 54.31 61.71 69.93 74.42 74.97 69.44 61.25 49.31 40.68 1962 35.82 37.94 45.17 55.94 65.44 71.36 73.35 71.41 67.22 57.59 47.16 37.40 1963 32.78 38.17 47.21 57.85 65.52 71.60 75.44 73.40 67.80 59.58 47.69 39.97 1964 35.07 40.47 46.21 56.50 65.55 72.84 75.14 73.02 65.84 59.08 49.66 42.91 1965 37.48 38.52 44.88 56.03 65.40 72.61 74.15 74.33 67.75 59.13 49.50 41.28 1966 36.82 38.73 45.56 54.89 63.64 72.94 77.01 74.96 66.94 57.91 47.50 42.13 1967 36.99 40.11 46.29 54.55 63.35 68.55 73.26 71.32 65.47 55.92 47.47 38.90 1968 35.51 38.65 47.59 56.79 64.61 70.88 75.99 74.79 69.11 59.86 48.35 39.02 1969 34.61 37.20 46.11 56.01 66.20 72.14 74.69 72.96 66.97 57.97 46.91 37.28 1970 33.83 36.37 45.33 55.71 66.33 72.99 75.63 75.67 70.41 61.10 49.71 40.14 1971 36.69 37.77 45.81 54.12 64.37 70.75 74.56 73.67 69.46 60.82 52.39 44.25 1972 39.93 39.98 45.58 55.06 62.62 69.23 72.69 73.20 66.25 56.86 47.70 41.97 1973 38.97 41.72 47.77 56.25 64.43 71.46 76.19 75.37 69.71 61.04 49.71 43.86 1974 39.94 43.41 49.02 57.53 64.39 69.98 73.10 72.31 65.83 57.76 49.21 43.26 1975 40.05 40.81 45.46 54.41 63.97 70.71 73.70 71.67 67.49 59.40 49.81 39.96 1976 37.75 42.51 52.11 57.94 65.11 69.91 73.26 71.62 64.28 54.24 43.01 33.74 1977 31.77 38.21 50.07 59.78 65.80 72.50 75.69 76.21 67.87 58.25 46.07 37.16 1978 31.03 33.16 42.61 53.64 63.95 69.44 74.10 73.56 68.24 59.82 50.15 41.92 1979 34.43 37.04 45.11 56.91 63.75 69.78 73.41 72.59 66.07 57.80 49.01 42.34 1980 36.85 37.86 45.12 56.00 65.40 72.45 76.07 76.55 69.19 58.88 47.16 38.74 1981 36.56 38.86 48.82 56.41 66.60 71.49 74.58 72.20 65.35 57.49 46.55 37.21 1982 33.76 37.12 45.95 55.66 64.18 71.85 73.02 71.96 65.51 58.35 50.21 42.63 1983 38.56 39.85 45.47 53.60 62.02 70.46 75.06 74.08 66.93 57.37 45.93 38.08 1984 36.59 39.03 46.33 53.16 64.15 70.25 73.60 70.96 68.11 59.01 52.48 41.38 1985 38.74 39.57 50.06 59.20 66.40 70.68 72.90 72.57 67.51 61.07 49.81 41.95 1986 36.72 41.24 48.68 57.88 66.48 73.25 75.37 73.28 67.09 58.44 48.29 39.38 1987 36.63 39.97 46.58 55.96 65.04 74.09 77.74 75.79 66.89 58.08 48.54 41.27 1988 36.96 39.18 46.88 55.45 64.07 71.61 76.51 74.19 65.84 56.36 47.26 43.85 1989 40.27 43.01 47.12 54.82 64.13 70.70 74.27 71.85 66.44 58.03 44.64 39.66 1990 38.78 46.84 50.99 56.67 63.75 70.47 74.01 72.62 66.73 59.59 51.11 44.14 1991 41.63 44.21 51.11 59.82 68.24 74.45 75.88 74.10 67.76 58.74 49.95 42.84 1992 40.44 41.01 47.12 53.67 61.54 68.66 72.42 71.98 64.30 55.61 45.99 40.31 1993 36.83 37.72 43.49 53.58 64.27 72.37 75.71 74.28 66.32 56.69 45.99 36.52 1994 33.30 36.44 47.79 55.41 65.21 70.08 73.33 71.41 65.38 59.63 51.83 45.61 1995 40.24 42.11 48.10 57.32 64.37 71.43 75.72 74.50 68.60 56.99 45.98 37.32 1996 35.39 37.75 45.63 54.48 65.52 71.25 74.91 72.58 66.86 56.28 47.25 39.62 1997 39.48 42.35 48.44 54.87 62.23 70.09 73.95 72.94 66.47 57.27 48.07 40.41 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.963 0.954 0.947 0.942 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.6 36.6 38.7 36.7 36.6 37.0 40.3 38.8 41.6 40.4 36.8 33.3 40.2 35.4 39.5 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3 S- 7 2.4 3.8 3.9 4.4 3.5 4.1 5.3 4.2 4.2 4.0 2.5 2.9 4.4 4.0 2.8 S- 10 -2.1 -1.9 -1.5 -2.2 -1.7 -1.2 -0.4 -2.1 -1.8 -2.3 -3.5 -4.2 -1.2 -1.8 -2.3 S- 9 3.4 5.2 5.9 5.2 4.2 4.8 5.8 5.1 5.3 4.7 2.9 3.0 6.1 4.8 4.0 S- 8 6.9 10.0 10.3 10.2 8.5 9.4 10.6 10.0 10.0 9.3 8.0 9.1 10.5 9.4 8.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 3.80 3.79 4.04 3.60 3.93 3.56 37.45 33.45 3.99 38.04 34.28 3.76 -0.23 10 -2.09-1.83-2.04-2.56-1.68-2.46 39.40-1.95 40.07-2.04 -0.09 9 4.79 4.77 5.02 4.68 4.97 4.40 32.62 4.83 33.35 4.69 -0.14 8 9.52 9.35 9.64 9.72 9.59 9.20 27.83 9.62 28.68 9.36 -0.26 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.54 2.52 2.41 2.68 0.90 2.16 2.00 1.08 1.20 10 2.48 2.49 0.97 1.82 1.18 1.22 9 2.89 2.99 0.81 1.85 1.17 1.44 8 2.85 2.97 0.81 2.18 0.99 1.22 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.98(F 7 - 34.28)(1.08) + 38.04 0.98(F 10 - 40.07)(1.18) + 38.04 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.960 0.943 0.932 0.928 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.8 39.0 39.6 41.2 40.0 39.2 43.0 46.8 44.2 41.0 37.7 36.4 42.1 37.8 42.3 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6 S- 7 2.8 4.8 4.0 5.0 4.4 4.5 5.6 4.8 5.3 4.0 2.7 4.2 4.7 4.1 3.9 S- 10 -2.0 -1.6 -1.4 -1.3 -0.3 -0.7 -0.5 -1.4 -0.8 -2.6 -3.9 -4.3 -0.8 -1.7 -1.9 S- 9 3.8 5.2 6.1 5.4 4.6 5.2 4.8 4.8 6.2 4.0 2.5 3.3 6.1 4.9 4.5 S- 8 7.5 11.0 10.5 10.6 9.1 10.2 10.7 10.1 10.9 9.3 7.9 10.5 10.5 9.6 9.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.19 3.98 4.42 4.00 4.42 4.12 39.99 35.81 4.18 40.69 36.37 4.31 0.13 10 -1.82-1.88-1.71-2.17-1.22-2.27 41.89-1.90 42.35-1.66 0.23 9 4.81 4.80 4.93 4.75 5.01 4.49 35.21 4.78 35.92 4.76 -0.02 8 9.90 9.5410.0410.0510.03 9.79 30.17 9.83 30.80 9.88 0.06 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.55 2.26 2.19 1.94 1.13 2.63 2.33 1.13 1.00 10 2.45 2.14 1.03 2.25 1.17 1.14 9 2.79 2.46 0.89 2.36 1.11 1.25 8 2.54 2.13 1.03 2.53 1.04 1.01 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.98(F 7 - 36.37)(1.13) + 40.69 0.97(F 10 - 42.35)(1.17) + 40.69 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.953 0.951 0.923 0.898 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.5 46.3 50.1 48.7 46.6 46.9 47.1 51.0 51.1 47.1 43.5 47.8 48.1 45.6 48.4 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 -1.8 -1.3 -0.3 -0.9 0.2 -0.6 -0.9 -1.3 -0.1 -2.0 -2.7 -2.4 -0.5 -0.8 -0.9 S- 7 2.7 4.3 4.8 5.6 4.0 4.3 4.9 4.5 5.2 4.5 3.4 4.8 5.5 4.4 4.0 S- 9 3.6 4.9 6.4 4.6 4.7 4.9 5.0 4.8 5.9 3.9 3.6 4.2 5.9 5.8 5.1 S- 13 -4.6 -5.0 -3.7 -5.6 -3.4 -4.2 -5.1 -4.4 -3.7 -5.4 -5.5 -6.2 -4.5 -4.4 -5.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.10-1.32-1.02-1.06-0.84-1.34 47.08 48.40-1.31 47.59 48.67-1.09 0.23 7 4.44 4.14 4.64 4.54 4.38 4.52 42.80 4.28 43.14 4.45 0.17 9 4.96 5.02 4.76 5.11 4.97 4.92 42.19 4.89 42.70 4.89 0.00 13 -4.87-4.93-5.05-4.85-4.58-4.99 52.13-5.05 52.32-4.73 0.32 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.12 1.97 2.05 1.95 1.05 2.02 1.80 1.12 1.07 7 1.89 1.67 1.23 1.66 1.21 0.99 9 2.04 2.10 0.97 1.69 1.19 1.23 13 1.96 2.04 1.00 1.92 1.05 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 48.67)(1.12) + 47.59 0.98(F 7 - 43.14)(1.21) + 47.59 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.942 0.936 0.912 0.892 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.6 53.2 59.2 57.9 56.0 55.5 54.8 56.7 59.8 53.7 53.6 55.4 57.3 54.5 54.9 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 -1.9 -1.1 0.0 0.2 0.0 -0.2 -0.4 -1.2 -0.1 -1.4 -2.1 -1.8 0.0 -0.4 -0.2 S- 7 2.3 4.0 4.4 4.2 3.2 3.6 4.0 3.8 4.3 3.7 2.7 3.5 4.9 4.5 4.1 S- 9 3.8 4.9 5.5 5.2 4.0 4.5 4.8 4.5 4.7 3.7 3.8 4.9 5.7 5.3 6.1 S- 13 -4.5 -4.8 -2.6 -3.3 -3.4 -3.5 -3.8 -4.3 -3.0 -4.3 -4.3 -5.0 -4.2 -4.0 -4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.49-0.65-0.21-0.34-0.48-0.86 56.22 56.76-0.55 55.73 56.44-0.71 -0.17 7 4.11 4.13 4.55 4.11 3.78 3.95 52.01 4.21 51.92 3.80 -0.41 9 4.91 5.13 4.78 4.99 4.74 4.88 51.18 5.04 50.97 4.76 -0.28 13 -3.88-3.99-3.91-3.65-3.78-4.14 60.19-3.97 59.67-3.94 0.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.76 1.52 1.75 1.54 1.14 2.00 1.62 1.24 1.09 7 1.59 1.43 1.22 1.74 1.15 0.95 9 1.68 1.70 1.02 1.83 1.09 1.07 13 1.53 1.59 1.10 1.57 1.28 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 56.44)(1.24) + 55.73 0.97(F 7 - 51.92)(1.15) + 55.73 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 8 0.935 0.920 0.913 0.894 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.0 64.2 66.4 66.5 65.0 64.1 64.1 63.8 68.2 61.5 64.3 65.2 64.4 65.5 62.2 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7 S- 10 -1.1 -0.4 -0.3 -0.2 -0.3 0.3 -0.5 -1.3 0.3 -1.2 -1.1 -1.1 -0.6 0.2 0.5 S- 7 1.9 3.2 3.6 3.4 2.7 3.1 2.9 2.5 3.6 2.5 2.5 2.2 3.4 4.2 3.1 S- 9 4.0 4.6 5.2 4.7 4.0 4.8 5.6 4.4 4.5 3.6 4.3 4.6 4.6 5.2 6.1 S- 8 6.9 8.4 8.8 8.0 6.2 7.5 8.5 7.1 7.2 6.2 6.8 7.6 8.0 8.1 7.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.17-0.26 0.23-0.03-0.43-0.43 65.46 65.60-0.14 64.49 64.96-0.46 -0.33 7 3.39 3.60 3.74 3.38 3.09 3.07 61.88 3.58 61.50 2.99 -0.59 9 4.85 4.96 4.77 5.01 4.77 4.70 60.56 4.90 59.81 4.69 -0.21 8 7.84 7.94 7.98 7.94 7.83 7.34 57.52 7.94 56.97 7.52 -0.42 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.48 1.42 1.42 1.39 1.02 1.72 1.58 1.09 1.07 7 1.33 1.27 1.11 1.46 1.18 1.06 9 1.51 1.56 0.91 1.75 0.98 1.08 8 1.42 1.45 0.98 1.62 1.06 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 64.96)(1.09) + 64.49 0.96(F 7 - 61.50)(1.18) + 64.49 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 38 10 0.890 0.877 0.870 0.861 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.5 70.3 70.7 73.3 74.1 71.6 70.7 70.5 74.4 68.7 72.4 70.1 71.4 71.3 70.1 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 S- 9 4.3 4.1 4.1 4.7 4.5 4.4 4.3 4.1 4.0 3.6 4.1 3.4 4.2 4.7 5.6 S- 7 1.5 1.7 1.6 2.2 3.0 1.6 1.6 1.6 2.2 1.8 1.9 0.3 1.9 3.2 2.6 S- 38 1.3 1.8 1.4 1.5 1.8 1.6 2.6 1.8 1.4 1.4 2.0 1.1 1.7 1.8 3.0 S- 10 -0.9 -1.2 -1.1 -0.7 0.1 0.3 -1.1 -1.7 -0.3 -1.4 -1.5 -2.2 -0.8 -0.4 0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.56 4.83 4.84 4.43 4.37 4.24 72.16 67.31 4.85 71.32 67.04 4.28 -0.57 7 2.35 2.86 2.72 2.11 1.97 1.98 69.39 2.77 69.42 1.90 -0.87 38 1.81 1.72 2.16 1.64 1.74 1.78 70.33 1.83 69.57 1.75 -0.08 10 -0.33-0.13 0.30-0.36-0.74-0.88 72.15 0.02 72.15-0.83 -0.84 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.48 1.42 1.33 1.45 0.91 1.55 1.53 1.01 1.11 7 1.20 1.07 1.23 1.38 1.12 0.91 38 1.56 1.61 0.82 1.65 0.94 1.14 10 1.30 1.15 1.15 1.40 1.11 0.96 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.94(F 9 - 67.04)(1.01) + 71.32 0.94(F 7 - 69.42)(1.12) + 71.32 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 6 9 38 0.780 0.779 0.771 0.766 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.1 73.6 72.9 75.4 77.7 76.5 74.3 74.0 75.9 72.4 75.7 73.3 75.7 74.9 73.9 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 7 0.8 0.5 0.9 2.0 3.1 1.6 1.1 0.8 1.2 1.8 1.4 -0.7 1.3 2.6 1.8 S- 6 2.2 2.8 4.0 4.6 5.3 3.6 3.6 4.2 2.9 4.4 3.8 2.3 2.3 4.4 4.5 S- 9 3.6 3.1 3.8 4.4 5.0 4.4 3.5 3.7 3.9 3.9 3.6 2.1 3.3 5.1 4.8 S- 38 -0.2 0.3 0.9 1.3 3.0 1.7 1.4 1.5 1.5 2.1 1.4 -0.1 0.4 2.5 2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.81 2.43 2.12 1.60 1.43 1.34 75.41 73.07 2.34 74.76 73.42 1.34 -1.00 6 4.09 4.38 4.54 3.97 3.86 3.54 70.99 4.42 71.09 3.67 -0.75 9 4.43 4.84 4.97 4.34 4.01 3.82 70.51 4.90 70.87 3.89 -1.01 38 1.62 1.61 2.33 1.44 1.25 1.42 73.63 1.78 73.43 1.33 -0.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.32 1.05 1.06 0.92 1.16 1.40 1.18 1.18 1.02 6 1.34 1.30 0.81 1.57 0.89 1.09 9 1.17 1.06 1.00 1.25 1.12 1.12 38 1.33 1.30 0.82 1.39 1.00 1.23 Suggested regression eqns from two most closely related CDs ( 7 and 6): 0.88(F 7 - 73.42)(1.18) + 74.76 0.88(F 6 - 71.09)(0.89) + 74.76 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 38 39 0.823 0.818 0.800 0.796 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.1 71.0 72.6 73.3 75.8 74.2 71.8 72.6 74.1 72.0 74.3 71.4 74.5 72.6 72.9 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 S- 10 -1.3 -1.6 -0.9 -1.6 -0.5 -0.4 -2.2 -1.7 -1.3 -1.9 -2.1 -2.2 -0.6 -0.6 -0.5 S- 7 0.8 0.6 0.9 1.6 3.0 1.3 0.5 1.4 1.5 1.9 1.2 0.2 1.4 1.9 2.0 S- 38 -0.2 0.6 1.6 0.3 3.0 0.8 0.5 1.1 1.7 2.1 1.5 1.0 1.2 2.2 2.2 S- 39 -2.8 -1.5 -0.4 -1.8 0.7 -1.0 -1.0 -0.9 -0.8 0.1 -0.5 -0.7 -0.6 0.3 -0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.56 0.04 0.14-0.77-1.15-1.31 74.38 74.33 0.05 73.14 74.43-1.29 -1.33 7 1.92 2.64 2.25 1.85 1.29 1.44 71.85 2.53 71.81 1.33 -1.20 38 1.74 1.81 2.45 1.68 1.03 1.71 72.45 1.94 71.83 1.31 -0.63 39 -0.15 0.12 0.64-0.21-1.02-0.31 74.18 0.20 73.87-0.73 -0.94 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.52 1.24 1.28 1.12 1.15 1.29 1.08 1.19 1.03 7 1.19 1.31 0.98 1.04 1.23 1.27 38 1.54 1.41 0.91 1.33 0.96 1.06 39 1.60 1.40 0.92 1.45 0.89 0.97 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.91(F 10 - 74.43)(1.19) + 73.14 0.90(F 7 - 71.81)(1.23) + 73.14 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 6 38 0.867 0.860 0.852 0.850 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.9 68.1 67.5 67.1 66.9 65.8 66.4 66.7 67.8 64.3 66.3 65.4 68.6 66.9 66.5 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0 S- 7 0.5 1.8 1.6 2.0 3.2 2.2 1.1 1.1 2.0 1.8 1.4 2.1 1.8 2.2 2.2 S- 10 -2.1 -1.2 -1.3 -1.5 -0.4 -0.3 -1.7 -1.8 -0.7 -1.9 -2.3 -1.0 -0.5 -0.4 -0.6 S- 6 2.4 4.5 4.0 3.5 5.7 4.6 4.4 4.3 4.0 4.3 4.4 3.9 4.4 4.3 5.4 S- 38 -0.7 1.3 1.4 1.0 3.0 1.8 1.7 1.5 1.9 1.6 1.9 1.5 2.1 2.1 2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.36 2.96 2.74 2.28 1.76 1.92 68.31 65.38 2.93 66.75 64.95 1.80 -1.12 10 -0.54 0.03 0.15-0.84-1.12-1.05 68.22 0.08 67.92-1.17 -1.25 6 4.82 5.12 5.19 5.10 4.16 4.38 63.27 5.04 62.48 4.27 -0.77 38 2.06 2.21 2.68 2.08 1.36 1.95 66.08 2.23 65.11 1.63 -0.60 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.62 1.41 1.54 1.37 1.12 1.04 1.22 0.85 0.76 10 1.42 1.31 1.17 1.07 0.97 0.83 6 1.60 1.42 1.08 1.29 0.80 0.74 38 1.65 1.37 1.12 1.31 0.79 0.70 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.93(F 7 - 64.95)(0.85) + 66.75 0.93(F 10 - 67.92)(0.97) + 66.75 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 6 5 8 23 0.870 0.865 0.862 0.848 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.4 59.0 61.1 58.4 58.1 56.4 58.0 59.6 58.7 55.6 56.7 59.6 57.0 56.3 57.3 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 23 52.4 51.9 52.9 51.3 50.5 49.5 50.0 52.6 50.6 49.9 48.8 53.5 49.3 49.2 49.6 S- 6 3.2 5.9 5.2 4.5 5.6 5.6 5.9 5.3 5.9 3.8 5.1 5.6 6.0 5.5 5.9 S- 5 6.7 8.9 9.3 9.1 9.2 8.1 8.7 8.4 8.9 7.3 8.5 8.7 8.2 8.1 8.9 S- 8 6.2 8.2 7.8 7.9 8.4 7.7 7.5 7.2 8.1 6.2 6.8 8.5 7.1 6.8 7.8 S- 23 5.0 7.1 8.1 7.2 7.5 6.9 8.1 7.0 8.2 5.7 7.8 6.2 7.7 7.1 7.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 6 5.70 6.00 5.92 5.92 5.17 5.43 59.26 53.40 5.86 57.94 52.66 5.28 -0.58 5 8.69 8.61 8.65 9.14 8.59 8.36 50.65 8.61 49.48 8.46 -0.15 8 7.85 8.12 8.02 7.99 7.64 7.31 51.17 8.09 50.48 7.47 -0.63 23 7.34 7.58 7.29 7.47 7.11 7.20 51.94 7.32 50.79 7.15 -0.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 6 1.61 1.73 1.26 1.18 1.06 1.45 1.48 0.97 0.92 5 1.65 1.17 1.07 1.17 1.23 1.15 8 1.60 1.18 1.06 1.16 1.24 1.17 23 1.78 1.53 0.82 1.47 0.98 1.20 Suggested regression eqns from two most closely related CDs ( 6 and 5): 0.93(F 6 - 52.66)(0.97) + 57.94 0.93(F 5 - 49.48)(1.23) + 57.94 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 39 9 7 0.906 0.904 0.899 0.896 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.9 52.5 49.8 48.3 48.5 47.3 44.6 51.1 50.0 46.0 46.0 51.8 46.0 47.3 48.1 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 cd 39 44.4 50.5 47.2 46.5 46.9 44.7 42.5 48.2 47.8 46.0 45.0 50.0 44.5 45.9 45.3 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 S- 38 1.7 3.1 2.4 2.2 3.1 3.5 3.3 2.9 3.3 1.2 1.8 3.1 3.4 2.1 3.7 S- 39 1.5 2.0 2.6 1.7 1.6 2.6 2.2 2.9 2.2 0.0 1.0 1.8 1.4 1.3 2.7 S- 9 3.7 4.8 4.0 3.8 5.0 6.0 5.3 4.4 5.5 3.2 3.1 5.5 4.9 4.6 5.8 S- 7 1.2 3.5 3.0 2.4 3.5 3.8 3.1 2.2 3.5 1.6 1.3 4.1 2.5 2.6 2.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 2.94 3.30 3.33 2.79 2.55 2.68 48.70 45.35 3.35 48.21 45.48 2.73 -0.62 39 2.00 2.49 2.22 1.82 1.85 1.49 46.31 2.39 46.37 1.83 -0.56 9 5.02 5.47 5.41 4.84 4.61 4.66 43.22 5.48 43.56 4.64 -0.84 7 3.10 3.38 3.60 2.97 2.79 2.64 45.16 3.54 45.46 2.75 -0.79 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.96 2.17 1.33 1.48 0.89 2.31 2.20 1.05 1.17 39 2.03 1.38 0.96 2.09 1.11 1.15 9 2.15 1.54 0.86 2.26 1.02 1.19 7 1.92 1.48 0.89 1.99 1.16 1.30 Suggested regression eqns from two most closely related CDs ( 38 and 39): 0.95(F 38 - 45.48)(1.05) + 48.21 0.95(F 39 - 46.37)(1.11) + 48.21 Station#1857 CHARLOTTESVILLE/2 W , va 4159303 lat/lon 78.52 38.03 15M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 10 7 0.927 0.923 0.922 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.1 41.4 42.0 39.4 41.3 43.8 39.7 44.1 42.8 40.3 36.5 45.6 37.3 39.6 40.4 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 S- 9 4.9 5.6 5.3 3.5 4.8 5.8 5.3 4.6 5.7 2.3 2.8 5.8 4.7 4.5 3.1 S- 38 3.7 4.2 3.9 1.8 2.6 3.2 3.2 3.1 3.8 0.9 1.7 4.1 3.1 2.6 1.0 S- 10 -2.0 -1.2 -2.3 -3.1 -0.8 0.4 -2.1 -1.9 -1.7 -4.0 -4.7 -0.8 -1.8 -2.2 -3.1 S- 7 3.0 3.6 3.7 2.5 4.2 5.0 3.8 3.8 3.7 1.3 1.5 3.7 3.5 2.6 0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.94 5.30 5.30 4.92 4.82 4.12 40.77 35.43 5.34 40.82 36.24 4.58 -0.77 38 3.07 3.15 3.43 3.28 2.88 2.43 37.37 3.40 37.97 2.85 -0.55 10 -1.77-1.39-1.42-2.01-1.66-2.60 42.12-1.35 42.90-2.07 -0.73 7 3.42 3.73 3.88 3.31 3.47 2.40 36.91 3.86 37.72 3.10 -0.76 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.40 2.64 1.69 2.20 0.77 2.48 2.10 1.18 1.54 38 2.70 2.22 0.76 2.24 1.11 1.46 10 2.36 1.90 0.89 1.95 1.28 1.43 7 2.43 1.96 0.86 2.15 1.16 1.34 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.96(F 9 - 36.24)(1.18) + 40.82 0.96(F 38 - 37.97)(1.11) + 40.82 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.70 41.59 47.18 55.44 64.34 71.38 75.19 74.24 69.37 58.42 48.31 41.68 1952 41.24 43.34 47.98 55.96 66.44 73.92 76.65 73.19 65.21 56.58 47.30 42.86 1953 41.38 44.34 49.29 58.38 67.32 74.12 75.38 73.50 67.99 58.98 49.25 41.81 1954 40.52 43.19 50.71 56.38 65.07 70.50 75.55 75.50 70.29 59.53 47.50 38.90 1955 37.35 41.79 50.01 59.00 65.20 71.46 74.81 75.27 68.24 57.88 46.12 38.86 1956 37.55 41.35 47.18 54.68 63.49 71.11 74.68 73.22 67.19 57.36 50.70 43.19 1957 42.15 41.38 48.94 56.98 66.43 72.05 74.18 72.90 65.20 56.76 47.38 40.97 1958 35.91 36.38 43.87 54.34 64.09 71.54 75.11 73.92 66.74 58.45 46.91 39.46 1959 36.21 40.64 48.55 57.54 66.21 72.03 75.17 74.09 68.63 58.59 49.46 42.51 1960 39.29 37.10 44.28 53.01 65.64 70.77 75.22 74.03 68.59 59.07 47.42 38.43 1961 36.06 41.42 47.47 54.35 61.39 69.67 73.97 74.26 68.35 60.35 49.30 41.40 1962 37.47 39.19 46.06 56.19 65.56 71.69 73.12 71.43 67.23 57.74 47.50 38.12 1963 33.86 38.58 47.39 57.72 65.15 70.66 74.07 72.31 66.89 58.48 47.07 39.45 1964 35.43 40.59 47.25 56.91 65.71 71.96 74.34 72.07 64.60 57.24 48.82 43.18 1965 38.78 39.50 45.68 56.40 65.57 72.19 73.78 73.67 67.32 58.70 49.04 41.25 1966 37.46 39.34 46.09 54.86 62.96 71.23 74.42 72.93 65.31 56.86 47.20 42.29 1967 37.87 41.17 47.37 55.52 63.15 68.28 72.66 70.48 64.04 54.32 47.33 39.65 1968 36.27 38.56 46.49 55.87 63.30 70.19 75.14 73.94 67.99 58.49 47.88 39.19 1969 35.83 37.87 46.19 55.05 65.50 72.04 74.76 72.65 65.65 56.32 45.85 37.27 1970 34.87 37.54 46.40 55.75 65.75 71.99 74.54 74.50 68.96 60.07 49.37 40.84 1971 37.49 38.54 44.67 52.68 62.58 70.10 73.81 72.67 68.49 60.08 52.22 44.62 1972 40.90 41.32 46.16 55.07 61.79 68.48 72.34 72.88 66.06 56.33 47.50 41.71 1973 38.97 41.81 47.88 56.15 63.98 70.86 75.28 74.19 68.46 59.97 49.20 44.44 1974 40.94 44.51 48.22 56.24 62.27 68.08 70.41 69.60 62.95 54.85 46.00 40.75 1975 38.80 40.61 44.80 52.95 61.45 69.00 72.14 71.16 66.79 58.31 48.92 40.28 1976 38.30 41.60 48.92 54.22 61.43 66.82 70.92 68.84 61.60 51.63 42.15 34.06 1977 32.12 37.23 47.41 56.75 63.62 70.64 74.20 74.18 66.05 56.76 45.11 36.74 1978 30.77 32.92 41.61 51.65 61.41 67.48 72.47 71.71 64.51 56.13 46.58 40.99 1979 34.29 36.66 43.45 53.90 60.67 66.44 70.27 69.96 63.59 55.43 46.38 40.71 1980 35.49 36.27 42.24 52.14 61.11 68.28 73.03 74.15 66.83 55.48 43.84 35.66 1981 33.85 35.51 45.30 52.44 63.46 68.57 71.96 68.77 61.02 53.19 43.23 35.30 1982 33.05 36.39 44.47 53.39 61.83 69.25 70.61 69.11 63.10 55.64 48.29 41.04 1983 37.47 38.47 44.15 52.08 60.28 68.37 73.23 71.90 65.21 55.17 44.50 36.21 1984 34.88 37.55 44.53 51.14 60.94 67.44 71.21 68.34 65.76 56.13 50.21 39.40 1985 37.25 37.97 46.99 55.93 63.69 68.64 71.09 69.88 64.71 58.67 47.71 39.67 1986 34.72 38.12 46.00 53.84 63.76 70.34 73.24 71.19 64.72 56.78 46.75 38.40 1987 34.28 36.56 42.50 52.46 62.17 71.13 75.07 73.74 64.03 54.34 44.69 37.83 1988 34.03 35.81 44.06 52.64 60.66 68.06 72.83 71.58 62.83 51.93 42.23 38.98 1989 37.39 40.91 45.45 52.27 61.43 68.84 73.02 71.05 64.60 55.84 42.88 38.18 1990 37.42 44.31 48.71 54.91 61.82 68.84 72.61 71.65 65.37 56.86 48.72 41.64 1991 39.03 41.05 47.80 57.00 65.14 72.12 73.90 72.30 64.80 55.00 46.27 40.74 1992 39.62 40.91 45.91 51.72 59.17 66.58 70.42 70.06 62.19 53.97 43.83 38.74 1993 35.32 36.80 41.65 51.84 62.37 71.58 74.70 73.89 65.17 55.27 43.97 36.23 1994 33.71 37.46 46.62 53.71 62.95 69.45 73.77 70.81 62.99 55.05 47.56 42.05 1995 38.05 40.06 45.89 54.59 62.14 69.19 73.58 72.09 65.78 54.27 43.77 35.92 1996 34.31 36.28 42.95 52.03 62.40 69.18 72.14 70.51 64.42 53.88 45.03 38.26 1997 38.34 41.18 46.41 51.67 58.26 66.18 71.00 70.28 63.50 53.84 44.49 38.05 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 9 38 0.891 0.889 0.877 0.876 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.5 34.9 37.3 34.7 34.3 34.0 37.4 37.4 39.0 39.6 35.3 33.7 38.0 34.3 38.3 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 S- 13 -5.8 -6.9 -6.2 -7.8 -7.2 -6.9 -6.9 -7.2 -6.9 -6.4 -7.6 -7.4 -5.6 -6.5 -6.4 S- 10 -3.2 -3.6 -3.0 -4.2 -4.1 -4.1 -3.3 -3.5 -4.4 -3.1 -5.0 -3.8 -3.4 -2.9 -3.5 S- 9 2.3 3.5 4.4 3.2 1.9 1.9 2.9 3.7 2.7 3.9 1.4 3.4 3.9 3.7 2.9 S- 38 -0.6 2.4 3.6 1.2 -0.7 0.1 0.8 1.6 1.4 1.4 -0.2 1.6 1.9 1.8 1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -5.68-4.89-4.47-5.75-6.92-6.67 38.13 42.99-4.86 36.39 43.16-6.77 -1.91 10 -2.36-1.34-1.05-2.49-3.61-3.74 39.40-1.27 40.07-3.69 -2.42 9 4.52 5.26 6.01 4.75 3.05 3.13 32.62 5.51 33.35 3.04 -2.47 38 2.52 2.95 3.95 2.99 1.05 1.27 34.82 3.31 35.24 1.15 -2.16 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.56 2.54 2.37 2.78 0.85 1.93 1.66 1.16 1.36 10 2.48 2.49 0.95 1.82 1.06 1.11 9 2.89 2.99 0.79 1.85 1.04 1.32 38 3.07 3.13 0.76 2.04 0.94 1.25 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.94(F 13 - 43.16)(1.16) + 36.39 0.94(F 10 - 40.07)(1.06) + 36.39 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.893 0.872 0.864 0.859 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.5 37.5 38.0 38.1 36.6 35.8 40.9 44.3 41.0 40.9 36.8 37.5 40.1 36.3 41.2 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -3.3 -3.1 -3.0 -4.4 -3.7 -4.0 -2.6 -3.9 -3.9 -2.7 -4.8 -3.3 -2.9 -3.1 -3.0 S- 13 -5.9 -7.5 -6.7 -8.6 -7.3 -7.3 -6.8 -7.1 -7.0 -6.2 -8.0 -7.9 -5.9 -7.1 -7.7 S- 9 2.4 3.7 4.5 2.3 1.2 1.9 2.7 2.3 3.0 3.9 1.6 4.3 4.0 3.5 3.3 S- 38 -0.3 1.7 3.2 -0.5 -2.2 -0.1 0.5 0.1 1.0 1.3 -0.3 2.5 1.8 1.5 1.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.21-1.21-0.99-2.27-3.53-3.40 40.69 41.89-1.20 38.90 42.35-3.45 -2.25 13 -6.01-5.10-4.74-6.10-7.32-7.12 45.76-5.07 46.03-7.13 -2.06 9 4.43 5.47 5.65 4.65 2.70 3.37 35.21 5.48 35.92 2.97 -2.51 38 2.15 2.95 3.41 2.57 0.28 1.30 37.64 3.05 38.13 0.76 -2.29 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.61 2.45 2.15 2.14 1.01 2.31 2.25 1.03 1.02 13 2.57 2.47 0.87 2.21 1.05 1.20 9 2.79 2.46 0.88 2.36 0.98 1.12 38 3.03 2.71 0.80 2.54 0.91 1.15 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.95(F 10 - 42.35)(1.03) + 38.90 0.93(F 13 - 46.03)(1.05) + 38.90 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 38 9 13 0.811 0.794 0.790 0.789 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.2 44.5 47.0 46.0 42.5 44.1 45.5 48.7 47.8 45.9 41.7 46.6 45.9 43.0 46.4 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 -3.2 -3.1 -3.4 -3.5 -3.8 -3.5 -2.5 -3.6 -3.5 -3.2 -4.5 -3.6 -2.7 -3.4 -3.0 S- 38 -0.3 0.5 1.1 -1.0 -3.0 0.2 0.6 0.4 -0.1 -0.3 -0.4 1.1 0.8 1.4 0.6 S- 9 2.3 3.1 3.3 1.9 0.6 2.1 3.3 2.5 2.6 2.7 1.8 3.1 3.7 3.1 3.0 S- 13 -5.9 -6.8 -6.7 -8.2 -7.5 -7.0 -6.8 -6.7 -7.0 -6.6 -7.4 -7.3 -6.7 -7.1 -7.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.06-1.07-0.54-2.39-3.31-3.41 47.46 48.40-0.94 45.31 48.67-3.36 -2.43 38 1.37 2.64 2.48 1.12-0.12 0.45 44.93 2.53 45.19 0.11 -2.41 9 4.00 5.27 5.25 3.78 2.50 2.86 42.19 5.27 42.70 2.61 -2.66 13 -5.84-4.69-4.57-6.18-7.05-7.05 52.13-4.67 52.32-7.01 -2.34 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.13 1.97 1.87 1.95 0.96 1.92 1.80 1.07 1.11 38 2.21 2.29 0.81 1.81 1.06 1.30 9 2.04 2.10 0.89 1.69 1.13 1.28 13 1.96 2.04 0.92 1.92 1.00 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 38): 0.90(F 10 - 48.67)(1.07) + 45.31 0.89(F 38 - 45.19)(1.06) + 45.31 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 38 10 11 0.738 0.728 0.726 0.722 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 52.1 51.1 55.9 53.8 52.5 52.6 52.3 54.9 57.0 51.7 51.8 53.7 54.6 52.0 51.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 S- 13 -6.0 -6.8 -5.9 -7.3 -6.9 -6.3 -6.3 -6.0 -5.8 -6.2 -6.1 -6.7 -6.9 -6.5 -7.3 S- 38 0.0 0.8 -0.5 -1.5 -3.0 -0.6 -0.7 0.7 -1.0 -1.1 0.0 1.0 0.2 0.5 0.4 S- 10 -3.4 -3.2 -3.2 -3.8 -3.5 -3.1 -3.0 -3.0 -2.9 -3.4 -3.8 -3.5 -2.7 -2.9 -3.4 S- 11 -0.4 -1.0 -0.1 -1.7 -2.6 -1.1 -1.5 -0.5 -0.7 -1.1 -0.5 -0.3 -1.0 -0.8 -1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -5.26-4.09-3.91-5.63-6.55-6.51 56.22 60.19-3.97 53.19 59.67-6.48 -2.51 38 0.81 2.25 1.91 0.34-0.71 0.01 54.02 2.19 53.51-0.32 -2.52 10 -1.87-0.75-0.21-2.33-3.25-3.23 56.76-0.55 56.44-3.25 -2.70 11 0.19 1.60 1.23-0.14-1.22-0.82 54.68 1.54 54.16-0.97 -2.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.02 1.53 1.59 1.59 1.00 1.68 1.57 1.07 1.07 38 1.82 1.74 0.91 2.05 0.82 0.90 10 1.52 1.54 1.03 1.62 1.04 1.00 11 1.54 1.66 0.96 1.58 1.07 1.12 Suggested regression eqns from two most closely related CDs ( 13 and 38): 0.86(F 13 - 59.67)(1.07) + 53.19 0.85(F 38 - 53.51)(0.82) + 53.19 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 38 9 0.805 0.797 0.791 0.782 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.3 60.9 63.7 63.8 62.2 60.7 61.4 61.8 65.1 59.2 62.4 63.0 62.1 62.4 58.3 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 11 0.3 -0.5 0.5 -0.5 -1.2 -0.7 0.9 -0.3 0.1 -1.0 0.5 0.2 -0.2 -0.1 -0.3 S- 13 -5.1 -5.7 -5.3 -6.2 -5.9 -5.9 -5.2 -6.0 -4.8 -6.0 -5.1 -5.4 -6.0 -5.7 -5.6 S- 38 0.0 -0.9 -0.2 -0.9 -2.2 -1.5 0.6 0.2 -1.6 -1.3 0.7 0.1 -0.4 0.0 -0.2 S- 9 2.3 1.4 2.5 2.0 1.1 1.3 3.0 2.5 1.4 1.2 2.4 2.3 2.4 2.1 2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 0.77 1.91 1.76 0.29-0.27-0.13 65.17 63.26 1.91 61.81 61.96-0.15 -2.06 13 -4.58-3.68-3.16-5.09-5.74-5.50 68.64-3.46 67.41-5.60 -2.13 38 0.46 1.61 1.49-0.11-0.52-0.40 63.55 1.63 62.31-0.50 -2.13 9 3.21 4.55 4.40 2.66 2.09 1.99 60.56 4.61 59.81 2.00 -2.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.06 1.51 1.38 1.45 0.96 1.73 1.64 1.05 1.10 13 1.50 1.36 1.02 1.66 1.04 1.02 38 1.68 1.64 0.84 1.97 0.88 1.04 9 1.51 1.56 0.89 1.75 0.99 1.11 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.90(F 11 - 61.96)(1.05) + 61.81 0.89(F 13 - 67.41)(1.04) + 61.81 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 9 13 0.745 0.743 0.739 0.713 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.4 67.4 68.6 70.3 71.1 68.1 68.8 68.8 72.1 66.6 71.6 69.4 69.2 69.2 66.2 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 38 -0.8 -1.0 -0.6 -1.4 -1.2 -1.9 0.7 0.1 -0.9 -0.7 1.2 0.5 -0.6 -0.2 -0.9 S- 11 0.3 -0.2 0.1 -0.5 0.0 0.1 1.6 0.2 1.2 -0.2 1.2 1.5 0.5 0.1 -0.3 S- 9 2.2 1.3 2.0 1.8 1.5 0.9 2.5 2.5 1.7 1.5 3.3 2.8 2.0 2.7 1.7 S- 13 -5.3 -5.6 -5.2 -6.5 -4.7 -4.8 -4.1 -5.7 -3.8 -5.6 -4.5 -4.1 -5.1 -5.5 -5.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 0.30 1.19 1.56-0.37-0.80-0.23 71.67 70.33 1.34 69.06 69.57-0.51 -1.85 11 1.23 2.12 2.52 0.73 0.03 0.56 69.39 2.28 68.69 0.37 -1.90 9 3.06 4.30 4.24 2.43 1.84 2.23 67.31 4.36 67.04 2.02 -2.34 13 -4.00-3.19-2.46-4.43-5.34-4.84 74.61-2.94 74.11-5.05 -2.11 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.90 1.56 1.14 1.61 0.70 1.65 1.65 1.00 1.41 11 1.47 1.43 0.79 1.45 1.13 1.43 9 1.42 1.45 0.78 1.53 1.08 1.38 13 1.48 1.32 0.86 1.49 1.11 1.28 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.86(F 38 - 69.57)(1.00) + 69.06 0.86(F 11 - 68.69)(1.13) + 69.06 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 38 11 9 0.640 0.637 0.635 0.635 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.2 71.2 71.1 73.2 75.1 72.8 73.0 72.6 73.9 70.4 74.7 73.8 73.6 72.1 71.0 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 S- 10 -2.9 -3.9 -3.3 -3.4 -2.5 -3.2 -2.9 -3.2 -2.9 -3.6 -2.5 -2.5 -2.9 -2.6 -3.0 S- 38 -2.0 -2.1 -0.9 -0.8 0.3 -2.0 0.2 0.1 -0.5 0.1 0.4 0.3 -1.7 -0.2 -0.8 S- 11 0.4 -0.5 -0.1 -0.3 1.4 0.3 1.5 0.5 1.3 0.2 0.8 1.7 0.5 0.7 0.3 S- 9 1.8 0.7 2.0 2.2 2.3 0.8 2.2 2.3 1.9 1.9 2.6 2.5 1.2 2.4 1.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.93-0.78-0.64-2.43-3.24-2.86 74.75 75.44-0.69 72.79 75.81-3.02 -2.33 38 0.18 0.94 1.50-0.35-0.97-0.35 73.63 1.12 73.43-0.64 -1.76 11 1.40 2.19 2.72 1.04 0.09 0.78 72.39 2.36 72.21 0.57 -1.78 9 3.00 4.17 4.14 2.55 1.79 2.05 70.51 4.24 70.87 1.92 -2.32 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.60 1.07 0.84 0.93 0.90 1.34 1.08 1.24 1.38 38 1.33 1.30 0.64 1.39 0.96 1.49 11 1.21 1.17 0.72 1.06 1.26 1.76 9 1.17 1.06 0.79 1.25 1.07 1.36 Suggested regression eqns from two most closely related CDs ( 10 and 38): 0.80(F 10 - 75.81)(1.24) + 72.79 0.80(F 38 - 73.43)(0.96) + 72.79 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 13 11 10 0.727 0.722 0.718 0.715 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.9 68.3 69.9 71.2 73.7 71.6 71.1 71.7 72.3 70.1 73.9 70.8 72.1 70.5 70.3 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 S- 38 -2.4 -2.1 -1.1 -1.8 0.9 -1.8 -0.3 0.1 -0.1 0.2 1.1 0.4 -1.2 0.1 -0.4 S- 13 -5.3 -5.8 -4.7 -6.0 -3.9 -4.5 -3.9 -5.3 -3.9 -5.4 -4.4 -3.6 -4.5 -4.6 -5.1 S- 11 0.0 -0.8 0.2 -1.0 1.8 0.2 0.9 0.5 0.8 -0.1 1.1 1.4 0.2 0.8 0.1 S- 10 -3.5 -4.2 -3.6 -3.7 -2.5 -3.0 -3.0 -2.6 -3.1 -3.8 -2.5 -2.8 -3.1 -2.6 -3.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 0.27 0.94 1.59-0.06-1.19 0.01 73.57 72.45 1.13 71.28 71.83-0.55 -1.68 13 -3.69-2.79-2.33-3.97-5.09-4.50 76.22-2.65 76.00-4.72 -2.07 11 1.31 2.13 2.65 1.01-0.06 0.63 71.32 2.25 70.88 0.41 -1.84 10 -2.03-0.83-0.71-2.51-3.38-3.01 74.33-0.76 74.43-3.15 -2.38 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.83 1.54 1.07 1.41 0.76 1.39 1.33 1.05 1.37 13 1.32 1.12 0.96 1.23 1.13 1.18 11 1.34 1.14 0.94 1.11 1.25 1.34 10 1.24 1.12 0.96 1.08 1.29 1.34 Suggested regression eqns from two most closely related CDs ( 38 and 13): 0.85(F 38 - 71.83)(1.05) + 71.28 0.85(F 13 - 76.00)(1.13) + 71.28 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 50 38 0.816 0.805 0.803 0.803 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 65.2 65.8 64.7 64.7 64.0 62.8 64.6 65.4 64.8 62.2 65.2 63.0 65.8 64.4 63.5 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 50 69.8 69.2 68.6 69.1 67.0 67.1 67.2 68.7 68.8 65.7 67.6 66.8 68.8 67.0 67.1 cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0 S- 13 -5.5 -5.3 -5.6 -5.8 -4.9 -5.4 -4.7 -5.8 -4.8 -5.7 -5.3 -4.9 -4.8 -4.3 -5.5 S- 11 -0.5 -0.5 -0.9 -1.1 0.5 -0.3 0.4 0.1 -0.4 -0.9 0.2 -0.4 0.2 0.3 -0.4 S- 50 -4.6 -3.4 -3.9 -4.4 -3.0 -4.2 -2.6 -3.3 -4.0 -3.5 -2.4 -3.8 -3.0 -2.6 -3.6 S- 38 -2.4 -1.1 -1.4 -1.4 0.1 -1.2 -0.2 0.2 -1.0 -0.5 0.8 -0.8 -0.7 -0.3 -0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -4.02-2.95-2.63-4.29-5.50-5.05 67.46 70.25-2.79 64.41 69.62-5.22 -2.43 11 0.91 1.96 2.29 0.69-0.51-0.20 65.38 2.07 64.65-0.24 -2.31 50 -2.29-1.38-0.98-2.28-3.81-3.28 68.78-1.32 67.90-3.50 -2.18 38 0.35 1.30 1.62 0.18-1.14-0.45 66.08 1.38 65.11-0.71 -2.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.16 1.44 1.53 1.41 1.09 1.05 1.10 0.96 0.88 11 1.43 1.27 1.21 1.04 1.01 0.84 50 1.61 1.45 1.06 1.12 0.94 0.89 38 1.65 1.37 1.12 1.31 0.80 0.72 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.90(F 13 - 69.62)(0.96) + 64.41 0.90(F 11 - 64.65)(1.01) + 64.41 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 5 8 6 13 0.815 0.794 0.773 0.771 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 55.2 56.1 58.7 56.8 54.3 51.9 55.8 56.9 55.0 54.0 55.3 55.0 54.3 53.9 53.8 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 5 4.5 6.1 6.9 7.4 5.5 3.7 6.5 5.6 5.1 5.6 7.0 4.1 5.5 5.7 5.5 S- 8 4.0 5.3 5.4 6.2 4.7 3.3 5.3 4.4 4.4 4.5 5.4 3.9 4.3 4.4 4.3 S- 6 1.0 3.0 2.8 2.8 1.8 1.2 3.7 2.6 2.2 2.2 3.7 1.1 3.3 3.2 2.5 S- 13 -5.8 -5.4 -6.3 -6.3 -5.5 -6.9 -5.3 -6.0 -5.4 -6.3 -6.2 -5.8 -5.5 -5.1 -5.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 5 6.76 7.54 7.57 7.15 5.66 5.51 58.28 50.65 7.63 55.13 49.48 5.65 -1.98 8 5.92 7.05 6.94 6.00 4.72 4.46 51.17 7.11 50.48 4.66 -2.45 6 3.78 4.93 4.84 3.93 2.24 2.58 53.40 4.87 52.66 2.47 -2.40 13 -4.40-3.27-2.85-4.66-5.89-5.70 61.38-3.10 60.96-5.82 -2.72 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 5 2.14 1.65 1.00 1.17 0.85 1.55 1.17 1.32 1.55 8 1.60 1.18 0.84 1.16 1.33 1.58 6 1.73 1.18 0.84 1.48 1.04 1.24 13 1.52 0.79 1.25 1.60 0.97 0.77 Suggested regression eqns from two most closely related CDs ( 5 and 8): 0.90(F 5 - 49.48)(1.32) + 55.13 0.89(F 8 - 50.48)(1.33) + 55.13 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 38 9 11 0.805 0.777 0.777 0.776 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.5 50.2 47.7 46.8 44.7 42.2 42.9 48.7 46.3 43.8 44.0 47.6 43.8 45.0 44.5 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 S- 13 -6.2 -5.3 -7.1 -6.6 -6.1 -7.4 -6.4 -6.1 -6.1 -6.8 -6.8 -5.9 -5.9 -5.4 -5.4 S- 38 0.2 0.8 0.3 0.6 -0.8 -1.5 1.6 0.5 -0.3 -0.9 -0.2 -1.2 1.2 -0.1 0.1 S- 9 2.3 2.5 1.9 2.3 1.2 1.0 3.5 2.0 1.8 1.0 1.1 1.2 2.7 2.4 2.2 S- 11 -0.8 -0.2 -1.6 -1.9 -1.3 -1.8 0.1 -0.4 -0.9 -1.5 -1.7 -1.4 -0.1 -0.8 -0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -4.79-3.76-3.26-4.97-6.28-6.06 48.14 51.66-3.52 45.51 51.75-6.24 -2.72 38 1.39 2.61 2.94 1.16-0.01-0.20 45.35 2.79 45.48 0.03 -2.76 9 3.47 4.79 5.02 3.21 2.05 1.78 43.22 4.92 43.56 1.94 -2.98 11 0.56 1.77 2.10 0.37-0.94-0.93 46.20 1.94 46.46-0.96 -2.89 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.28 1.84 1.20 1.31 0.91 2.20 2.05 1.07 1.17 38 2.17 1.48 0.81 2.20 1.00 1.23 9 2.15 1.54 0.78 2.26 0.97 1.25 11 2.00 1.44 0.83 2.26 0.97 1.17 Suggested regression eqns from two most closely related CDs ( 13 and 38): 0.90(F 13 - 51.75)(1.07) + 45.51 0.88(F 38 - 45.48)(1.00) + 45.51 Station#1858 CHATHAM , va 4161402 lat/lon 79.32 36.87 35M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 9 0.862 0.827 0.822 0.807 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.2 39.4 39.7 38.4 37.8 39.0 38.2 41.6 40.7 38.7 36.2 42.0 35.9 38.3 38.0 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 13 -7.0 -5.7 -6.9 -7.0 -6.5 -7.4 -6.7 -6.3 -5.7 -7.4 -7.0 -5.7 -5.9 -6.3 -6.8 S- 10 -3.9 -3.2 -4.6 -4.1 -4.2 -4.5 -3.5 -4.4 -3.8 -5.5 -5.0 -4.3 -3.2 -3.5 -5.5 S- 11 -1.1 0.6 -0.5 -2.4 -1.6 -2.2 0.0 -1.4 -0.1 -2.5 -1.3 -0.7 -0.6 -1.0 -1.6 S- 9 3.0 3.6 3.0 2.5 1.4 0.9 3.8 2.1 3.6 0.7 2.5 2.2 3.3 3.1 0.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -5.25-4.52-3.89-5.24-6.56-6.39 40.80 45.11-4.31 38.69 45.23-6.54 -2.24 10 -2.63-1.47-1.13-2.73-3.95-4.41 42.12-1.32 42.90-4.21 -2.89 11 0.38 1.39 1.68 0.54-1.06-1.13 39.26 1.55 39.78-1.10 -2.64 9 4.08 5.23 5.59 4.20 2.53 2.32 35.43 5.37 36.24 2.44 -2.93 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.41 2.24 1.73 1.95 0.89 1.78 1.65 1.08 1.22 10 2.36 1.90 0.91 1.95 0.91 1.00 11 2.43 2.14 0.81 1.87 0.95 1.18 9 2.64 2.20 0.79 2.10 0.85 1.08 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.93(F 13 - 45.23)(1.08) + 38.69 0.91(F 10 - 42.90)(0.91) + 38.69 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.19 38.76 43.83 51.72 60.57 67.84 71.05 70.10 65.49 55.32 45.50 38.73 1952 38.28 40.14 44.67 52.11 62.45 69.81 73.15 69.98 62.11 53.55 44.25 39.70 1953 37.73 40.74 45.35 54.46 63.29 70.78 72.74 71.05 65.32 55.79 46.48 38.51 1954 37.29 38.78 46.74 52.22 61.13 66.21 70.97 71.14 65.99 55.85 43.91 35.40 1955 33.69 37.93 45.93 54.77 61.04 68.13 71.72 72.33 65.28 54.80 43.19 34.76 1956 33.74 37.38 44.00 51.34 60.58 67.97 71.01 68.74 63.13 54.11 48.11 39.69 1957 38.33 37.31 45.86 53.61 63.08 68.62 71.66 70.76 63.20 54.42 44.67 37.78 1958 31.87 31.49 39.22 50.12 60.17 67.55 70.90 70.20 63.18 55.36 43.83 36.53 1959 33.32 37.30 44.68 53.54 62.64 69.00 72.47 71.76 66.12 55.44 45.73 38.34 1960 34.98 31.98 39.26 48.21 61.48 66.55 71.38 70.52 64.81 55.13 42.38 32.68 1961 29.62 35.55 42.90 49.95 57.50 65.84 70.81 70.98 65.08 56.37 44.50 36.99 1962 33.69 35.81 42.16 51.85 61.86 68.16 70.45 68.83 64.35 54.36 42.70 33.13 1963 28.72 34.88 43.62 54.28 62.05 68.41 72.15 69.92 64.62 55.98 43.82 35.45 1964 30.35 36.08 43.02 53.84 63.05 70.04 72.86 71.13 62.98 54.48 45.24 38.88 1965 35.09 36.04 43.12 53.34 62.27 69.12 71.42 71.55 64.77 55.65 45.90 37.57 1966 33.07 35.26 42.41 52.27 60.34 69.20 72.51 69.91 61.92 52.87 43.33 38.30 1967 33.82 38.15 44.37 52.72 60.92 66.33 70.54 67.56 61.36 51.55 43.38 34.46 1968 31.08 34.64 43.91 53.76 61.63 68.19 73.00 71.12 64.74 55.28 44.75 36.19 1969 31.92 33.88 42.41 52.47 63.82 70.15 72.59 69.97 63.11 53.54 42.02 32.69 1970 30.03 33.09 42.02 51.92 62.20 69.61 72.47 72.57 66.83 57.24 45.88 35.92 1971 33.07 34.64 42.32 50.37 60.61 67.58 71.04 70.28 66.27 57.28 48.80 40.76 1972 37.41 37.21 42.40 51.57 59.14 66.01 69.36 69.95 63.18 53.82 44.61 38.26 1973 35.52 38.54 44.64 52.86 60.73 67.79 71.53 69.44 63.25 55.29 45.10 41.07 1974 37.71 41.61 45.75 54.04 60.48 66.05 68.58 67.00 59.47 50.81 42.47 37.95 1975 35.98 37.67 42.33 51.50 60.91 68.17 70.60 68.21 63.38 55.47 46.85 38.48 1976 36.94 41.16 48.65 54.19 61.69 67.63 70.81 69.01 61.72 51.24 40.32 30.37 1977 29.25 35.11 47.12 56.75 63.27 70.46 74.05 73.93 65.43 55.64 44.14 34.82 1978 27.32 29.17 38.89 50.76 61.13 67.49 72.26 71.50 65.02 55.66 45.64 37.87 1979 31.08 33.82 41.43 53.29 60.30 66.74 70.34 69.52 63.30 54.98 46.10 38.89 1980 33.45 34.43 41.29 51.86 61.23 69.16 73.29 73.65 66.25 55.50 44.11 35.31 1981 33.43 35.22 45.16 52.56 62.95 67.99 71.49 69.30 62.32 53.46 42.52 33.99 1982 31.50 35.52 43.62 53.27 61.50 69.36 70.69 69.52 63.37 55.99 48.10 40.28 1983 35.58 36.63 42.53 51.45 59.78 68.15 73.30 72.15 65.48 55.49 44.23 35.62 1984 34.07 36.67 43.86 50.68 61.89 68.79 72.55 69.31 65.89 55.73 49.50 38.67 1985 36.72 37.17 46.48 55.44 63.00 68.29 70.70 70.13 65.16 58.92 47.92 39.55 1986 34.30 38.18 45.67 54.73 63.82 70.99 73.60 72.14 65.59 56.60 46.14 37.25 1987 33.58 36.16 42.69 52.67 62.28 71.10 74.88 72.95 64.12 54.77 45.50 37.97 1988 34.07 35.95 43.99 52.79 60.98 68.88 73.81 72.37 63.45 53.16 43.55 40.02 1989 37.25 40.07 44.23 51.77 61.03 68.56 72.38 70.26 64.21 55.16 41.00 36.31 1990 36.13 44.80 48.49 54.06 61.83 69.17 72.94 71.37 65.47 57.62 48.90 41.26 1991 38.84 40.82 47.95 57.00 65.52 72.00 73.53 72.21 66.18 56.77 47.31 39.97 1992 37.96 39.53 45.71 52.32 60.23 67.38 71.09 70.45 62.90 54.42 44.64 39.24 1993 35.31 36.38 41.56 51.77 62.16 70.47 74.41 73.38 65.56 55.33 43.77 33.78 1994 29.95 32.91 43.86 51.26 61.84 67.73 72.27 68.93 61.12 53.95 45.87 40.13 1995 34.29 36.24 41.39 51.08 59.42 67.59 72.43 70.67 64.40 52.60 41.14 32.15 1996 29.84 32.03 39.67 48.72 60.08 66.42 70.12 68.02 62.30 51.67 42.33 34.70 1997 34.50 37.28 42.81 49.06 57.08 66.11 70.64 69.32 62.08 52.33 42.91 35.87 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 7 13 0.939 0.938 0.926 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.6 34.1 36.7 34.3 33.6 34.1 37.3 36.1 38.8 38.0 35.3 30.0 34.3 29.8 34.5 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 9 0.4 2.7 3.9 2.8 1.2 1.9 2.7 2.4 2.5 2.2 1.4 -0.4 0.1 -0.8 -0.9 S- 10 -5.1 -4.5 -3.6 -4.7 -4.8 -4.1 -3.4 -4.8 -4.6 -4.8 -5.0 -7.6 -7.2 -7.4 -7.3 S- 7 -0.6 1.3 1.9 2.0 0.4 1.2 2.2 1.6 1.5 1.6 1.0 -0.4 -1.5 -1.5 -2.2 S- 13 -7.7 -7.7 -6.8 -8.3 -7.9 -6.8 -7.0 -8.5 -7.0 -8.0 -7.6-11.1 -9.4-11.0-10.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.60 1.77 1.35 1.72 2.28 0.60 34.19 32.62 1.57 34.83 33.35 1.48 -0.09 10 -5.28-4.83-5.70-5.53-4.38-6.27 39.40-5.20 40.07-5.25 -0.05 7 0.61 0.79 0.38 0.63 1.23-0.25 33.45 0.74 34.28 0.55 -0.19 13 -8.60-8.38-9.12-8.78-7.69-9.20 42.99-8.79 43.16-8.33 0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.87 2.89 2.99 2.99 1.00 2.45 1.85 1.32 1.32 10 2.48 2.49 1.20 1.82 1.34 1.12 7 2.52 2.68 1.11 2.00 1.22 1.10 13 2.54 2.78 1.07 1.66 1.47 1.37 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 33.35)(1.32) + 34.83 0.97(F 10 - 40.07)(1.34) + 34.83 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 7 0.940 0.939 0.924 0.917 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.6 36.7 37.2 38.2 36.2 36.0 40.1 44.8 40.8 39.5 36.4 32.9 36.2 32.0 37.3 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 S- 9 0.6 2.8 3.7 2.3 0.8 2.0 1.9 2.8 2.8 2.5 1.2 -0.3 0.2 -0.8 -0.6 S- 10 -5.2 -4.0 -3.8 -4.3 -4.1 -3.9 -3.5 -3.4 -4.1 -4.1 -5.2 -7.9 -6.7 -7.4 -6.9 S- 38 -2.2 0.8 2.4 -0.5 -2.6 0.1 -0.3 0.5 0.8 -0.1 -0.8 -2.0 -2.0 -2.7 -2.6 S- 7 -0.4 2.4 1.6 1.9 0.6 1.3 2.7 2.7 1.9 2.5 1.4 0.7 -1.2 -1.7 -1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.63 1.54 1.61 1.84 2.18 0.72 36.68 35.21 1.47 37.39 35.92 1.47 0.00 10 -5.01-5.14-5.03-5.08-4.05-6.05 41.89-5.21 42.35-4.96 0.25 38 -0.64-0.98-0.63-0.24-0.24-1.35 37.64-0.96 38.13-0.75 0.22 7 1.01 0.72 1.10 1.09 1.59 0.35 35.81 0.87 36.37 1.01 0.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.90 2.79 2.52 2.46 1.02 3.00 2.36 1.27 1.24 10 2.45 2.14 1.18 2.25 1.34 1.14 38 3.03 2.71 0.93 2.54 1.18 1.27 7 2.26 1.94 1.30 2.33 1.29 0.99 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 35.92)(1.27) + 37.39 0.97(F 10 - 42.35)(1.34) + 37.39 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 39 0.923 0.910 0.897 0.880 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.5 43.9 46.5 45.7 42.7 44.0 44.2 48.5 48.0 45.7 41.6 43.9 41.4 39.7 42.8 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 cd 39 44.8 45.1 47.1 49.0 47.4 45.2 45.2 49.1 49.2 48.4 43.1 46.9 47.3 42.9 46.8 S- 9 0.6 2.4 2.8 1.6 0.8 2.1 2.1 2.3 2.7 2.5 1.7 0.3 -0.8 -0.2 -0.5 S- 10 -4.8 -3.8 -3.9 -3.9 -3.6 -3.5 -3.8 -3.8 -3.3 -3.4 -4.6 -6.4 -7.2 -6.7 -6.5 S- 38 -2.0 -0.1 0.6 -1.3 -2.8 0.1 -0.6 0.2 0.0 -0.5 -0.5 -1.7 -3.7 -1.9 -3.0 S- 39 -2.3 -1.2 -0.6 -3.3 -4.7 -1.2 -1.0 -0.6 -1.3 -2.7 -1.5 -3.1 -5.9 -3.2 -4.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.55 1.42 1.60 1.73 1.95 0.82 43.62 42.19 1.43 44.06 42.70 1.36 -0.07 10 -4.51-4.91-4.19-4.44-3.86-5.45 48.40-4.77 48.67-4.61 0.16 38 -1.08-1.21-1.17-0.94-0.66-1.59 44.93-1.30 45.19-1.13 0.17 39 -2.27-2.02-2.47-2.13-1.87-3.09 45.89-2.26 46.50-2.44 -0.18 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.28 2.04 2.12 2.10 1.01 2.37 1.69 1.40 1.40 10 1.97 1.95 1.08 1.80 1.32 1.22 38 2.21 2.29 0.92 1.81 1.31 1.42 39 2.43 2.45 0.86 1.98 1.20 1.39 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.96(F 9 - 42.70)(1.40) + 44.06 0.95(F 10 - 48.67)(1.32) + 44.06 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 6 24 0.920 0.890 0.881 0.854 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 51.5 50.7 55.4 54.7 52.7 52.8 51.8 54.1 57.0 52.3 51.8 51.3 51.1 48.7 49.1 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3 cd 24 48.6 46.3 54.7 53.7 54.5 51.7 49.6 51.0 55.6 50.6 49.3 50.5 50.7 47.5 48.5 S- 9 1.7 2.4 1.8 2.0 0.7 1.8 1.8 1.9 1.9 2.3 2.0 0.7 -0.5 -0.5 0.3 S- 38 -0.6 0.3 -1.0 -0.7 -2.8 -0.4 -1.2 -0.1 -1.0 -0.5 0.0 -1.5 -3.3 -2.8 -2.2 S- 6 3.1 5.5 2.7 2.8 0.8 3.4 3.8 3.8 2.5 3.5 3.5 2.8 1.9 2.1 1.8 S- 24 2.8 4.3 0.7 1.1 -1.8 1.1 2.2 3.1 1.4 1.7 2.4 0.8 0.4 1.3 0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.41 1.07 1.56 1.55 1.80 0.88 52.36 51.18 1.17 52.32 50.97 1.35 0.18 38 -1.31-1.71-1.31-1.11-0.88-1.61 54.02-1.67 53.51-1.19 0.47 6 3.12 2.83 3.44 3.35 3.25 2.58 49.44 2.92 49.40 2.92 0.00 24 1.73 1.84 1.93 1.77 1.75 1.22 50.60 1.75 50.85 1.47 -0.28 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.83 1.68 1.82 1.70 1.07 2.18 1.83 1.19 1.11 38 1.82 1.74 1.05 2.05 1.06 1.01 6 1.97 1.60 1.14 2.40 0.91 0.80 24 2.18 1.79 1.02 2.65 0.82 0.81 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.96(F 9 - 50.97)(1.19) + 52.32 0.94(F 38 - 53.51)(1.06) + 52.32 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 10 11 0.885 0.840 0.834 0.826 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.8 61.9 63.0 63.8 62.3 61.0 61.0 61.8 65.5 60.2 62.2 61.8 59.4 60.1 57.1 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 S- 9 1.8 2.4 1.8 2.0 1.2 1.7 2.5 2.5 1.8 2.3 2.2 1.2 -0.3 -0.2 0.9 S- 38 -0.5 0.1 -0.9 -0.8 -2.1 -1.2 0.2 0.2 -1.2 -0.3 0.5 -1.0 -3.1 -2.3 -1.3 S- 10 -3.4 -2.7 -3.7 -2.9 -3.1 -2.8 -3.6 -3.2 -2.4 -2.5 -3.2 -4.5 -5.6 -5.2 -4.6 S- 11 -0.2 0.5 -0.1 -0.4 -1.1 -0.4 0.5 -0.3 0.5 0.1 0.3 -0.9 -3.0 -2.4 -1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.42 0.77 1.56 1.58 2.00 1.12 61.54 60.56 0.98 61.40 59.81 1.59 0.61 38 -1.32-2.17-1.35-1.20-0.62-1.27 63.55-2.00 62.31-0.92 1.08 10 -3.60-4.45-2.98-3.46-3.21-4.01 65.60-4.05 64.96-3.56 0.49 11 -1.02-1.87-1.08-0.79-0.36-1.00 63.26-1.72 61.96-0.57 1.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.53 1.51 1.44 1.56 0.92 1.93 1.75 1.10 1.19 38 1.68 1.64 0.88 1.97 0.98 1.12 10 1.42 1.39 1.04 1.58 1.22 1.18 11 1.51 1.45 1.00 1.64 1.17 1.18 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.94(F 9 - 59.81)(1.10) + 61.40 0.92(F 38 - 62.31)(0.98) + 61.40 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 10 39 0.848 0.823 0.822 0.771 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.2 68.8 68.3 71.0 71.1 68.9 68.6 69.2 72.0 67.4 70.5 67.7 67.6 66.4 66.1 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5 S- 9 2.0 2.6 1.7 2.5 1.5 1.7 2.2 2.8 1.6 2.3 2.2 1.1 0.4 -0.1 1.6 S- 7 -0.8 0.3 -0.8 -0.1 0.0 -1.2 -0.5 0.3 -0.2 0.5 0.0 -2.1 -1.9 -1.7 -1.4 S- 10 -3.2 -2.6 -3.5 -3.0 -2.9 -2.4 -3.3 -3.0 -2.8 -2.7 -3.4 -4.6 -4.6 -5.2 -3.6 S- 39 -3.3 -2.2 -3.4 -3.1 -3.5 -3.5 -1.5 -1.3 -2.9 -2.5 -2.3 -3.4 -4.2 -5.4 -3.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.46 0.66 1.76 1.52 2.02 1.29 68.27 67.31 0.96 68.78 67.04 1.73 0.78 7 -0.75-1.31-0.36-0.80-0.39-0.97 69.39-1.13 69.42-0.65 0.48 10 -3.43-4.29-2.78-3.27-3.09-3.83 72.15-3.88 72.15-3.37 0.50 39 -3.43-4.16-3.04-3.72-2.80-3.43 72.21-3.95 71.83-3.05 0.89 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.48 1.42 1.34 1.45 0.93 1.66 1.53 1.09 1.18 7 1.20 1.07 1.25 1.38 1.20 0.96 10 1.30 1.15 1.17 1.40 1.19 1.02 39 1.51 1.60 0.84 1.61 1.04 1.24 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.92(F 9 - 67.04)(1.09) + 68.78 0.91(F 7 - 69.42)(1.20) + 68.78 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 11 0.783 0.745 0.721 0.669 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.3 72.6 70.7 73.6 74.9 73.8 72.4 72.9 73.5 71.1 74.4 72.3 72.4 70.1 70.6 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 S- 10 -2.8 -2.6 -3.7 -3.0 -2.7 -2.2 -3.5 -2.8 -3.2 -2.9 -2.8 -4.0 -4.1 -4.6 -3.4 S- 9 1.9 2.1 1.6 2.6 2.2 1.7 1.6 2.7 1.6 2.5 2.3 1.0 0.1 0.4 1.5 S- 7 -1.0 -0.5 -1.3 0.2 0.2 -1.1 -0.8 -0.2 -1.1 0.4 0.1 -1.7 -2.0 -2.2 -1.5 S- 11 0.5 0.8 -0.5 0.0 1.2 1.2 0.8 0.8 0.9 0.9 0.5 0.2 -0.7 -1.4 -0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -3.49-4.26-2.84-3.73-3.09-3.57 71.65 75.44-3.79 72.58 75.81-3.23 0.56 9 1.44 0.69 1.94 1.25 1.94 1.33 70.51 1.14 70.87 1.71 0.57 7 -1.19-1.73-0.91-1.49-0.64-1.15 73.07-1.42 73.42-0.84 0.58 11 -0.16-1.30 0.52-0.26 0.23 0.07 72.39-0.74 72.21 0.36 1.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.32 1.07 0.81 0.93 0.87 1.38 1.08 1.28 1.47 9 1.17 1.06 0.76 1.25 1.10 1.44 7 1.05 0.92 0.88 1.18 1.16 1.32 11 1.21 1.17 0.69 1.06 1.30 1.87 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.88(F 10 - 75.81)(1.28) + 72.58 0.86(F 9 - 70.87)(1.10) + 72.58 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 39 11 0.820 0.820 0.779 0.776 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.2 69.3 70.1 72.1 72.9 72.4 70.3 71.4 72.2 70.4 73.4 68.9 70.7 68.0 69.3 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 S- 10 -3.2 -3.3 -3.3 -2.7 -3.3 -2.2 -3.8 -2.9 -3.2 -3.4 -3.0 -4.7 -4.5 -5.1 -4.2 S- 9 2.0 1.8 1.6 2.3 2.1 1.7 1.2 2.3 2.0 2.1 2.2 0.6 0.3 0.4 1.5 S- 39 -4.8 -3.2 -2.9 -2.9 -2.1 -2.8 -2.6 -2.2 -2.7 -1.4 -1.4 -3.2 -4.4 -4.2 -3.7 S- 11 0.3 0.1 0.4 -0.1 1.0 0.9 0.1 0.3 0.7 0.3 0.6 -0.5 -1.2 -1.7 -0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -3.72-4.16-3.18-4.19-3.15-4.00 70.60 74.33-3.74 70.91 74.43-3.52 0.22 9 1.36 0.85 1.77 1.03 1.83 1.30 69.36 1.24 69.30 1.61 0.37 39 -3.30-4.08-2.69-3.64-3.02-3.00 74.18-3.58 73.87-2.96 0.62 11 -0.38-1.20 0.18-0.68 0.17-0.37 71.32-0.72 70.88 0.04 0.76 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.56 1.24 0.97 1.12 0.87 1.55 1.08 1.43 1.65 9 1.38 1.36 0.71 1.21 1.28 1.80 39 1.60 1.40 0.69 1.45 1.07 1.55 11 1.34 1.14 0.85 1.11 1.39 1.65 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.91(F 10 - 74.43)(1.43) + 70.91 0.91(F 9 - 69.30)(1.28) + 70.91 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 10 13 0.822 0.815 0.803 0.799 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 65.5 65.9 65.2 65.6 64.1 63.5 64.2 65.5 66.2 62.9 65.6 61.1 64.4 62.3 62.1 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 S- 11 -0.2 -0.3 -0.4 -0.2 0.6 0.4 0.1 0.2 1.0 -0.2 0.5 -2.3 -1.1 -1.8 -1.8 S- 9 1.8 1.6 1.5 2.3 2.2 2.1 1.6 2.3 2.7 1.9 2.3 -0.2 0.2 0.2 0.9 S- 10 -3.5 -3.4 -3.7 -3.0 -3.1 -2.7 -3.9 -3.1 -2.2 -3.3 -3.1 -5.2 -4.7 -5.0 -5.0 S- 13 -5.2 -5.2 -5.1 -4.9 -4.8 -4.8 -5.1 -5.7 -3.5 -5.0 -4.9 -6.7 -6.2 -6.4 -7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.75-1.33-0.37-1.11-0.14-0.82 64.43 65.38-0.96 64.26 64.65-0.39 0.57 9 1.32 1.02 1.55 0.94 1.88 1.16 63.15 1.28 62.70 1.56 0.29 10 -3.91-4.16-3.57-4.55-3.25-4.07 68.22-3.79 67.92-3.66 0.14 13 -5.68-6.23-5.29-6.10-5.13-5.67 70.25-5.82 69.62-5.36 0.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.62 1.43 1.18 1.27 0.93 1.52 1.04 1.46 1.57 9 1.50 1.33 0.89 1.10 1.38 1.56 10 1.42 1.31 0.90 1.07 1.42 1.58 13 1.44 1.41 0.84 1.10 1.38 1.64 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.91(F 11 - 64.65)(1.46) + 64.26 0.90(F 9 - 62.70)(1.38) + 64.26 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 11 13 10 0.879 0.864 0.860 0.859 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 55.5 55.7 58.9 56.6 54.8 53.2 55.2 57.6 56.8 54.4 55.3 54.0 52.6 51.7 52.3 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 S- 9 1.9 1.8 1.4 1.8 2.1 2.1 1.8 2.5 3.3 1.4 1.6 -0.2 0.6 0.5 0.9 S- 11 -0.3 -0.8 -1.1 -2.0 0.3 -0.5 -0.1 0.4 0.8 -0.7 -0.6 -2.3 -1.5 -2.4 -1.8 S- 13 -5.4 -5.8 -6.0 -6.5 -5.1 -5.7 -5.9 -5.2 -3.6 -5.8 -6.2 -6.9 -7.1 -7.3 -7.2 S- 10 -4.0 -3.8 -4.2 -4.1 -3.7 -3.3 -4.5 -3.1 -2.4 -4.2 -4.8 -5.5 -5.6 -5.6 -5.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.38 1.35 1.36 1.08 1.87 1.17 55.11 53.73 1.38 54.97 53.41 1.55 0.18 11 -1.02-1.17-0.87-1.41-0.51-1.21 56.22-1.11 55.81-0.84 0.27 13 -6.19-6.46-5.97-6.59-5.65-6.31 61.38-6.27 60.96-5.99 0.28 10 -4.33-4.41-4.08-4.77-3.73-4.81 59.27-4.17 59.25-4.29 -0.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.68 1.66 0.77 0.90 0.85 1.96 1.63 1.20 1.41 11 1.62 0.81 0.95 1.72 1.14 1.21 13 1.52 0.79 0.97 1.60 1.22 1.27 10 1.52 0.78 0.98 1.55 1.27 1.30 Suggested regression eqns from two most closely related CDs ( 9 and 11): 0.94(F 9 - 53.41)(1.20) + 54.97 0.93(F 11 - 55.81)(1.14) + 54.97 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 11 0.928 0.921 0.915 0.906 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.2 49.5 47.9 46.1 45.5 43.5 41.0 48.9 47.3 44.6 43.8 45.9 41.1 42.3 42.9 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 S- 9 2.0 1.8 2.1 1.7 2.0 2.3 1.6 2.2 2.9 1.8 0.9 -0.5 0.1 -0.3 0.7 S- 10 -4.5 -3.8 -4.6 -4.9 -3.5 -3.5 -5.5 -4.2 -3.4 -4.4 -5.6 -6.2 -6.4 -6.3 -5.6 S- 13 -6.5 -6.0 -6.9 -7.2 -5.3 -6.1 -8.3 -5.9 -5.1 -6.0 -7.0 -7.6 -8.5 -8.1 -7.0 S- 11 -1.1 -0.9 -1.4 -2.5 -0.5 -0.4 -1.8 -0.3 0.1 -0.7 -1.9 -3.1 -2.7 -3.5 -1.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.37 1.56 1.24 1.23 1.86 0.79 44.68 43.22 1.47 44.98 43.56 1.42 -0.05 10 -4.79-4.65-4.80-5.00-4.25-5.44 49.29-4.61 49.82-4.84 -0.23 13 -6.89-6.99-7.05-6.95-6.47-7.05 51.66-6.98 51.75-6.77 0.21 11 -1.54-1.46-1.69-1.61-1.13-1.92 46.20-1.52 46.46-1.48 0.04 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.11 2.15 1.47 1.54 0.95 2.56 2.26 1.13 1.19 10 1.96 1.43 1.03 2.11 1.21 1.18 13 1.84 1.31 1.12 2.05 1.25 1.12 11 2.00 1.44 1.02 2.26 1.13 1.12 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.96(F 9 - 43.56)(1.13) + 44.98 0.96(F 10 - 49.82)(1.21) + 44.98 Station#1859 DALE ENTERPRISE , va 4220805 lat/lon 78.93 38.45 7M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 13 0.941 0.934 0.918 0.918 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.6 38.7 39.5 37.3 38.0 40.0 36.3 41.3 40.0 39.2 33.8 40.1 32.2 34.7 35.9 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 S- 9 2.4 2.9 2.9 1.4 1.5 2.0 2.0 1.7 2.8 1.2 0.1 0.3 -0.5 -0.5 -1.4 S- 10 -4.5 -3.9 -4.7 -5.2 -4.1 -3.4 -5.4 -4.7 -4.6 -5.0 -7.4 -6.2 -7.0 -7.1 -7.7 S- 38 1.2 1.5 1.5 -0.4 -0.7 -0.6 -0.1 0.2 0.9 -0.2 -1.1 -1.4 -2.1 -2.3 -3.6 S- 13 -7.6 -6.4 -7.0 -8.2 -6.4 -6.4 -8.5 -6.7 -6.5 -6.9 -9.4 -7.6 -9.7 -9.9 -8.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.41 1.57 1.29 1.58 1.96 0.30 36.94 35.43 1.51 37.50 36.24 1.25 -0.26 10 -5.30-5.12-5.43-5.35-4.52-6.43 42.12-5.18 42.90-5.40 -0.22 38 -0.47-0.57-0.59-0.07 0.02-1.40 37.37-0.43 37.97-0.47 -0.04 13 -7.93-8.18-8.19-7.86-7.13-8.42 45.11-8.17 45.23-7.73 0.44 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.58 2.64 2.16 2.20 0.98 2.59 2.10 1.23 1.25 10 2.36 1.90 1.14 1.95 1.33 1.17 38 2.70 2.22 0.97 2.24 1.15 1.19 13 2.24 1.95 1.11 1.65 1.57 1.42 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 36.24)(1.23) + 37.50 0.97(F 10 - 42.90)(1.33) + 37.50 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 41.06 44.10 50.13 58.13 66.92 73.65 77.51 76.41 71.33 60.21 50.00 43.80 1952 43.45 45.67 50.35 58.17 68.69 75.69 78.68 75.33 67.07 57.90 48.49 44.66 1953 43.23 46.63 51.47 60.81 69.15 76.06 77.84 76.34 70.47 60.86 50.74 43.66 1954 42.69 45.62 53.33 58.76 67.43 72.32 77.03 76.56 71.12 60.50 48.76 40.69 1955 39.52 43.99 51.78 60.36 66.54 72.83 76.11 76.46 69.24 59.07 47.50 40.48 1956 39.30 43.23 49.34 56.99 65.62 72.71 76.02 74.23 68.79 59.21 52.59 44.96 1957 43.86 43.46 51.35 59.37 69.07 74.86 77.02 75.74 67.85 59.37 49.86 43.15 1958 38.03 38.21 45.88 56.81 66.42 73.19 76.24 75.25 68.22 59.99 48.98 42.35 1959 39.34 43.21 51.11 60.22 69.47 74.83 77.82 76.04 70.50 59.72 50.22 43.06 1960 40.55 40.45 47.57 56.12 67.00 71.81 75.90 74.44 69.18 59.98 48.75 40.06 1961 37.89 43.58 50.25 56.95 63.51 71.13 75.00 75.09 68.65 60.41 49.39 42.17 1962 39.45 41.20 47.90 57.16 66.49 72.52 73.88 72.40 68.14 58.94 48.79 40.26 1963 36.35 41.73 50.15 60.02 66.86 72.02 75.79 74.27 68.63 59.55 47.40 40.08 1964 36.09 41.75 48.41 58.68 67.28 73.43 75.33 73.16 65.67 57.84 49.12 43.57 1965 39.78 40.96 47.11 58.08 67.20 74.18 75.78 75.93 69.42 60.48 49.97 42.43 1966 38.27 40.52 46.81 56.01 64.32 73.06 76.49 74.92 67.11 58.20 48.38 42.86 1967 38.57 42.34 49.33 57.75 65.49 70.16 74.48 72.02 65.86 55.64 48.19 40.21 1968 36.81 39.19 47.30 56.98 64.87 71.84 77.18 75.98 69.76 59.57 48.63 40.03 1969 37.03 39.08 47.05 55.54 66.37 72.72 75.82 73.64 67.32 57.61 46.96 37.97 1970 35.67 38.70 48.18 57.75 67.75 73.82 76.66 76.77 71.35 62.22 51.50 42.78 1971 39.27 39.87 46.60 54.95 65.04 72.28 76.02 75.04 70.56 61.85 53.74 46.29 1972 42.66 43.04 47.79 56.66 63.76 70.63 74.61 74.50 67.21 57.51 48.99 43.16 1973 40.23 42.87 49.48 57.99 66.25 73.12 77.76 76.78 70.97 61.91 50.80 45.87 1974 42.68 46.35 50.32 58.67 64.93 71.00 73.98 73.02 65.84 56.63 47.27 42.06 1975 39.85 41.64 46.68 55.40 65.46 72.66 76.22 74.78 69.87 60.86 50.43 41.26 1976 39.52 44.07 52.53 58.53 65.49 71.57 75.17 73.31 64.98 54.17 43.68 34.99 1977 33.11 38.95 50.63 60.92 67.47 74.19 77.76 78.05 69.41 59.60 47.78 39.53 1978 33.72 36.18 45.21 55.50 65.59 71.96 77.19 76.47 69.47 60.09 49.59 42.56 1979 36.42 39.33 47.25 58.06 65.08 70.99 74.96 74.51 68.15 59.65 50.16 43.85 1980 38.47 39.72 46.25 56.59 65.98 73.17 77.65 78.42 70.28 58.68 46.82 39.09 1981 37.59 39.61 48.86 56.27 67.58 73.71 77.55 74.23 66.49 57.51 46.69 38.09 1982 35.95 39.88 48.44 57.88 66.70 74.64 76.30 74.81 68.00 59.56 51.59 44.13 1983 40.67 41.66 47.43 55.83 64.40 72.96 77.77 76.88 70.12 59.82 48.50 40.03 1984 38.60 41.25 48.03 55.09 65.45 72.56 76.43 73.64 70.46 60.11 53.32 42.31 1985 40.31 41.29 50.96 60.36 68.91 74.03 76.45 74.66 69.57 63.43 52.51 43.87 1986 38.59 42.19 50.35 58.33 67.99 75.06 78.28 76.31 69.53 61.19 50.88 41.86 1987 37.80 40.25 46.62 56.77 66.41 75.50 79.18 77.97 68.54 58.86 48.96 41.71 1988 38.05 39.91 48.34 57.07 65.74 73.27 78.25 76.59 67.90 56.86 47.18 43.16 1989 40.75 43.62 48.72 56.27 66.02 73.20 77.38 75.25 68.89 60.12 47.04 42.01 1990 41.10 48.56 53.53 60.03 67.46 74.76 78.19 76.53 69.75 60.98 52.49 45.25 1991 42.64 44.46 51.35 60.41 68.58 75.32 77.30 75.97 68.84 58.83 49.93 43.73 1992 42.62 43.72 49.16 55.15 62.95 70.59 74.50 74.17 66.18 58.07 47.93 42.68 1993 39.19 40.73 45.54 55.40 65.59 74.54 77.95 77.34 68.96 58.95 47.63 39.37 1994 36.68 40.22 49.75 57.20 66.65 73.20 77.29 74.40 66.54 58.41 50.47 44.56 1995 40.57 42.71 49.26 58.47 66.07 72.97 77.25 75.90 69.51 57.72 46.87 38.80 1996 37.13 39.32 46.22 55.44 66.25 73.44 76.39 74.55 67.94 57.34 48.06 41.18 1997 41.25 44.60 49.97 55.91 62.54 70.73 75.36 74.84 68.13 57.88 47.82 40.61 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 9 38 0.954 0.953 0.950 0.938 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.7 38.6 40.3 38.6 37.8 38.0 40.8 41.1 42.6 42.6 39.2 36.7 40.6 37.1 41.3 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 S- 13 -2.6 -3.2 -3.2 -4.0 -3.7 -2.9 -3.5 -3.5 -3.2 -3.4 -3.7 -4.4 -3.1 -3.7 -3.5 S- 10 0.0 0.1 0.0 -0.4 -0.5 -0.1 0.1 0.2 -0.8 -0.1 -1.2 -0.9 -0.9 -0.1 -0.5 S- 9 5.5 7.2 7.5 7.1 5.4 5.9 6.2 7.4 6.3 6.9 5.3 6.4 6.4 6.5 5.8 S- 38 2.6 6.1 6.7 5.1 2.8 4.1 4.1 5.3 5.0 4.4 3.7 4.6 4.4 4.6 3.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.40-2.82-3.27-3.96-3.41-3.57 40.04 42.99-2.95 39.73 43.16-3.43 -0.48 10 -0.08 0.73 0.15-0.71-0.10-0.64 39.40 0.64 40.07-0.34 -0.99 9 6.81 7.33 7.21 6.54 6.55 6.23 32.62 7.42 33.35 6.38 -1.04 38 4.80 5.02 5.15 4.78 4.56 4.37 34.82 5.22 35.24 4.49 -0.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.47 2.54 2.37 2.78 0.85 1.82 1.66 1.09 1.28 10 2.48 2.49 0.95 1.82 1.00 1.05 9 2.89 2.99 0.79 1.85 0.98 1.24 38 3.07 3.13 0.76 2.04 0.89 1.17 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.98(F 13 - 43.16)(1.09) + 39.73 0.98(F 10 - 40.07)(1.00) + 39.73 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.960 0.940 0.932 0.920 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.7 41.3 41.3 42.2 40.3 39.9 43.6 48.6 44.5 43.7 40.7 40.2 42.7 39.3 44.6 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -0.1 0.6 0.4 -0.3 0.0 0.1 0.1 0.3 -0.5 0.1 -0.9 -0.6 -0.2 -0.1 0.4 S- 13 -2.7 -3.8 -3.4 -4.5 -3.7 -3.2 -4.1 -2.8 -3.6 -3.4 -4.0 -5.1 -3.3 -4.1 -4.3 S- 9 5.6 7.4 7.8 6.3 4.9 6.0 5.5 6.6 6.5 6.7 5.5 7.1 6.7 6.5 6.7 S- 38 2.9 5.4 6.5 3.5 1.5 4.0 3.2 4.3 4.4 4.1 3.6 5.3 4.5 4.6 4.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.30 1.13 0.54-0.21 0.14-0.25 42.92 41.89 1.03 42.30 42.35-0.05 -1.08 13 -3.50-2.75-3.21-4.04-3.66-3.97 45.76-2.84 46.03-3.73 -0.89 9 6.94 7.82 7.18 6.70 6.36 6.51 35.21 7.71 35.92 6.38 -1.33 38 4.66 5.29 4.94 4.63 3.94 4.45 37.64 5.28 38.13 4.17 -1.11 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.48 2.45 2.16 2.14 1.01 2.33 2.25 1.04 1.03 13 2.57 2.47 0.87 2.21 1.05 1.21 9 2.79 2.46 0.88 2.36 0.98 1.12 38 3.03 2.71 0.80 2.54 0.92 1.15 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.98(F 10 - 42.35)(1.04) + 42.30 0.97(F 13 - 46.03)(1.05) + 42.30 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 12 0.945 0.920 0.905 0.893 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 47.4 48.0 51.0 50.3 46.6 48.3 48.7 53.5 51.3 49.2 45.5 49.8 49.3 46.2 50.0 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 S- 10 0.1 0.4 0.6 0.8 0.3 0.8 0.7 1.2 0.1 0.0 -0.6 -0.5 0.7 -0.2 0.6 S- 13 -2.7 -3.3 -2.8 -3.9 -3.4 -2.8 -3.5 -1.9 -3.5 -3.3 -3.5 -4.2 -3.3 -3.8 -3.7 S- 9 5.5 6.6 7.3 6.2 4.7 6.4 6.6 7.3 6.1 6.0 5.6 6.2 7.1 6.4 6.6 S- 12 -5.0 -6.0 -5.0 -6.2 -5.2 -4.8 -6.0 -4.6 -6.1 -5.6 -6.2 -7.0 -5.7 -6.5 -6.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.72 1.36 1.07 0.35 0.60 0.02 49.74 48.40 1.35 49.02 48.67 0.34 -1.00 13 -3.05-2.25-2.96-3.45-3.14-3.62 52.13-2.38 52.32-3.30 -0.92 9 6.78 7.70 6.86 6.52 6.41 6.29 42.19 7.55 42.70 6.32 -1.24 12 -5.39-4.45-5.24-5.79-5.46-6.24 54.41-4.67 54.77-5.76 -1.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.04 1.97 1.95 1.95 1.00 2.04 1.80 1.14 1.14 13 1.96 2.04 0.96 1.92 1.07 1.11 9 2.04 2.10 0.93 1.69 1.21 1.30 12 1.96 1.90 1.03 2.02 1.01 0.98 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 48.67)(1.14) + 49.02 0.96(F 13 - 52.32)(1.07) + 49.02 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 12 0.920 0.903 0.867 0.865 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 55.8 55.1 60.4 58.3 56.8 57.1 56.3 60.0 60.4 55.2 55.4 57.2 58.5 55.4 55.9 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 S- 10 0.4 0.8 1.2 0.6 0.8 1.4 1.0 2.1 0.5 0.0 -0.2 -0.1 1.2 0.5 0.9 S- 13 -2.3 -2.9 -1.5 -2.8 -2.6 -1.9 -2.3 -0.9 -2.4 -2.8 -2.5 -3.2 -3.0 -3.1 -3.1 S- 9 6.1 6.8 6.7 5.7 4.8 6.1 6.3 7.9 5.3 5.2 5.6 6.7 6.9 6.3 7.1 S- 12 -4.3 -5.5 -3.3 -4.6 -3.8 -3.6 -4.6 -3.2 -4.8 -4.8 -4.8 -5.5 -5.1 -5.4 -5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.11 1.66 1.42 0.82 1.03 0.40 58.44 56.76 1.68 57.18 56.44 0.74 -0.93 13 -2.28-1.69-2.28-2.48-2.27-2.87 60.19-1.75 59.67-2.49 -0.74 9 6.50 7.43 6.42 6.16 6.25 6.14 51.18 7.26 50.97 6.21 -1.04 12 -4.19-3.41-4.00-4.50-4.18-5.15 61.92-3.48 61.78-4.59 -1.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.69 1.52 1.42 1.54 0.93 1.84 1.62 1.14 1.23 13 1.53 1.59 0.89 1.57 1.17 1.31 9 1.68 1.70 0.83 1.83 1.00 1.20 12 1.46 1.46 0.97 1.58 1.16 1.20 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 56.44)(1.14) + 57.18 0.95(F 13 - 59.67)(1.17) + 57.18 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.923 0.919 0.904 0.883 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.4 65.4 68.9 68.0 66.4 65.7 66.0 67.5 68.6 63.0 65.6 66.7 66.1 66.3 62.5 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 1.2 0.9 2.2 1.3 1.0 2.0 1.4 2.4 0.7 0.2 0.2 0.3 1.1 1.0 0.8 S- 13 -1.0 -1.2 -0.1 -2.0 -1.7 -0.8 -0.6 -0.4 -1.4 -2.2 -1.9 -1.7 -2.0 -1.8 -1.3 S- 12 -2.6 -3.3 -1.8 -3.0 -2.6 -2.1 -2.9 -2.4 -3.4 -4.0 -3.3 -3.2 -4.1 -3.6 -3.6 S- 9 6.4 5.9 7.7 6.2 5.4 6.4 7.5 8.1 4.8 5.0 5.6 6.0 6.3 6.0 6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.29 1.54 1.47 1.10 1.55 0.61 67.18 65.60 1.58 66.07 64.96 1.11 -0.47 13 -1.48-1.47-1.55-1.62-1.07-1.76 68.64-1.46 67.41-1.34 0.12 12 -2.94-2.53-2.84-3.26-2.66-3.60 69.77-2.59 69.13-3.07 -0.47 9 6.31 6.76 6.01 6.13 6.76 5.74 60.56 6.61 59.81 6.26 -0.35 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.57 1.42 1.47 1.39 1.06 1.75 1.58 1.11 1.05 13 1.50 1.36 1.09 1.66 1.06 0.97 12 1.33 1.16 1.27 1.56 1.13 0.89 9 1.51 1.56 0.94 1.75 1.00 1.06 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 64.96)(1.11) + 66.07 0.96(F 13 - 67.41)(1.06) + 66.07 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 13 0.930 0.878 0.869 0.869 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.0 72.6 74.0 75.1 75.5 73.3 73.2 74.8 75.3 70.6 74.5 73.2 73.0 73.4 70.7 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 10 1.6 1.2 2.2 1.1 1.5 2.0 1.4 2.6 0.6 0.5 0.7 0.9 0.8 1.8 1.0 S- 9 6.8 6.4 7.4 6.5 5.9 6.1 6.8 8.4 4.9 5.5 6.3 6.5 5.8 6.9 6.2 S- 11 4.9 4.9 5.5 4.2 4.4 5.3 6.0 6.1 4.3 3.8 4.2 5.2 4.2 4.3 4.3 S- 13 -0.7 -0.5 0.2 -1.8 -0.3 0.4 0.3 0.2 -0.6 -1.6 -1.6 -0.4 -1.3 -1.2 -0.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.28 1.25 1.20 1.18 1.75 0.90 73.42 72.15 1.27 73.48 72.15 1.33 0.06 9 6.17 6.21 5.74 5.97 6.86 6.02 67.31 6.11 67.04 6.43 0.33 11 4.34 4.03 4.02 4.26 5.05 4.34 69.39 4.02 68.69 4.79 0.76 13 -0.89-1.28-0.96-0.90-0.32-1.06 74.61-1.19 74.11-0.64 0.55 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.44 1.30 1.40 1.15 1.22 1.43 1.40 1.02 0.84 9 1.42 1.45 0.97 1.53 0.93 0.97 11 1.47 1.43 0.98 1.45 0.98 1.00 13 1.48 1.32 1.06 1.49 0.96 0.90 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 72.15)(1.02) + 73.48 0.94(F 9 - 67.04)(0.93) + 73.48 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 11 13 9 0.892 0.824 0.818 0.817 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 77.8 76.4 76.4 78.3 79.2 78.3 77.4 78.2 77.3 74.5 77.9 77.3 77.3 76.4 75.4 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 S- 10 1.7 1.3 2.1 1.6 1.6 2.2 1.5 2.4 0.5 0.5 0.8 1.1 0.7 1.6 1.3 S- 11 5.0 4.7 5.3 4.7 5.5 5.7 5.8 6.1 4.7 4.3 4.1 5.2 4.2 4.9 4.6 S- 13 -0.3 -0.1 0.2 -1.0 0.1 0.8 0.6 0.1 -0.3 -1.3 -1.4 0.3 -0.6 -0.4 -0.2 S- 9 6.4 6.0 7.3 7.3 6.5 6.2 6.6 7.9 5.3 6.0 5.8 6.1 4.9 6.6 6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.21 1.05 0.92 1.22 1.85 0.93 76.40 75.44 0.96 77.20 75.81 1.39 0.43 11 4.55 4.02 4.29 4.69 5.18 4.57 72.39 4.01 72.21 4.98 0.98 13 -0.54-1.13-0.67-0.35 0.01-0.55 77.48-1.08 77.42-0.23 0.86 9 6.14 6.00 5.70 6.20 6.88 5.84 70.51 5.89 70.87 6.33 0.44 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.27 1.07 1.21 0.93 1.30 1.17 1.08 1.09 0.84 11 1.21 1.17 1.03 1.06 1.10 1.07 13 1.24 1.16 1.04 1.16 1.01 0.97 9 1.17 1.06 1.14 1.25 0.94 0.82 Suggested regression eqns from two most closely related CDs ( 10 and 11): 0.94(F 10 - 75.81)(1.09) + 77.20 0.91(F 11 - 72.21)(1.10) + 77.20 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.920 0.885 0.877 0.850 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.9 73.6 74.7 76.3 78.0 76.6 75.3 76.5 76.0 74.2 77.3 74.4 75.9 74.6 74.8 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 S- 10 1.5 1.1 1.2 1.5 1.7 2.0 1.2 2.2 0.6 0.3 1.0 0.8 0.8 1.4 1.4 S- 13 -0.3 -0.5 0.1 -0.9 0.3 0.5 0.3 -0.4 -0.2 -1.2 -1.0 0.0 -0.7 -0.6 -0.6 S- 12 -1.4 -2.1 -2.0 -2.3 -0.9 -1.1 -1.8 -1.7 -2.0 -3.6 -2.0 -1.9 -1.8 -2.2 -2.1 S- 9 6.7 6.2 6.2 6.5 7.1 5.9 6.2 7.4 5.8 5.9 6.2 6.0 5.5 6.9 7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.06 0.86 0.88 1.05 1.59 0.88 75.18 74.33 0.84 75.67 74.43 1.24 0.39 13 -0.59-1.09-0.73-0.41-0.13-0.61 76.22-1.05 76.00-0.34 0.71 12 -1.94-2.02-2.09-1.79-1.65-2.24 77.28-2.11 77.61-1.94 0.17 9 6.14 5.87 5.83 6.27 6.56 6.18 69.36 5.82 69.30 6.36 0.55 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.43 1.24 1.21 1.12 1.09 1.23 1.08 1.14 1.05 13 1.32 1.12 1.09 1.23 1.00 0.92 12 1.09 0.92 1.31 0.97 1.27 0.97 9 1.38 1.36 0.90 1.21 1.02 1.14 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 74.43)(1.14) + 75.67 0.94(F 13 - 76.00)(1.00) + 75.67 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 12 0.944 0.940 0.919 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.1 70.5 69.6 69.5 68.5 67.9 68.9 69.8 68.8 66.2 69.0 66.5 69.5 67.9 68.1 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 S- 13 -0.6 -0.6 -0.7 -1.0 -0.4 -0.3 -0.4 -1.4 -0.8 -1.8 -1.5 -1.3 -1.1 -0.7 -0.9 S- 10 1.1 1.2 0.8 1.0 1.3 1.8 0.8 1.2 0.4 0.0 0.3 0.2 0.4 0.6 1.1 S- 11 4.4 4.2 4.0 3.7 5.0 4.8 4.7 4.4 3.6 3.0 3.9 3.2 4.0 3.9 4.2 S- 12 -2.7 -2.1 -3.5 -3.2 -2.5 -2.6 -3.0 -3.6 -3.1 -4.4 -3.5 -3.6 -3.2 -3.0 -3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -1.08-1.32-1.08-1.15-0.71-1.16 68.95 70.25-1.29 68.72 69.62-0.90 0.39 10 0.69 0.75 0.65 0.40 1.16 0.44 68.22 0.73 67.92 0.81 0.08 11 3.86 3.59 3.85 3.83 4.28 3.69 65.38 3.57 64.65 4.08 0.51 12 -3.01-2.86-2.99-3.06-2.82-3.41 71.85-2.89 71.86-3.14 -0.25 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.59 1.44 1.47 1.41 1.04 1.18 1.10 1.08 1.03 10 1.42 1.31 1.12 1.07 1.11 0.99 11 1.43 1.27 1.16 1.04 1.14 0.98 12 1.30 1.13 1.30 1.01 1.17 0.90 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.97(F 13 - 69.62)(1.08) + 68.72 0.97(F 10 - 67.92)(1.11) + 68.72 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 9 11 0.953 0.947 0.936 0.922 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.8 60.1 63.4 61.2 58.9 56.9 60.1 61.0 58.8 58.1 59.0 58.4 57.7 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 S- 13 -1.1 -1.5 -1.5 -1.9 -1.0 -2.0 -1.0 -1.9 -1.6 -2.2 -2.6 -2.4 -2.0 -1.6 -1.7 S- 10 0.4 0.5 0.3 0.5 0.4 0.4 0.5 0.3 -0.4 -0.5 -1.2 -1.0 -0.5 0.1 -0.1 S- 9 6.2 6.1 5.9 6.3 6.2 5.8 6.7 5.8 5.4 5.1 5.2 4.2 5.7 6.2 6.4 S- 11 4.0 3.5 3.4 2.6 4.4 3.2 4.8 3.8 2.9 2.9 3.0 2.2 3.6 3.3 3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -1.78-1.76-1.66-2.06-1.50-2.00 59.60 61.38-1.78 59.24 60.96-1.72 0.06 10 0.07 0.30 0.23-0.25 0.42-0.51 59.27 0.33 59.25-0.02 -0.34 9 5.79 6.06 5.67 5.61 6.03 5.47 53.73 5.87 53.41 5.82 -0.05 11 3.38 3.53 3.45 3.12 3.64 3.09 56.22 3.38 55.81 3.43 0.04 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.71 1.52 0.87 0.79 1.10 1.68 1.60 1.05 0.95 10 1.52 0.78 1.11 1.55 1.08 0.97 9 1.66 0.90 0.97 1.63 1.03 1.06 11 1.62 0.81 1.08 1.72 0.98 0.91 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.98(F 13 - 60.96)(1.05) + 59.24 0.97(F 10 - 59.25)(1.08) + 59.24 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 56 0.971 0.947 0.946 0.939 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.5 53.3 52.5 50.9 49.0 47.2 47.0 52.5 49.9 47.9 47.6 50.5 46.9 48.1 47.8 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1 S- 13 -2.2 -2.2 -2.3 -2.5 -1.8 -2.4 -2.3 -2.3 -2.5 -2.7 -3.1 -3.0 -2.8 -2.4 -2.1 S- 10 -0.2 0.0 0.0 -0.2 0.0 0.1 0.5 -0.6 -0.8 -1.1 -1.8 -1.6 -0.7 -0.6 -0.7 S- 11 3.2 2.9 3.2 2.2 3.0 3.2 4.3 3.3 2.8 2.6 2.0 1.5 3.0 2.2 3.2 S- 56 -3.8 -4.1 -4.3 -5.2 -4.6 -5.5 -4.5 -3.8 -4.3 -4.5 -5.2 -5.2 -4.7 -4.8 -4.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -2.46-2.20-2.37-2.84-2.29-2.66 49.37 51.66-2.29 49.31 51.75-2.44 -0.15 10 -0.36 0.13-0.12-0.89-0.07-1.05 49.29 0.08 49.82-0.51 -0.59 11 2.89 3.32 2.99 2.51 3.05 2.47 46.20 3.17 46.46 2.84 -0.33 56 -4.35-3.97-4.02-4.65-4.50-4.72 53.39-4.02 53.89-4.59 -0.57 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.97 1.84 1.25 1.31 0.95 2.09 2.05 1.02 1.07 10 1.96 1.43 0.88 2.11 0.99 1.13 11 2.00 1.44 0.86 2.26 0.93 1.07 56 1.82 1.22 1.03 1.96 1.07 1.04 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.99(F 13 - 51.75)(1.02) + 49.31 0.97(F 10 - 49.82)(0.99) + 49.31 Station#1860 DANVILLE , va 4224502 lat/lon 79.38 36.60 17M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 56 0.965 0.937 0.934 0.932 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.0 42.3 43.9 41.9 41.7 43.2 42.0 45.3 43.7 42.7 39.4 44.6 38.8 41.2 40.6 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0 S- 13 -3.2 -2.8 -2.7 -3.5 -2.6 -3.2 -2.9 -2.7 -2.7 -3.4 -3.8 -3.2 -3.0 -3.4 -4.2 S- 10 -0.1 -0.2 -0.4 -0.6 -0.3 -0.3 0.3 -0.8 -0.8 -1.6 -1.8 -1.8 -0.4 -0.6 -2.9 S- 11 2.8 3.5 3.7 1.0 2.3 2.0 3.9 2.2 2.9 1.4 1.9 1.8 2.3 1.9 0.9 S- 56 -4.9 -4.8 -4.8 -6.9 -5.9 -6.4 -5.2 -4.6 -4.4 -5.7 -6.0 -5.4 -5.8 -6.5 -6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.05-2.70-2.92-3.37-2.98-3.40 42.36 45.11-2.76 42.08 45.23-3.16 -0.40 10 -0.43 0.35-0.15-0.86-0.37-1.42 42.12 0.24 42.90-0.82 -1.06 11 2.57 3.21 2.65 2.41 2.52 1.86 39.26 3.10 39.78 2.29 -0.81 56 -5.19-4.77-4.84-5.30-5.48-5.73 47.11-4.75 47.66-5.58 -0.83 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.25 2.24 1.63 1.95 0.83 1.81 1.65 1.10 1.32 10 2.36 1.90 0.86 1.95 0.93 1.08 11 2.43 2.14 0.76 1.87 0.97 1.28 56 2.30 2.03 0.80 1.64 1.11 1.38 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.98(F 13 - 45.23)(1.10) + 42.08 0.97(F 10 - 42.90)(0.93) + 42.08 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 40.22 42.92 48.60 56.11 65.06 71.72 75.74 74.12 68.69 58.18 48.68 42.90 1952 42.24 44.20 48.69 55.99 66.43 73.64 77.22 73.85 66.01 57.13 47.81 43.94 1953 42.32 45.53 49.94 58.93 67.48 74.43 76.04 74.31 67.91 58.28 48.75 42.16 1954 41.29 43.91 51.69 57.25 65.62 70.56 75.67 75.29 69.88 59.67 48.17 39.95 1955 37.95 42.63 50.48 58.90 65.25 71.82 75.92 75.55 68.36 57.36 45.80 38.40 1956 37.63 41.79 48.30 55.76 64.60 71.76 75.21 73.48 67.53 57.96 50.88 43.39 1957 42.28 42.74 50.85 58.63 67.69 72.95 74.93 73.80 65.88 57.79 48.16 41.46 1958 36.57 36.52 44.45 54.38 64.28 71.77 75.33 73.81 66.26 57.98 46.62 39.96 1959 37.02 41.84 49.40 58.20 67.15 72.90 76.33 75.16 69.62 59.15 49.37 42.36 1960 39.73 37.99 45.07 53.21 65.58 70.44 75.16 73.90 68.14 58.48 46.77 37.96 1961 35.57 41.42 48.30 54.67 61.50 69.45 74.12 74.01 67.72 59.34 48.12 40.59 1962 37.31 39.63 46.68 56.19 65.50 71.07 72.56 70.47 65.97 56.68 46.51 38.32 1963 34.40 40.02 47.97 58.06 65.31 71.01 74.23 72.00 66.58 58.62 47.09 39.84 1964 35.53 41.25 47.88 57.36 65.90 71.92 74.46 72.01 64.46 56.79 49.05 43.96 1965 40.57 41.15 47.29 57.14 65.96 72.49 74.44 74.06 67.25 58.23 49.15 41.14 1966 37.53 39.52 46.98 55.95 63.67 71.44 74.53 72.54 64.82 55.77 46.53 42.11 1967 38.38 42.12 48.01 55.93 63.46 68.53 72.94 70.36 64.02 53.87 46.59 39.07 1968 35.71 38.83 46.94 56.56 63.78 70.03 74.66 73.37 67.76 59.18 48.65 40.14 1969 36.01 38.28 47.02 56.41 66.83 72.71 75.16 72.60 65.95 56.90 46.61 37.89 1970 35.42 38.32 47.10 56.52 66.57 72.76 75.25 74.75 69.64 60.96 50.16 41.40 1971 38.29 39.95 46.80 54.69 64.40 71.28 74.71 73.35 69.24 60.74 53.71 46.42 1972 43.28 43.21 48.19 56.68 63.46 69.65 72.99 73.14 66.07 56.83 48.52 43.11 1973 40.62 43.30 49.40 57.61 65.38 72.13 76.14 74.69 68.59 59.99 49.48 45.46 1974 42.61 47.23 51.69 59.68 65.29 70.30 73.23 72.44 66.32 57.78 49.30 44.25 1975 42.24 43.62 48.04 56.18 65.40 72.13 75.45 73.54 68.80 60.53 50.92 42.26 1976 41.03 45.90 54.03 59.07 65.82 71.31 74.45 72.98 65.52 55.19 44.61 35.35 1977 34.22 39.61 51.12 60.30 66.29 72.69 75.89 75.99 67.99 59.16 48.46 40.26 1978 33.99 36.09 44.99 55.70 65.27 71.14 75.20 74.28 67.94 59.35 49.54 42.63 1979 35.91 39.31 46.87 58.20 64.49 69.92 73.26 72.65 66.88 59.04 50.12 43.23 1980 37.81 39.28 46.36 56.87 65.84 72.70 76.67 76.94 69.85 58.96 47.69 39.29 1981 38.02 39.80 49.57 56.52 67.40 72.56 75.62 72.30 65.01 56.81 46.34 38.29 1982 36.03 40.35 48.34 57.29 65.25 72.41 74.11 72.70 66.71 58.97 51.48 43.90 1983 40.10 41.58 47.69 56.07 63.82 71.70 76.59 75.54 69.05 59.05 48.06 39.16 1984 37.85 40.48 48.23 54.83 65.26 71.85 75.34 72.28 68.99 59.14 53.19 42.45 1985 40.65 41.40 51.15 59.86 67.41 72.16 74.36 73.12 67.87 61.93 51.19 43.26 1986 38.03 42.03 49.52 58.08 67.15 74.17 76.60 74.65 67.98 59.83 49.67 41.17 1987 37.49 40.33 46.91 56.94 66.34 74.79 78.22 76.58 67.42 57.99 48.33 40.69 1988 36.61 38.16 46.13 54.69 62.94 70.78 75.51 73.61 64.64 54.14 44.68 40.79 1989 38.01 40.87 45.53 53.39 63.45 70.99 74.98 72.75 66.59 57.83 44.28 39.51 1990 38.56 46.25 50.44 56.42 63.70 71.05 74.90 73.36 67.30 59.40 51.32 43.98 1991 41.03 42.56 48.91 57.85 66.39 73.64 75.65 74.26 67.31 57.68 48.78 42.22 1992 40.33 41.20 46.79 53.52 61.60 69.24 73.20 72.99 65.04 56.64 46.53 41.27 1993 37.59 38.83 43.84 54.01 64.46 73.35 76.79 76.01 67.65 57.78 46.50 37.89 1994 34.83 38.22 48.39 55.81 65.27 71.42 75.46 72.84 65.13 57.53 49.80 44.05 1995 39.47 41.21 46.97 55.90 63.68 71.22 75.71 74.10 67.89 56.54 45.94 37.35 1996 35.26 37.46 44.55 53.65 64.81 71.68 75.14 73.09 66.89 56.21 46.98 39.64 1997 39.57 42.38 47.87 53.56 60.50 68.83 73.73 72.85 66.28 56.48 46.98 39.94 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.938 0.914 0.912 0.909 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.1 37.8 40.7 38.0 37.5 36.6 38.0 38.6 41.0 40.3 37.6 34.8 39.5 35.3 39.6 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 -0.6 -0.7 0.4 -0.9 -0.9 -1.5 -2.7 -2.4 -2.4 -2.4 -2.8 -2.7 -2.0 -2.0 -2.2 S- 9 4.9 6.5 7.8 6.5 5.1 4.5 3.5 4.9 4.7 4.6 3.7 4.5 5.3 4.6 4.1 S- 7 3.9 5.1 5.8 5.7 4.3 3.8 3.0 4.0 3.6 3.9 3.2 4.5 3.7 3.9 2.9 S- 13 -3.2 -3.9 -2.8 -4.5 -4.0 -4.3 -6.3 -6.1 -4.9 -5.6 -5.3 -6.2 -4.2 -5.6 -5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.91-0.65-0.80-0.30-0.91-2.35 38.71 39.40-0.69 38.36 40.07-1.72 -1.03 9 5.97 5.95 6.26 6.94 5.75 4.51 32.62 6.09 33.35 5.01 -1.08 7 4.98 4.97 5.28 5.86 4.70 3.67 33.45 5.26 34.28 4.08 -1.17 13 -4.23-4.20-4.22-3.56-4.22-5.28 42.99-4.28 43.16-4.80 -0.52 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.49 2.48 2.60 2.49 1.04 1.81 1.82 0.99 0.95 9 2.89 2.99 0.87 1.85 0.98 1.12 7 2.52 2.68 0.97 2.00 0.90 0.93 13 2.54 2.78 0.93 1.66 1.09 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 40.07)(0.99) + 38.36 0.96(F 9 - 33.35)(0.98) + 38.36 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.921 0.911 0.892 0.886 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.6 40.5 41.4 42.0 40.3 38.2 40.9 46.3 42.6 41.2 38.8 38.2 41.2 37.5 42.4 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -0.2 -0.2 0.5 -0.5 0.1 -1.7 -2.7 -2.0 -2.4 -2.5 -2.8 -2.6 -1.7 -2.0 -1.8 S- 13 -2.8 -4.6 -3.3 -4.7 -3.6 -4.9 -6.8 -5.1 -5.5 -6.0 -5.9 -7.1 -4.8 -5.9 -6.5 S- 9 5.5 6.6 8.0 6.2 5.0 4.2 2.7 4.2 4.6 4.2 3.6 5.1 5.2 4.6 4.5 S- 38 2.8 4.6 6.6 3.4 1.6 2.3 0.5 2.0 2.5 1.5 1.7 3.3 3.0 2.7 2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.52-0.31-0.32 0.34-0.56-2.24 41.57 41.89-0.32 40.86 42.35-1.49 -1.16 13 -4.32-4.20-4.06-3.49-4.36-5.96 45.76-4.19 46.03-5.17 -0.97 9 6.12 6.37 6.33 7.25 5.67 4.53 35.21 6.36 35.92 4.94 -1.42 38 3.85 3.85 4.09 5.18 3.25 2.46 37.64 3.93 38.13 2.73 -1.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.47 2.45 2.27 2.14 1.06 2.11 2.25 0.94 0.89 13 2.57 2.47 0.92 2.21 0.96 1.04 9 2.79 2.46 0.92 2.36 0.89 0.97 38 3.03 2.71 0.84 2.54 0.83 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 42.35)(0.94) + 40.86 0.95(F 13 - 46.03)(0.96) + 40.86 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 38 13 0.865 0.850 0.848 0.847 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 47.7 48.2 51.2 49.5 46.9 46.1 45.5 50.4 48.9 46.8 43.8 48.4 47.0 44.5 47.9 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 0.4 0.6 0.8 0.0 0.6 -1.4 -2.5 -1.9 -2.3 -2.3 -2.3 -1.8 -1.6 -1.8 -1.5 S- 9 5.8 6.8 7.5 5.4 5.0 4.2 3.4 4.2 3.7 3.6 3.9 4.8 4.8 4.7 4.5 S- 38 3.2 4.2 5.3 2.6 1.4 2.3 0.7 2.1 1.0 0.6 1.8 2.8 1.9 3.0 2.1 S- 13 -2.4 -3.1 -2.6 -4.7 -3.1 -5.0 -6.7 -5.0 -5.9 -5.7 -5.2 -5.6 -5.6 -5.5 -5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.13-0.12 0.24 0.83-0.18-1.97 48.37 48.40-0.02 47.53 48.67-1.14 -1.12 9 5.93 6.21 6.03 7.00 5.63 4.30 42.19 6.18 42.70 4.83 -1.35 38 3.30 3.59 3.26 4.33 3.02 1.89 44.93 3.44 45.19 2.33 -1.11 13 -3.90-3.74-3.79-2.97-3.92-5.61 52.13-3.75 52.32-4.79 -1.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.07 1.97 1.93 1.95 0.99 1.98 1.80 1.10 1.11 9 2.04 2.10 0.92 1.69 1.17 1.27 38 2.21 2.29 0.84 1.81 1.09 1.29 13 1.96 2.04 0.95 1.92 1.03 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.93(F 10 - 48.67)(1.10) + 47.53 0.92(F 9 - 42.70)(1.17) + 47.53 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 7 0.849 0.841 0.823 0.812 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.1 54.8 59.9 58.1 56.9 54.7 53.4 56.4 57.8 53.5 54.0 55.8 55.9 53.7 53.6 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 S- 9 6.3 6.6 6.2 5.4 5.0 3.7 3.4 4.3 2.7 3.5 4.2 5.3 4.3 4.5 4.8 S- 10 0.6 0.5 0.7 0.4 1.0 -1.0 -1.8 -1.5 -2.1 -1.6 -1.6 -1.4 -1.4 -1.3 -1.5 S- 38 4.0 4.5 3.4 2.7 1.5 1.5 0.4 2.2 -0.2 0.7 2.2 3.1 1.5 2.1 2.3 S- 7 4.8 5.6 5.1 4.4 4.2 2.8 2.5 3.5 2.3 3.6 3.1 3.9 3.5 3.6 2.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 5.43 5.60 5.40 6.33 5.27 4.18 56.72 51.18 5.53 55.64 50.97 4.67 -0.86 10 0.04-0.18 0.41 0.99 0.05-1.55 56.76-0.05 56.44-0.80 -0.75 38 2.72 2.82 2.53 3.66 2.59 1.68 54.02 2.69 53.51 2.13 -0.57 7 4.64 4.60 5.17 5.44 4.31 3.26 52.01 4.71 51.92 3.71 -1.00 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.78 1.68 1.68 1.70 0.98 1.88 1.83 1.03 1.04 10 1.52 1.54 1.09 1.62 1.17 1.07 38 1.82 1.74 0.96 2.05 0.92 0.95 7 1.59 1.43 1.17 1.74 1.09 0.93 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.92(F 9 - 50.97)(1.03) + 55.64 0.92(F 10 - 56.44)(1.17) + 55.64 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 7 0.876 0.870 0.854 0.834 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 63.8 65.3 67.4 67.2 66.3 62.9 63.5 63.7 66.4 61.6 64.5 65.3 63.7 64.8 60.5 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 S- 10 0.7 0.7 0.7 0.4 0.9 -0.8 -1.2 -1.3 -1.5 -1.2 -0.9 -1.1 -1.3 -0.5 -1.2 S- 9 5.8 5.7 6.2 5.4 5.3 3.6 5.0 4.3 2.6 3.6 4.5 4.7 3.9 4.5 4.3 S- 13 -1.6 -1.4 -1.6 -2.8 -1.8 -3.6 -3.2 -4.1 -3.6 -3.6 -3.0 -3.0 -4.4 -3.2 -3.4 S- 7 3.7 4.3 4.6 4.1 4.0 2.0 2.3 2.4 1.7 2.6 2.7 2.2 2.7 3.5 1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.06-0.18 0.30 0.76 0.16-1.09 65.55 65.60-0.04 64.45 64.96-0.51 -0.46 9 5.08 5.04 4.84 5.79 5.36 4.03 60.56 4.99 59.81 4.64 -0.35 13 -2.71-3.18-2.72-1.96-2.47-3.46 68.64-3.08 67.41-2.96 0.13 7 3.62 3.68 3.81 4.16 3.68 2.41 61.88 3.67 61.50 2.95 -0.72 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.58 1.42 1.44 1.39 1.04 1.89 1.58 1.19 1.15 9 1.51 1.56 0.92 1.75 1.08 1.16 13 1.50 1.36 1.06 1.66 1.14 1.07 7 1.33 1.27 1.13 1.46 1.29 1.14 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.94(F 10 - 64.96)(1.19) + 64.45 0.93(F 9 - 59.81)(1.08) + 64.45 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 13 0.920 0.887 0.872 0.861 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.7 71.8 72.2 74.2 74.8 70.8 71.0 71.1 73.6 69.2 73.3 71.4 71.2 71.7 68.8 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 10 0.4 0.4 0.4 0.2 0.8 -0.5 -0.8 -1.1 -1.1 -0.8 -0.5 -0.9 -1.0 0.0 -0.9 S- 9 5.5 5.7 5.6 5.7 5.2 3.6 4.6 4.7 3.2 4.1 5.1 4.8 4.0 5.2 4.3 S- 11 3.6 4.2 3.6 3.3 3.7 2.8 3.8 2.4 2.7 2.4 3.0 3.4 2.5 2.6 2.4 S- 13 -1.9 -1.2 -1.7 -2.6 -1.0 -2.1 -1.9 -3.5 -2.2 -2.9 -2.8 -2.1 -3.1 -3.0 -2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.13-0.34-0.14 0.34 0.03-0.73 71.86 72.15-0.28 71.79 72.15-0.36 -0.07 9 4.76 4.62 4.39 5.14 5.13 4.39 67.31 4.55 67.04 4.75 0.20 11 2.93 2.43 2.67 3.43 3.32 2.71 69.39 2.47 68.69 3.10 0.63 13 -2.30-2.87-2.31-1.73-2.04-2.69 74.61-2.75 74.11-2.32 0.42 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.39 1.30 1.25 1.15 1.08 1.60 1.40 1.15 1.06 9 1.42 1.45 0.86 1.53 1.05 1.22 11 1.47 1.43 0.87 1.45 1.10 1.27 13 1.48 1.32 0.95 1.49 1.08 1.14 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 72.15)(1.15) + 71.79 0.94(F 9 - 67.04)(1.05) + 71.79 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 11 9 13 0.924 0.859 0.855 0.848 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.6 75.3 74.4 76.6 78.2 75.5 75.0 74.9 75.7 73.2 76.8 75.5 75.7 75.1 73.7 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 S- 10 0.5 0.2 0.0 0.0 0.7 -0.5 -0.9 -0.9 -1.1 -0.8 -0.4 -0.8 -0.8 0.4 -0.3 S- 11 3.8 3.6 3.2 3.0 4.5 2.9 3.4 2.8 3.0 3.0 2.9 3.4 2.6 3.7 3.0 S- 9 5.2 4.9 5.2 5.6 5.5 3.4 4.2 4.6 3.7 4.7 4.7 4.2 3.3 5.4 4.6 S- 13 -1.5 -1.2 -1.9 -2.7 -0.8 -1.9 -1.8 -3.2 -1.9 -2.6 -2.5 -1.6 -2.1 -1.7 -1.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.28-0.21-0.48-0.11-0.10-0.55 75.16 75.44-0.28 75.48 75.81-0.33 -0.05 11 3.06 2.75 2.88 3.35 3.22 3.09 72.39 2.77 72.21 3.26 0.50 9 4.65 4.74 4.30 4.87 4.93 4.36 70.51 4.65 70.87 4.61 -0.04 13 -2.03-2.39-2.07-1.69-1.95-2.03 77.48-2.32 77.42-1.94 0.38 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.17 1.07 1.08 0.93 1.15 1.21 1.08 1.12 0.97 11 1.21 1.17 0.92 1.06 1.14 1.24 9 1.17 1.06 1.01 1.25 0.97 0.96 13 1.24 1.16 0.93 1.16 1.05 1.13 Suggested regression eqns from two most closely related CDs ( 10 and 11): 0.96(F 10 - 75.81)(1.12) + 75.48 0.93(F 11 - 72.21)(1.14) + 75.48 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.953 0.889 0.876 0.863 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.5 72.3 73.1 74.7 76.6 73.6 72.8 73.4 74.3 73.0 76.0 72.8 74.1 73.1 72.8 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 S- 10 0.2 -0.3 -0.3 -0.2 0.3 -1.0 -1.3 -0.9 -1.1 -0.9 -0.3 -0.8 -1.0 -0.1 -0.6 S- 13 -1.6 -1.8 -1.4 -2.5 -1.1 -2.5 -2.2 -3.6 -1.9 -2.4 -2.3 -1.6 -2.5 -2.0 -2.6 S- 12 -2.8 -3.5 -3.5 -4.0 -2.3 -4.1 -4.3 -4.9 -3.8 -4.8 -3.3 -3.5 -3.6 -3.7 -4.1 S- 9 5.4 4.8 4.6 4.8 5.7 2.9 3.7 4.3 4.1 4.7 4.8 4.5 3.7 5.4 5.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.58-0.49-0.92-0.44-0.41-0.69 73.72 74.33-0.61 73.87 74.43-0.56 0.05 13 -2.24-2.45-2.53-1.90-2.12-2.19 76.22-2.50 76.00-2.14 0.37 12 -3.58-3.37-3.89-3.28-3.64-3.81 77.28-3.56 77.61-3.74 -0.18 9 4.49 4.52 4.03 4.79 4.57 4.61 69.36 4.36 69.30 4.57 0.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.37 1.24 1.30 1.12 1.16 1.26 1.08 1.16 1.00 13 1.32 1.12 1.16 1.23 1.02 0.88 12 1.09 0.92 1.40 0.97 1.30 0.93 9 1.38 1.36 0.96 1.21 1.04 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.98(F 10 - 74.43)(1.16) + 73.87 0.94(F 13 - 76.00)(1.02) + 73.87 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 11 9 0.945 0.903 0.892 0.885 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.1 69.0 67.9 68.0 67.4 64.6 66.6 67.3 67.3 65.0 67.7 65.1 67.9 66.9 66.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 10 0.1 -0.3 -0.9 -0.6 0.2 -1.5 -1.5 -1.3 -1.1 -1.1 -1.0 -1.2 -1.2 -0.4 -0.8 S- 13 -1.6 -2.1 -2.4 -2.5 -1.5 -3.6 -2.7 -3.8 -2.3 -2.9 -2.8 -2.7 -2.7 -1.8 -2.8 S- 11 3.3 2.8 2.3 2.2 3.8 1.5 2.4 2.0 2.1 1.9 2.6 1.7 2.3 2.8 2.4 S- 9 5.4 4.7 4.2 4.7 5.5 3.3 4.0 4.2 3.8 4.0 4.4 3.8 3.7 4.8 5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.80-0.80-1.13-0.56-0.60-0.98 67.35 68.22-0.87 67.07 67.92-0.85 0.02 13 -2.58-2.87-2.85-2.11-2.48-2.58 70.25-2.89 69.62-2.55 0.34 11 2.36 2.04 2.07 2.88 2.51 2.28 65.38 1.97 64.65 2.42 0.45 9 4.43 4.39 3.99 4.93 4.52 4.25 63.15 4.20 62.70 4.37 0.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.51 1.42 1.45 1.31 1.10 1.29 1.07 1.21 1.10 13 1.44 1.41 1.03 1.10 1.17 1.14 11 1.43 1.27 1.14 1.04 1.24 1.09 9 1.50 1.33 1.09 1.10 1.18 1.08 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 67.92)(1.21) + 67.07 0.95(F 13 - 69.62)(1.17) + 67.07 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.923 0.893 0.887 0.879 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.0 59.1 61.9 59.8 58.0 54.1 57.8 59.4 57.7 56.6 57.8 57.5 56.5 56.2 56.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 10 -0.4 -0.4 -1.2 -0.8 -0.4 -2.3 -1.8 -1.3 -1.5 -1.9 -2.4 -1.9 -1.7 -1.1 -1.5 S- 9 5.4 5.2 4.4 5.0 5.3 3.1 4.4 4.3 4.2 3.7 4.1 3.3 4.5 5.1 5.0 S- 7 2.6 3.0 3.4 4.1 3.3 0.7 2.0 2.2 2.0 2.5 2.6 1.4 1.3 2.3 1.8 S- 13 -1.9 -2.4 -3.0 -3.2 -1.8 -4.7 -3.3 -3.4 -2.7 -3.6 -3.7 -3.3 -3.2 -2.8 -3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.08-1.18-1.18-0.59-0.91-1.70 58.11 59.27-1.16 57.88 59.25-1.38 -0.21 9 4.64 4.57 4.26 5.27 4.69 4.28 53.73 4.38 53.41 4.46 0.09 7 2.44 2.24 2.02 3.13 2.67 2.00 55.94 2.17 55.53 2.35 0.18 13 -2.93-3.24-3.07-2.40-2.83-3.19 61.38-3.27 60.96-3.08 0.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.64 1.52 0.85 0.78 1.09 1.78 1.55 1.15 1.06 9 1.66 0.90 0.94 1.63 1.09 1.16 7 1.45 1.11 0.77 1.28 1.40 1.82 13 1.52 0.79 1.07 1.60 1.11 1.04 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 59.25)(1.15) + 57.88 0.95(F 9 - 53.41)(1.09) + 57.88 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.933 0.930 0.913 0.912 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.1 53.2 51.2 49.7 48.3 44.7 44.3 51.3 48.8 46.5 46.5 49.8 45.9 47.0 47.0 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 10 -0.6 -0.1 -1.4 -1.4 -0.6 -2.4 -2.2 -1.8 -2.0 -2.5 -2.9 -2.2 -1.6 -1.7 -1.6 S- 9 5.9 5.5 5.3 5.2 4.8 3.5 4.9 4.6 4.3 3.7 3.6 3.5 4.9 4.3 4.7 S- 7 3.3 4.2 4.4 3.8 3.3 1.2 2.8 2.4 2.3 2.1 1.8 2.0 2.5 2.3 1.8 S- 38 3.8 3.8 3.8 3.6 2.9 0.9 3.0 3.1 2.2 1.8 2.3 1.1 3.4 1.8 2.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.20-1.35-1.11-0.58-1.13-2.07 48.06 49.29-1.23 48.15 49.82-1.67 -0.44 9 4.96 4.85 4.93 5.66 4.98 4.15 43.22 4.85 43.56 4.59 -0.26 7 3.05 2.76 3.12 3.79 3.16 2.13 45.16 2.90 45.46 2.69 -0.21 38 2.89 2.68 2.85 3.60 2.92 2.17 45.35 2.71 45.48 2.67 -0.04 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.06 1.96 1.29 1.43 0.90 2.45 2.11 1.16 1.29 9 2.15 1.54 0.84 2.26 1.09 1.30 7 1.92 1.48 0.87 1.99 1.23 1.42 38 2.17 1.48 0.87 2.20 1.11 1.28 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 49.82)(1.16) + 48.15 0.96(F 9 - 43.56)(1.09) + 48.15 Station#1861 FARMVILLE/2 N , va 4294102 lat/lon 78.38 37.30 26M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 11 0.935 0.922 0.913 0.894 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.2 42.5 43.3 41.2 40.7 40.8 39.5 44.0 42.2 41.3 37.9 44.0 37.3 39.6 39.9 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 S- 10 -1.0 -0.1 -1.0 -1.3 -1.3 -2.6 -2.2 -2.0 -2.3 -3.0 -3.3 -2.3 -1.8 -2.1 -3.6 S- 13 -4.0 -2.6 -3.3 -4.2 -3.7 -5.6 -5.4 -4.0 -4.2 -4.8 -5.3 -3.7 -4.5 -4.9 -4.9 S- 9 5.9 6.7 6.6 5.3 4.3 2.8 5.2 4.5 5.1 3.3 4.2 4.2 4.7 4.5 2.6 S- 11 1.9 3.6 3.1 0.3 1.2 -0.4 1.4 0.9 1.4 0.0 0.4 1.3 0.8 0.4 0.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.21-1.08-0.94-0.51-1.29-2.64 41.09 42.12-1.03 40.89 42.90-2.01 -0.97 13 -3.83-4.14-3.71-3.01-3.90-4.63 45.11-4.03 45.23-4.34 -0.31 9 5.50 5.61 5.78 6.43 5.19 4.09 35.43 5.66 36.24 4.65 -1.01 11 1.80 1.78 1.86 2.77 1.59 0.64 39.26 1.83 39.78 1.11 -0.72 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.33 2.36 1.95 1.90 1.03 1.98 1.95 1.01 0.99 13 2.24 1.95 1.00 1.65 1.20 1.20 9 2.64 2.20 0.89 2.10 0.94 1.06 11 2.43 2.14 0.91 1.87 1.06 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 42.90)(1.01) + 40.89 0.96(F 13 - 45.23)(1.20) + 40.89 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.70 39.28 44.29 51.72 60.58 67.55 71.33 70.05 65.26 54.14 44.91 38.92 1952 39.14 40.84 45.18 52.89 63.45 70.35 72.97 69.29 61.48 52.89 44.43 40.82 1953 39.25 41.87 46.23 55.34 63.92 70.44 71.80 70.03 65.18 56.53 47.26 39.81 1954 38.37 40.29 47.70 52.70 61.64 66.71 72.02 71.81 66.24 55.78 44.22 35.88 1955 34.73 38.67 47.10 55.56 61.52 67.17 70.22 70.69 64.87 54.99 44.09 35.43 1956 34.58 38.45 44.83 52.12 59.97 67.06 70.24 68.89 63.52 53.93 48.61 41.75 1957 41.37 39.63 46.88 54.03 63.36 68.68 70.84 69.57 62.13 54.10 44.95 38.01 1958 32.06 31.92 39.58 50.54 60.05 66.91 69.87 68.44 61.62 53.85 43.58 37.03 1959 33.99 37.29 44.41 53.09 61.51 67.30 70.00 69.40 64.37 54.61 45.63 38.40 1960 35.35 31.94 38.47 46.60 59.96 64.91 69.58 68.71 63.58 54.30 42.24 34.10 1961 32.19 38.50 44.22 49.99 55.88 63.31 68.10 68.58 62.80 54.52 44.13 37.39 1962 35.50 36.87 42.40 50.50 59.80 66.14 68.14 65.92 61.28 51.22 41.18 33.23 1963 29.54 34.70 42.73 52.36 59.26 63.86 66.92 65.47 60.65 52.69 41.31 34.39 1964 30.10 35.15 41.85 51.74 60.83 66.11 68.73 66.27 59.41 51.83 44.02 39.01 1965 35.46 35.87 42.25 51.85 60.38 65.83 67.45 67.23 61.03 52.93 43.84 36.08 1966 32.34 34.19 41.44 50.14 57.72 65.06 67.87 66.51 59.40 51.04 42.30 37.84 1967 33.98 37.77 43.75 51.98 58.22 62.81 66.23 64.04 58.29 49.41 43.01 35.55 1968 31.78 34.08 41.74 51.17 58.28 64.34 68.73 66.91 61.29 52.25 42.33 34.88 1969 31.76 33.63 40.75 49.54 60.07 66.73 69.06 66.97 60.21 51.27 40.93 32.40 1970 30.38 33.91 43.12 51.68 60.00 65.54 68.20 68.64 63.32 54.68 44.73 36.84 1971 34.30 35.00 41.11 48.22 57.94 64.30 67.95 67.08 63.70 55.11 47.52 40.34 1972 37.52 37.23 41.70 49.85 56.53 62.53 65.96 66.35 60.10 51.14 43.58 37.57 1973 35.02 37.56 43.43 51.03 57.49 63.97 68.32 67.62 62.34 54.13 43.99 40.88 1974 38.29 42.41 45.03 52.59 57.94 63.41 66.27 65.46 59.03 50.23 41.59 37.55 1975 36.10 38.14 41.85 50.08 58.68 65.40 68.28 67.00 62.31 53.72 44.75 36.46 1976 35.37 39.35 46.57 51.71 57.73 63.28 65.93 64.07 57.37 47.69 38.49 28.94 1977 27.56 32.72 43.87 53.08 58.74 64.99 67.83 67.92 60.60 52.48 42.18 33.61 1978 27.41 29.77 39.27 49.38 58.37 64.03 68.50 68.22 62.06 54.01 44.21 37.04 1979 31.30 34.57 42.26 52.19 58.34 63.84 67.09 66.49 60.63 52.95 44.63 39.04 1980 34.01 34.78 40.42 50.09 58.54 65.28 69.13 69.54 62.55 52.50 41.97 34.25 1981 32.32 33.90 43.10 50.21 60.53 65.78 69.40 66.63 59.61 51.25 40.73 33.31 1982 31.49 36.09 42.78 50.90 58.42 65.93 67.67 65.87 59.90 52.16 45.27 37.91 1983 34.29 35.48 41.44 49.50 56.80 64.40 69.04 68.06 61.88 52.48 42.06 34.35 1984 32.98 35.90 42.11 48.40 57.88 64.59 68.19 65.56 62.56 52.92 47.20 36.25 1985 34.49 35.39 44.55 53.39 60.51 65.69 67.79 66.19 61.82 56.59 46.77 38.49 1986 34.01 37.87 45.33 52.48 60.71 67.07 69.73 68.46 62.22 54.62 44.91 36.75 1987 32.87 35.47 41.82 51.36 59.97 67.60 70.44 68.89 60.79 51.98 43.42 36.40 1988 32.80 34.60 42.57 50.43 57.63 63.98 68.52 67.73 59.79 50.36 40.94 38.24 1989 36.08 39.64 43.40 49.70 57.44 64.34 68.66 67.07 61.50 52.92 40.48 36.14 1990 36.01 43.28 46.71 52.46 59.27 65.95 69.08 67.79 62.50 54.71 47.12 40.26 1991 37.87 39.49 45.81 54.04 61.27 67.33 68.96 67.82 61.69 52.71 44.79 38.72 1992 37.87 38.93 43.89 49.45 56.41 63.45 66.95 66.83 60.15 52.73 43.18 38.46 1993 34.77 36.27 40.64 49.59 58.82 66.61 69.89 69.44 62.28 53.23 42.18 34.23 1994 31.40 35.43 44.39 51.15 59.70 65.02 69.64 66.85 60.63 53.43 46.07 39.89 1995 35.51 37.53 43.44 51.82 59.31 65.78 69.95 68.32 62.48 51.77 41.76 33.84 1996 32.48 34.59 41.46 50.27 60.00 66.25 68.32 66.37 60.34 50.02 41.95 35.45 1997 35.89 38.91 43.88 49.53 55.36 63.15 66.96 66.62 60.38 50.78 41.34 34.75 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 56 9 0.970 0.962 0.956 0.951 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 34.3 33.0 34.5 34.0 32.9 32.8 36.1 36.0 37.9 37.9 34.8 31.4 35.5 32.5 35.9 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5 cd 56 45.8 43.4 45.6 45.2 44.6 44.3 47.5 47.0 47.9 48.0 45.8 44.0 46.4 43.8 47.4 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 S- 13 -9.0 -8.8 -9.0 -8.6 -8.6 -8.1 -8.2 -8.6 -8.0 -8.1 -8.1 -9.7 -8.2 -8.4 -8.8 S- 11 -4.3 -2.5 -2.1 -1.8 -4.2 -3.0 -2.6 -2.1 -2.6 -2.4 -3.6 -3.9 -2.9 -2.7 -3.6 S- 56-11.5-10.5-11.1-11.2-11.8-11.5-11.4-11.0-10.0-10.1-11.0-12.6-10.9-11.3-11.5 S- 9 -0.9 1.6 1.6 2.5 0.5 0.6 1.6 2.3 1.5 2.1 0.9 1.1 1.3 1.9 0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.37-7.37-8.56-8.87-8.62-8.47 35.22 42.99-7.76 34.62 43.16-8.54 -0.77 11 -2.67-1.68-2.89-2.92-2.87-3.11 37.27-2.05 37.59-2.96 -0.91 56 *****-9.89******************** 45.48***** 45.78***** -0.90 9 1.83 2.78 1.92 1.63 1.35 1.33 32.62 2.60 33.35 1.27 -1.33 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.93 2.54 3.28 2.78 1.18 1.86 1.66 1.12 0.95 11 2.77 3.08 1.07 1.75 1.07 1.00 56 2.68 3.06 1.07 1.49 1.25 1.17 9 2.89 2.99 1.10 1.85 1.01 0.92 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.99(F 13 - 43.16)(1.12) + 34.62 0.98(F 11 - 37.59)(1.07) + 34.62 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 50 56 0.980 0.975 0.970 0.969 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.5 35.9 35.4 37.9 35.5 34.6 39.6 43.3 39.5 38.9 36.3 35.4 37.5 34.6 38.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3 cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2 cd 56 46.3 47.2 46.8 49.6 47.1 45.9 51.3 53.4 50.3 49.5 47.6 48.0 49.1 45.7 52.0 S- 13 -8.9 -9.2 -9.3 -8.8 -8.4 -8.5 -8.0 -8.1 -8.5 -8.2 -8.5 -9.9 -8.5 -8.8-10.0 S- 11 -4.1 -2.9 -2.2 -2.5 -4.4 -3.2 -3.5 -2.2 -2.8 -2.8 -3.7 -3.3 -3.2 -2.8 -4.4 S- 50 -6.4 -4.7 -3.9 -5.8 -7.8 -5.7 -5.2 -4.7 -4.9 -5.2 -5.4 -5.5 -5.9 -5.2 -6.3 S- 56-10.8-11.3-11.4-11.7-11.6-11.3-11.6-10.1-10.8-10.6-11.4-12.5-11.6-11.1-13.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.70-8.19-8.65-9.09-8.72-8.92 37.42 45.76-8.35 37.25 46.03-8.78 -0.43 11 -2.99-2.38-3.09-3.10-3.18-3.30 40.04-2.62 40.46-3.20 -0.59 50 -5.24-4.88-5.17-5.16-5.60-5.48 42.38-4.97 42.76-5.50 -0.54 56 ****************************** 48.28***** 48.65***** -0.54 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.84 2.57 2.91 2.47 1.18 2.35 2.21 1.07 0.90 11 2.71 2.61 1.12 2.27 1.03 0.93 50 3.00 2.97 0.98 2.32 1.02 1.04 56 2.71 2.62 1.11 2.24 1.05 0.94 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.99(F 13 - 46.03)(1.07) + 37.25 0.99(F 11 - 40.46)(1.03) + 37.25 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 56 9 0.954 0.943 0.936 0.932 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.4 42.1 44.5 45.3 41.8 42.6 43.4 46.7 45.8 43.9 40.6 44.4 43.4 41.5 43.9 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2 cd 56 51.9 53.3 55.4 56.4 52.8 53.5 55.2 57.1 57.0 54.6 50.9 56.2 55.1 51.5 56.2 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 S- 13 -8.7 -9.2 -9.2 -8.9 -8.2 -8.5 -8.8 -8.7 -9.0 -8.6 -8.4 -9.6 -9.1 -8.6 -9.8 S- 11 -3.4 -3.4 -2.6 -3.0 -3.8 -3.1 -3.9 -3.0 -3.1 -3.3 -3.1 -3.5 -3.5 -2.2 -4.3 S- 56-10.4-11.2-10.9-11.0-11.0-11.0-11.8-10.4-11.2-10.7-10.3-11.8-11.7-10.1-12.3 S- 9 -0.5 0.7 0.9 1.2 -0.1 0.6 1.2 0.5 0.6 0.7 0.7 0.8 1.2 1.6 0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.76-8.02-8.78-9.17-8.89-9.01 43.87 52.13-8.25 43.43 52.32-8.89 -0.63 11 -3.15-2.26-3.46-3.42-3.41-3.27 46.55-2.68 46.72-3.29 -0.61 56 ****************************** 54.36***** 54.48***** -0.56 9 1.08 1.93 1.03 0.80 0.66 0.90 42.19 1.68 42.70 0.73 -0.96 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.12 1.96 2.59 2.04 1.27 1.70 1.92 0.89 0.70 11 1.92 2.12 1.22 1.76 0.96 0.79 56 1.98 2.07 1.25 1.96 0.87 0.69 9 2.04 2.10 1.23 1.69 1.01 0.82 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.98(F 13 - 52.32)(0.89) + 43.43 0.97(F 11 - 46.72)(0.96) + 43.43 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 10 56 0.929 0.904 0.889 0.883 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 49.5 48.4 53.4 52.5 51.4 50.4 49.7 52.5 54.0 49.5 49.6 51.2 51.8 50.3 49.5 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 56 59.3 59.9 63.0 62.6 61.4 60.9 61.2 62.2 64.4 59.9 58.8 62.0 63.5 59.9 61.1 S- 13 -8.6 -9.6 -8.4 -8.7 -8.0 -8.5 -8.9 -8.5 -8.8 -8.5 -8.3 -9.3 -9.7 -8.3 -9.5 S- 11 -3.0 -3.7 -2.6 -3.0 -3.7 -3.3 -4.0 -2.9 -3.6 -3.4 -2.8 -2.8 -3.8 -2.5 -3.6 S- 10 -6.0 -5.9 -5.8 -5.2 -4.6 -5.3 -5.5 -5.5 -5.9 -5.7 -6.0 -6.1 -5.5 -4.6 -5.5 S- 56 -9.8-11.5 -9.6-10.2-10.1-10.5-11.5 -9.8-10.4-10.4 -9.2-10.8-11.7 -9.6-11.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.61-7.80-8.68-8.99-8.78-8.89 52.07 60.19-8.12 50.90 59.67-8.76 -0.64 11 -3.16-2.12-3.54-3.49-3.44-3.21 54.68-2.61 54.16-3.25 -0.64 10 -5.22-4.46-4.98-5.68-5.48-5.61 56.76-4.70 56.44-5.53 -0.84 56 *****-9.46******************** 61.83-9.77 61.35***** -0.68 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.77 1.53 2.13 1.59 1.34 1.59 1.57 1.01 0.76 11 1.54 1.66 1.28 1.58 1.01 0.79 10 1.52 1.54 1.39 1.62 0.98 0.71 56 1.54 1.59 1.34 1.57 1.01 0.76 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.96(F 13 - 59.67)(1.01) + 50.90 0.95(F 11 - 54.16)(1.01) + 50.90 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 56 10 0.926 0.904 0.888 0.867 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.8 57.9 60.5 60.7 60.0 57.6 57.4 59.3 61.3 56.4 58.8 59.7 59.3 60.0 55.4 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 S- 13 -8.6 -8.8 -8.5 -9.3 -8.1 -8.9 -9.2 -8.6 -8.7 -8.8 -8.7 -8.6 -8.8 -8.1 -8.5 S- 11 -3.2 -3.5 -2.6 -3.6 -3.4 -3.8 -3.1 -2.8 -3.8 -3.8 -3.1 -3.0 -3.1 -2.5 -3.2 S- 56 -9.6-10.0 -9.2-10.1 -9.3-10.6-10.3 -9.7 -9.6-10.2 -9.0 -9.4-10.0 -8.9 -9.7 S- 10 -6.4 -6.7 -6.2 -6.0 -5.4 -6.1 -7.2 -5.8 -6.6 -6.3 -6.6 -6.6 -5.7 -5.3 -6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.50-7.50-8.52-9.09-8.82-8.58 60.81 68.64-7.83 58.74 67.41-8.67 -0.84 11 -3.15-1.92-3.60-3.71-3.35-3.21 63.26-2.46 61.96-3.22 -0.77 56 -9.64-8.57-9.77*****-9.89-9.55 69.76-8.95 68.44-9.71 -0.75 10 -5.73-4.50-5.50-6.38-6.20-6.21 65.60-4.79 64.96-6.22 -1.43 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.87 1.50 1.91 1.36 1.41 1.68 1.66 1.01 0.72 11 1.51 1.45 1.32 1.64 1.02 0.77 56 1.46 1.32 1.45 1.53 1.10 0.75 10 1.42 1.39 1.37 1.58 1.06 0.77 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.96(F 13 - 67.41)(1.01) + 58.74 0.95(F 11 - 61.96)(1.02) + 58.74 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 50 38 0.905 0.897 0.859 0.854 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.4 64.6 65.7 67.1 67.6 64.0 64.3 65.9 67.3 63.5 66.6 65.0 65.8 66.3 63.2 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 50 71.2 71.0 72.3 74.4 75.0 72.4 70.6 71.5 74.4 70.3 73.2 71.0 72.0 72.7 69.8 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 S- 11 -3.7 -3.1 -2.8 -3.8 -3.5 -4.0 -2.9 -2.7 -3.6 -3.4 -3.7 -3.0 -3.0 -2.9 -3.3 S- 13 -9.2 -8.5 -8.2 -9.7 -8.2 -8.9 -8.6 -8.6 -8.5 -8.7 -9.5 -8.5 -8.5 -8.4 -8.3 S- 50 -6.8 -6.4 -6.6 -7.4 -7.4 -8.4 -6.2 -5.5 -7.0 -6.9 -6.6 -6.0 -6.2 -6.4 -6.7 S- 38 -4.8 -3.9 -3.5 -4.7 -4.7 -6.0 -3.8 -2.8 -5.7 -3.8 -3.8 -4.0 -4.0 -3.2 -3.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -3.19-2.06-3.49-3.79-3.39-3.26 66.82 69.39-2.57 65.41 68.69-3.28 -0.70 13 -8.43-7.36-8.48-8.95-8.75-8.66 74.61-7.79 74.11-8.70 -0.91 50 -6.65-5.60-6.91-7.41-6.77-6.54 72.92-6.10 72.11-6.70 -0.59 38 -4.12-2.99-4.45-4.88-4.21-4.04 70.33-3.51 69.57-4.16 -0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.78 1.47 1.94 1.43 1.36 1.36 1.45 0.94 0.69 13 1.48 1.32 1.47 1.49 0.92 0.62 50 1.56 1.61 1.21 1.53 0.89 0.74 38 1.56 1.61 1.20 1.65 0.82 0.68 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.95(F 11 - 68.69)(0.94) + 65.41 0.95(F 13 - 74.11)(0.92) + 65.41 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 50 38 0.878 0.859 0.836 0.823 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.0 68.2 67.8 69.7 70.4 68.5 68.7 69.1 69.0 66.9 69.9 69.6 69.9 68.3 67.0 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 11 -3.8 -3.5 -3.4 -3.8 -3.2 -4.1 -2.9 -3.0 -3.7 -3.2 -4.0 -2.4 -3.1 -3.2 -3.8 S- 13 -9.0 -8.3 -8.5 -9.5 -8.6 -8.9 -8.1 -9.0 -8.6 -8.8 -9.4 -7.4 -7.9 -8.5 -8.6 S- 50 -7.7 -6.7 -7.3 -7.2 -7.0 -8.6 -6.0 -6.6 -7.4 -6.2 -7.4 -5.6 -6.5 -6.5 -7.2 S- 38 -6.2 -5.1 -4.2 -4.3 -4.3 -6.3 -4.2 -3.5 -5.5 -3.4 -4.4 -3.8 -5.3 -4.1 -4.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -3.26-2.11-3.41-3.92-3.55-3.34 69.88 72.39-2.51 68.81 72.21-3.41 -0.90 13 -8.35-7.26-8.36-8.96-8.72-8.46 77.48-7.60 77.42-8.62 -1.02 50 -6.85-5.96-6.91-7.59-7.06-6.69 76.17-6.29 75.74-6.94 -0.65 38 -4.48-3.37-4.64-5.32-4.60-4.47 73.63-3.75 73.43-4.62 -0.88 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.56 1.21 1.70 1.17 1.45 1.02 1.06 0.96 0.66 13 1.24 1.16 1.46 1.16 0.88 0.60 50 1.51 1.63 1.05 1.25 0.81 0.78 38 1.33 1.30 1.31 1.39 0.73 0.56 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.94(F 11 - 72.21)(0.96) + 68.81 0.93(F 13 - 77.42)(0.88) + 68.81 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 50 38 0.884 0.866 0.852 0.836 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.1 65.6 66.2 68.5 68.9 67.7 67.1 67.8 67.8 66.8 69.4 66.8 68.3 66.4 66.6 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 50 76.0 72.5 73.4 76.0 75.6 75.7 73.3 75.0 75.2 72.5 75.6 72.4 75.3 72.8 73.9 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 S- 11 -3.8 -3.6 -3.5 -3.8 -3.0 -3.7 -3.1 -3.3 -3.7 -3.3 -3.3 -2.6 -3.6 -3.3 -3.6 S- 13 -9.1 -8.6 -8.3 -8.7 -8.8 -8.4 -7.9 -9.1 -8.4 -8.6 -8.9 -7.6 -8.2 -8.8 -8.8 S- 50 -7.9 -6.9 -7.2 -7.6 -6.7 -8.0 -6.3 -7.2 -7.4 -5.7 -6.2 -5.6 -7.0 -6.4 -7.3 S- 38 -6.2 -4.8 -4.8 -4.5 -3.9 -5.7 -4.3 -3.7 -4.6 -3.0 -3.3 -3.5 -5.0 -4.0 -4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -3.30-2.17-3.52-3.95-3.56-3.33 68.69 71.32-2.63 67.47 70.88-3.41 -0.78 13 -8.30-7.08-8.50-8.93-8.59-8.46 76.22-7.53 76.00-8.54 -1.00 50 -6.78-5.92-6.98-7.24-7.15-6.51 75.00-6.31 74.36-6.89 -0.58 38 -4.34-3.36-4.58-5.02-4.69-3.94 72.45-3.76 71.83-4.37 -0.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.63 1.34 1.74 1.14 1.52 1.05 1.11 0.94 0.62 13 1.32 1.12 1.55 1.23 0.85 0.55 50 1.63 1.42 1.22 1.36 0.77 0.63 38 1.54 1.41 1.23 1.33 0.78 0.64 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.94(F 11 - 70.88)(0.94) + 67.47 0.93(F 13 - 76.00)(0.85) + 67.47 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 56 50 0.899 0.896 0.869 0.869 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.9 62.6 61.8 62.2 60.8 59.8 61.5 62.5 61.7 60.2 62.3 60.6 62.5 60.3 60.4 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 56 71.5 72.2 71.9 72.0 70.2 70.1 70.5 72.6 71.1 69.4 72.0 69.4 71.3 69.8 70.6 cd 50 69.8 69.2 68.6 69.1 67.0 67.1 67.2 68.7 68.8 65.7 67.6 66.8 68.8 67.0 67.1 S- 11 -3.9 -3.7 -3.8 -3.6 -2.8 -3.3 -2.7 -2.8 -3.5 -3.0 -2.7 -2.8 -3.1 -3.7 -3.5 S- 13 -8.8 -8.5 -8.5 -8.3 -8.1 -8.4 -7.8 -8.6 -8.0 -7.8 -8.2 -7.2 -8.1 -8.3 -8.7 S- 56 -9.6 -9.7-10.1 -9.8 -9.4-10.3 -9.0-10.1 -9.4 -9.2 -9.7 -8.8 -8.9 -9.5-10.2 S- 50 -7.9 -6.6 -6.8 -6.9 -6.2 -7.3 -5.7 -6.2 -7.1 -5.5 -5.3 -6.2 -6.3 -6.7 -6.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -3.18-1.96-3.57-3.77-3.39-3.19 62.89 65.38-2.49 61.40 64.65-3.25 -0.76 13 -8.11-6.87-8.50-8.76-8.38-8.04 70.25-7.35 69.62-8.22 -0.87 56 -9.36-8.15-9.56-9.96-9.77-9.38 71.48-8.58 70.97-9.57 -0.99 50 -6.38-5.30-6.85-6.74-6.68-6.27 68.78-5.88 67.90-6.50 -0.62 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.83 1.43 1.94 1.27 1.53 0.93 1.04 0.90 0.58 13 1.44 1.41 1.38 1.10 0.85 0.61 56 1.41 1.39 1.39 1.00 0.93 0.66 50 1.61 1.45 1.34 1.12 0.83 0.62 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.95(F 11 - 64.65)(0.90) + 61.40 0.95(F 13 - 69.62)(0.85) + 61.40 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 9 0.890 0.865 0.857 0.855 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 52.5 52.9 56.6 54.6 52.0 50.4 52.9 54.7 52.7 52.7 53.2 53.4 51.8 50.0 50.8 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 S- 13 -8.5 -8.6 -8.4 -8.4 -7.9 -8.5 -8.2 -8.1 -7.7 -7.5 -8.3 -7.4 -8.0 -9.0 -8.8 S- 10 -7.0 -6.6 -6.5 -6.1 -6.5 -6.1 -6.7 -6.0 -6.5 -5.8 -6.9 -6.0 -6.4 -7.3 -7.2 S- 11 -3.4 -3.7 -3.5 -4.0 -2.5 -3.3 -2.4 -2.5 -3.2 -2.4 -2.7 -2.8 -2.3 -4.0 -3.4 S- 9 -1.2 -1.1 -0.9 -0.2 -0.7 -0.7 -0.5 -0.4 -0.7 -0.2 -0.5 -0.8 -0.2 -1.1 -0.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.13-6.92-8.52-8.76-8.34-8.08 53.89 61.38-7.49 52.75 60.96-8.21 -0.72 10 -6.27-4.87-6.63-6.95-6.42-6.59 59.27-5.39 59.25-6.50 -1.12 11 -2.96-1.64-3.41-3.58-3.20-2.98 56.22-2.33 55.81-3.06 -0.73 9 -0.56 0.89-1.19-1.09-0.82-0.61 53.73 0.16 53.41-0.66 -0.82 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.82 1.52 1.36 0.79 1.71 1.66 1.60 1.04 0.61 10 1.52 0.78 1.73 1.55 1.08 0.62 11 1.62 0.81 1.67 1.72 0.97 0.58 9 1.66 0.90 1.50 1.63 1.02 0.68 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.94(F 13 - 60.96)(1.04) + 52.75 0.93(F 10 - 59.25)(1.08) + 52.75 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 9 0.918 0.896 0.895 0.890 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.1 47.2 46.8 44.9 43.4 40.9 40.5 47.1 44.8 43.2 42.2 46.1 41.8 42.0 41.3 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 S- 13 -8.7 -8.3 -8.1 -8.4 -7.4 -8.7 -8.8 -7.7 -7.6 -7.5 -8.6 -7.4 -7.9 -8.5 -8.6 S- 10 -6.6 -6.1 -5.8 -6.2 -5.6 -6.1 -6.0 -6.0 -6.0 -5.9 -7.2 -6.0 -5.8 -6.7 -7.2 S- 11 -3.2 -3.2 -2.5 -3.8 -2.6 -3.0 -2.3 -2.0 -2.4 -2.2 -3.5 -2.9 -2.1 -3.9 -3.3 S- 9 -0.1 -0.5 0.9 0.4 -0.1 -0.3 1.1 0.4 0.4 0.4 -0.7 -0.3 0.7 -0.7 -0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.00-6.80-8.42-8.47-8.31-8.01 44.29 51.66-7.37 43.61 51.75-8.14 -0.77 10 -5.90-4.46-6.18-6.52-6.10-6.39 49.29-5.00 49.82-6.21 -1.21 11 -2.65-1.27-3.06-3.13-2.98-2.88 46.20-1.91 46.46-2.85 -0.94 9 0.26 1.74-0.14-0.29 0.02-0.17 43.22 1.08 43.56 0.05 -1.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.14 1.84 1.89 1.31 1.44 2.27 2.05 1.10 0.77 10 1.96 1.43 1.33 2.11 1.08 0.81 11 2.00 1.44 1.31 2.26 1.01 0.77 9 2.15 1.54 1.23 2.26 1.01 0.82 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.96(F 13 - 51.75)(1.10) + 43.61 0.95(F 10 - 49.82)(1.08) + 43.61 Station#1862 FLOYD/2 NE , va 4307106 lat/lon 80.32 36.92 15M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 56 10 0.958 0.939 0.929 0.919 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 34.3 36.3 38.5 36.8 36.4 38.2 36.1 40.3 38.7 38.5 34.2 39.9 33.8 35.5 34.8 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 S- 13 -8.8 -8.8 -8.0 -8.7 -7.9 -8.1 -8.7 -7.7 -7.8 -7.7 -9.0 -7.9 -8.0 -9.1-10.1 S- 11 -2.9 -2.6 -1.7 -4.1 -3.0 -2.9 -2.0 -2.8 -2.1 -2.8 -3.3 -2.9 -2.7 -3.8 -4.9 S- 56-10.6-10.8-10.2-12.0-11.3-11.3-11.1 -9.6 -9.4 -9.9-11.1-10.1-10.7-12.2-12.3 S- 10 -5.8 -6.3 -5.7 -5.7 -5.6 -5.2 -5.6 -5.7 -5.8 -5.8 -7.0 -6.5 -5.3 -6.3 -8.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.25-7.37-8.39-8.67-8.41-8.49 37.35 45.11-7.76 36.81 45.23-8.42 -0.65 11 -2.62-1.46-2.82-2.88-2.92-3.22 39.26-1.91 39.78-2.97 -1.06 56 *****-9.45******************** 47.11-9.76 47.66***** -1.08 10 -5.63-4.32-5.63-6.16-5.80-6.50 42.12-4.77 42.90-6.08 -1.31 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.55 2.24 2.42 1.95 1.24 2.02 1.65 1.22 0.98 11 2.43 2.14 1.13 1.87 1.08 0.96 56 2.30 2.03 1.20 1.64 1.23 1.03 10 2.36 1.90 1.28 1.95 1.04 0.81 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.98(F 13 - 45.23)(1.22) + 36.81 0.97(F 11 - 39.78)(1.08) + 36.81 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 42.68 44.78 49.95 57.11 66.18 72.99 76.72 75.33 69.61 59.89 51.55 46.42 1952 45.48 46.38 50.97 58.65 68.83 75.46 78.54 75.76 67.81 59.37 49.73 46.08 1953 44.03 47.29 51.79 60.75 68.58 75.24 76.48 74.96 68.90 60.04 51.40 43.99 1954 42.56 44.23 51.76 57.48 66.17 71.47 76.28 75.68 71.08 61.41 49.98 40.99 1955 38.37 43.22 51.69 60.59 66.36 72.54 76.53 77.18 70.70 60.34 48.29 40.07 1956 39.00 42.92 49.44 56.10 65.60 72.90 76.21 74.26 69.12 60.56 54.13 45.85 1957 44.32 43.35 51.30 58.73 68.32 73.51 75.98 75.20 68.04 60.26 50.70 43.54 1958 38.27 37.78 45.60 55.86 64.97 72.38 75.80 75.07 67.92 60.40 48.85 41.65 1959 37.76 42.78 50.06 58.90 67.37 73.72 76.71 76.06 71.13 61.61 51.91 44.41 1960 41.47 39.74 46.80 55.35 67.49 71.94 75.79 74.66 69.64 60.65 48.82 39.93 1961 37.51 43.38 49.97 56.65 63.46 71.75 75.99 76.51 70.12 62.03 50.91 43.48 1962 39.68 41.17 47.88 57.15 66.73 72.44 74.43 72.61 68.33 59.49 49.06 40.11 1963 35.62 40.86 48.73 58.32 65.09 70.96 74.81 72.95 67.25 59.22 48.37 42.29 1964 38.24 43.40 48.74 57.68 65.81 72.52 74.95 73.70 66.57 59.89 51.46 45.57 1965 41.03 40.96 46.37 56.36 65.36 72.52 74.61 74.91 68.81 60.34 50.24 42.48 1966 38.47 40.77 47.62 56.26 63.98 71.65 75.31 74.47 67.71 59.05 49.48 44.31 1967 40.47 43.11 48.61 56.19 63.62 69.29 73.78 72.13 65.93 56.15 49.10 41.45 1968 37.74 39.60 47.01 56.88 65.14 72.03 76.98 75.30 69.69 60.97 50.72 42.54 1969 38.24 40.15 47.44 56.03 66.82 73.40 76.50 74.26 68.33 59.62 49.50 40.27 1970 37.43 39.75 47.98 57.22 66.68 73.25 76.01 75.96 70.93 62.77 52.19 43.23 1971 39.98 41.11 47.75 55.00 64.89 72.04 75.69 74.62 71.04 62.83 55.49 48.11 1972 44.83 44.56 48.79 56.86 64.11 71.06 74.86 74.97 68.26 59.52 51.45 45.15 1973 41.79 43.61 49.92 58.52 66.44 72.97 77.03 76.21 71.21 63.49 53.71 48.78 1974 44.55 47.03 51.15 59.39 66.09 71.60 74.79 74.20 67.36 58.72 49.97 45.67 1975 43.60 44.91 48.40 56.11 65.43 73.03 76.89 75.60 70.76 62.54 52.81 44.46 1976 42.54 46.31 53.83 59.43 66.10 71.62 74.78 73.43 66.20 55.89 45.44 36.57 1977 35.53 40.76 51.99 60.48 67.05 72.97 76.97 77.51 70.25 61.88 51.10 43.66 1978 36.40 37.77 45.02 55.60 64.96 71.34 75.90 75.00 68.79 60.92 52.18 45.78 1979 38.44 40.18 46.94 58.17 64.82 70.44 74.19 74.68 68.97 61.19 51.74 44.99 1980 38.86 40.08 46.84 57.39 66.19 72.85 77.25 78.05 71.01 60.39 48.75 40.19 1981 38.28 40.15 50.06 57.20 68.09 73.64 76.88 73.74 66.59 58.39 48.04 39.91 1982 37.58 41.40 48.98 57.75 65.99 73.65 75.59 74.16 67.57 60.21 52.88 45.78 1983 41.73 42.85 48.76 57.14 64.72 72.22 76.15 75.18 69.17 60.30 50.65 42.28 1984 40.87 42.21 49.03 55.62 65.56 72.11 75.17 72.74 69.55 59.94 53.63 42.72 1985 40.33 40.54 50.06 58.80 66.68 71.49 74.31 73.81 70.08 64.98 54.23 45.22 1986 39.59 43.58 50.16 58.19 66.56 74.32 76.95 75.12 69.11 61.68 52.33 43.45 1987 38.67 40.34 46.21 55.95 65.35 73.98 77.18 75.76 67.09 59.29 50.51 43.65 1988 39.63 41.14 48.85 56.79 64.72 72.05 76.69 75.54 67.57 58.34 48.92 45.27 1989 42.03 44.66 48.88 56.47 66.15 73.11 76.97 75.21 69.57 61.26 48.01 43.14 1990 41.99 48.97 52.82 58.51 65.56 72.78 76.54 74.94 69.41 61.44 54.34 47.12 1991 44.32 45.75 51.81 60.60 68.20 75.16 77.07 75.71 68.79 59.75 51.44 45.05 1992 43.13 44.08 49.54 55.59 63.12 70.56 74.35 74.60 66.91 59.82 50.00 45.21 1993 40.80 42.01 46.43 55.93 65.66 74.40 77.61 76.85 69.07 60.40 49.26 41.46 1994 38.39 42.17 50.97 57.83 66.78 73.30 77.06 74.38 66.56 60.04 52.61 47.21 1995 42.08 43.39 48.67 57.42 65.32 72.71 76.70 75.33 69.45 58.98 48.06 39.55 1996 37.65 40.32 47.45 55.85 65.83 71.85 74.73 73.21 67.58 57.82 49.46 42.75 1997 42.79 44.94 49.76 55.39 62.17 70.32 74.52 73.97 67.54 58.57 49.32 42.42 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.969 0.941 0.928 0.926 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.7 40.9 40.3 39.6 38.7 39.6 42.0 42.0 44.3 43.1 40.8 38.4 42.1 37.7 42.8 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 1.0 2.3 0.0 0.6 0.3 1.5 1.4 1.1 0.9 0.4 0.5 0.8 0.6 0.4 1.0 S- 9 6.5 9.5 7.5 8.1 6.3 7.5 7.5 8.3 8.0 7.4 6.9 8.1 7.9 7.0 7.4 S- 7 5.5 8.1 5.5 7.2 5.5 6.8 7.0 7.4 6.9 6.7 6.4 8.0 6.3 6.3 6.1 S- 13 -1.6 -0.9 -3.1 -3.0 -2.8 -1.3 -2.2 -2.6 -1.6 -2.8 -2.1 -2.7 -1.6 -3.2 -1.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.03 1.02 1.00 1.35 1.03 0.66 40.40 39.40 1.01 40.93 40.07 0.86 -0.15 9 7.92 7.62 8.06 8.60 7.68 7.52 32.62 7.78 33.35 7.59 -0.20 7 6.93 6.64 7.08 7.51 6.64 6.68 33.45 6.95 34.28 6.66 -0.29 13 -2.28-2.53-2.42-1.90-2.28-2.27 42.99-2.59 43.16-2.23 0.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.57 2.48 2.83 2.49 1.13 1.83 1.82 1.00 0.89 9 2.89 2.99 0.94 1.85 0.99 1.05 7 2.52 2.68 1.05 2.00 0.91 0.87 13 2.54 2.78 1.01 1.66 1.10 1.08 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(1.00) + 40.93 0.97(F 9 - 33.35)(0.99) + 40.93 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.978 0.950 0.948 0.947 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.8 42.2 40.5 43.6 40.3 41.1 44.7 49.0 45.8 44.1 42.0 42.2 43.4 40.3 44.9 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 S- 10 1.0 1.6 -0.4 1.1 0.1 1.3 1.1 0.8 0.8 0.4 0.4 1.4 0.5 0.9 0.7 S- 13 -1.5 -2.9 -4.1 -3.1 -3.6 -1.9 -3.0 -2.4 -2.3 -3.1 -2.8 -3.1 -2.6 -3.1 -4.0 S- 12 -4.2 -5.5 -6.9 -5.9 -6.1 -4.7 -6.2 -5.6 -5.4 -5.6 -6.4 -6.9 -5.4 -6.6 -7.0 S- 9 6.8 8.4 7.1 7.7 5.0 7.2 6.5 7.0 7.7 7.1 6.8 9.0 7.4 7.5 7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.96 0.92 0.95 1.22 0.90 0.74 42.82 41.89 0.93 43.13 42.35 0.78 -0.14 13 -2.84-2.96-2.80-2.61-2.90-2.99 45.76-2.95 46.03-2.90 0.05 12 -5.74-5.62-5.64-5.68-5.70-6.19 48.54-5.73 49.03-5.90 -0.17 9 7.60 7.61 7.59 8.13 7.13 7.50 35.21 7.60 35.92 7.21 -0.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.46 2.45 2.37 2.14 1.11 2.27 2.25 1.01 0.91 13 2.57 2.47 0.96 2.21 1.03 1.07 12 2.68 2.35 1.01 2.27 1.00 0.99 9 2.79 2.46 0.97 2.36 0.96 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.99(F 10 - 42.35)(1.01) + 43.13 0.97(F 13 - 46.03)(1.03) + 43.13 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.968 0.924 0.914 0.905 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.8 49.0 50.1 50.2 46.2 48.8 48.9 52.8 51.8 49.5 46.4 51.0 48.7 47.5 49.8 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 S- 10 1.4 1.4 -0.3 0.6 -0.1 1.3 0.9 0.5 0.6 0.4 0.3 0.7 0.1 1.1 0.4 S- 9 6.9 7.6 6.4 6.0 4.3 6.9 6.7 6.6 6.6 6.4 6.5 7.4 6.5 7.6 6.4 S- 13 -1.3 -2.3 -3.7 -4.1 -3.8 -2.2 -3.4 -2.6 -3.0 -3.0 -2.6 -3.0 -3.9 -2.6 -3.9 S- 12 -3.6 -5.0 -5.9 -6.3 -5.6 -4.3 -5.8 -5.3 -5.6 -5.2 -5.3 -5.8 -6.3 -5.2 -6.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.91 1.07 0.86 1.14 0.85 0.51 49.40 48.40 1.01 49.29 48.67 0.62 -0.39 9 6.97 7.40 6.64 7.31 6.66 6.77 42.19 7.21 42.70 6.59 -0.62 13 -2.86-2.55-3.17-2.66-2.89-3.14 52.13-2.72 52.32-3.02 -0.30 12 -5.20-4.75-5.46-5.00-5.20-5.76 54.41-5.01 54.77-5.48 -0.47 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.96 1.97 1.95 1.95 1.00 1.74 1.80 0.97 0.97 9 2.04 2.10 0.93 1.69 1.03 1.11 13 1.96 2.04 0.96 1.92 0.91 0.95 12 1.96 1.90 1.03 2.02 0.86 0.84 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(0.97) + 49.29 0.96(F 9 - 42.70)(1.03) + 49.29 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 13 12 0.945 0.876 0.871 0.870 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.1 55.6 58.8 58.2 56.0 56.8 56.5 58.5 60.6 55.6 55.9 57.8 57.4 55.8 55.4 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 S- 10 1.7 1.3 -0.4 0.5 0.0 1.1 1.2 0.6 0.7 0.5 0.3 0.6 0.1 0.9 0.4 S- 7 5.8 6.4 4.0 4.5 3.2 4.9 5.6 5.6 5.1 5.6 5.0 5.9 5.0 5.8 4.6 S- 13 -1.0 -2.4 -3.0 -3.0 -3.4 -2.2 -2.1 -2.4 -2.2 -2.4 -2.0 -2.6 -4.1 -2.7 -3.6 S- 12 -3.0 -5.0 -4.9 -4.7 -4.6 -3.9 -4.4 -4.8 -4.6 -4.3 -4.2 -4.8 -6.1 -5.0 -6.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.90 1.03 0.80 1.19 0.88 0.49 57.71 56.76 0.95 57.07 56.44 0.63 -0.31 7 5.50 5.81 5.57 5.64 5.14 5.30 52.01 5.71 51.92 5.15 -0.56 13 -2.49-2.31-2.90-2.12-2.42-2.78 60.19-2.48 59.67-2.60 -0.12 12 -4.40-4.03-4.62-4.13-4.33-5.06 61.92-4.21 61.78-4.70 -0.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.50 1.52 1.56 1.54 1.02 1.44 1.62 0.89 0.88 7 1.59 1.43 1.09 1.74 0.83 0.76 13 1.53 1.59 0.98 1.57 0.92 0.94 12 1.46 1.46 1.07 1.58 0.91 0.85 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 56.44)(0.89) + 57.07 0.94(F 7 - 51.92)(0.83) + 57.07 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 13 0.936 0.884 0.880 0.857 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.7 65.6 66.7 66.6 65.3 64.7 66.2 65.6 68.2 63.1 65.7 66.8 65.3 65.8 62.2 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 S- 10 1.6 1.0 -0.1 -0.2 0.0 1.0 1.5 0.5 0.3 0.4 0.3 0.4 0.3 0.5 0.4 S- 7 4.6 4.6 3.9 3.5 3.0 3.8 5.0 4.3 3.5 4.1 3.9 3.8 4.3 4.5 3.0 S- 12 -2.3 -3.2 -4.1 -4.4 -3.7 -3.1 -2.8 -4.3 -3.8 -3.8 -3.2 -3.1 -4.9 -4.0 -4.0 S- 13 -0.7 -1.1 -2.3 -3.4 -2.7 -1.8 -0.5 -2.3 -1.8 -2.1 -1.8 -1.5 -2.8 -2.2 -1.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.83 0.89 0.73 1.20 0.82 0.39 66.42 65.60 0.82 65.49 64.96 0.53 -0.29 7 4.39 4.76 4.23 4.61 4.34 3.89 61.88 4.54 61.50 3.99 -0.55 12 -3.40-3.18-3.59-3.16-3.38-3.82 69.77-3.35 69.13-3.64 -0.29 13 -1.94-2.11-2.30-1.52-1.80-1.98 68.64-2.22 67.41-1.92 0.30 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.40 1.42 1.44 1.39 1.04 1.41 1.58 0.89 0.86 7 1.33 1.27 1.13 1.46 0.97 0.86 12 1.33 1.16 1.24 1.56 0.91 0.73 13 1.50 1.36 1.06 1.66 0.85 0.80 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 64.96)(0.89) + 65.49 0.94(F 7 - 61.50)(0.97) + 65.49 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.953 0.883 0.871 0.863 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.2 72.1 71.5 74.3 74.0 72.1 73.1 72.8 75.2 70.6 74.4 73.3 72.7 71.8 70.3 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 10 0.9 0.7 -0.3 0.3 0.0 0.8 1.3 0.6 0.4 0.5 0.6 1.0 0.5 0.2 0.6 S- 12 -2.5 -2.7 -4.2 -3.3 -2.5 -2.1 -2.1 -3.5 -2.3 -3.6 -2.8 -1.8 -3.1 -4.2 -2.9 S- 9 6.1 6.0 4.9 5.8 4.4 4.9 6.7 6.4 4.8 5.5 6.1 6.7 5.5 5.3 5.8 S- 13 -1.4 -1.0 -2.4 -2.5 -1.8 -0.8 0.2 -1.8 -0.7 -1.6 -1.7 -0.3 -1.6 -2.8 -1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.74 0.67 0.70 1.01 0.72 0.54 72.82 72.15 0.68 72.69 72.15 0.54 -0.13 12 -2.64-2.60-2.57-2.44-2.72-2.95 75.47-2.64 75.59-2.90 -0.26 9 5.63 5.63 5.24 5.80 5.82 5.66 67.31 5.51 67.04 5.65 0.14 13 -1.43-1.86-1.47-1.06-1.35-1.41 74.61-1.79 74.11-1.42 0.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.28 1.30 1.21 1.15 1.05 1.35 1.40 0.96 0.92 12 1.23 1.04 1.16 1.25 1.08 0.93 9 1.42 1.45 0.83 1.53 0.88 1.06 13 1.48 1.32 0.92 1.49 0.90 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.98(F 10 - 72.15)(0.96) + 72.69 0.94(F 12 - 75.59)(1.08) + 72.69 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 12 0.926 0.842 0.825 0.821 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.2 75.2 74.3 76.9 77.2 76.7 77.0 76.5 77.1 74.3 77.6 77.1 76.7 74.7 74.5 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9 S- 10 0.0 0.0 -0.1 0.3 -0.4 0.6 1.1 0.8 0.3 0.3 0.4 0.8 0.2 0.0 0.5 S- 9 4.7 4.7 5.2 5.9 4.5 4.6 6.2 6.2 5.1 5.8 5.5 5.8 4.3 5.0 5.4 S- 11 3.3 3.4 3.2 3.4 3.5 4.1 5.4 4.4 4.4 4.2 3.7 5.0 3.6 3.2 3.8 S- 12 -2.6 -2.8 -3.7 -3.1 -2.6 -1.6 -1.7 -2.9 -2.1 -3.6 -2.5 -1.4 -2.0 -3.2 -2.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.61 0.53 0.62 0.92 0.52 0.36 75.99 75.44 0.55 76.13 75.81 0.33 -0.22 9 5.54 5.49 5.40 5.90 5.55 5.27 70.51 5.48 70.87 5.26 -0.22 11 3.94 3.50 3.98 4.39 3.84 4.00 72.39 3.60 72.21 3.92 0.32 12 -2.19-2.19-2.09-1.77-2.52-2.45 78.24-2.25 78.68-2.54 -0.29 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.07 1.07 1.00 0.93 1.08 1.13 1.08 1.05 0.97 9 1.17 1.06 0.94 1.25 0.90 0.96 11 1.21 1.17 0.86 1.06 1.06 1.24 12 1.03 0.92 1.09 0.88 1.29 1.19 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 75.81)(1.05) + 76.13 0.92(F 9 - 70.87)(0.90) + 76.13 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.940 0.899 0.877 0.852 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.2 72.7 73.8 75.1 75.8 75.5 75.2 74.9 75.7 74.6 76.8 74.4 75.3 73.2 74.0 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 S- 10 -0.2 0.2 0.3 0.3 -0.5 0.9 1.2 0.7 0.3 0.7 0.5 0.8 0.2 0.1 0.5 S- 9 5.0 5.3 5.3 5.3 4.9 4.8 6.2 5.9 5.5 6.3 5.7 6.0 5.0 5.6 6.2 S- 7 1.8 2.3 2.2 3.4 3.0 2.6 3.8 3.7 3.1 4.5 3.8 3.2 2.2 2.5 3.0 S- 12 -3.1 -3.0 -2.8 -3.5 -3.1 -2.2 -1.9 -3.3 -2.3 -3.2 -2.5 -2.0 -2.3 -3.5 -3.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.67 0.60 0.74 0.99 0.52 0.44 74.99 74.33 0.65 74.82 74.43 0.39 -0.26 9 5.75 5.60 5.70 6.21 5.50 5.74 69.36 5.63 69.30 5.52 -0.11 7 3.16 3.20 2.85 3.61 2.96 3.19 71.85 3.14 71.81 3.01 -0.13 12 -2.33-2.28-2.22-1.85-2.71-2.68 77.28-2.29 77.61-2.78 -0.49 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.23 1.24 1.20 1.12 1.08 1.03 1.08 0.95 0.88 9 1.38 1.36 0.89 1.21 0.85 0.96 7 1.19 1.31 0.91 1.04 0.99 1.08 12 1.09 0.92 1.30 0.97 1.06 0.82 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 74.43)(0.95) + 74.82 0.95(F 9 - 69.30)(0.85) + 74.82 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 12 0.953 0.917 0.904 0.902 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.2 69.6 70.1 69.1 67.1 67.6 69.6 69.4 68.8 66.9 69.1 66.6 69.4 67.6 67.5 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 S- 10 0.2 0.3 1.3 0.6 -0.2 1.4 1.5 0.8 0.4 0.8 0.4 0.2 0.3 0.3 0.5 S- 7 2.8 3.3 4.1 4.0 3.4 4.0 4.2 3.8 3.1 4.4 4.1 3.3 2.6 2.9 3.2 S- 9 5.5 5.2 6.4 5.8 5.2 6.2 7.0 6.3 5.3 5.9 5.8 5.3 5.3 5.5 6.4 S- 12 -3.6 -3.0 -3.0 -3.6 -4.0 -2.9 -2.3 -3.9 -3.1 -3.7 -3.4 -3.6 -3.2 -3.4 -3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.81 0.77 0.82 1.11 0.81 0.41 69.00 68.22 0.78 68.50 67.92 0.58 -0.20 7 3.70 3.71 3.41 4.22 3.69 3.38 65.38 3.62 64.95 3.55 -0.07 9 6.04 5.95 5.94 6.60 5.94 5.64 63.15 5.85 62.70 5.80 -0.05 12 -2.89-2.85-2.81-2.35-3.17-3.44 71.85-2.84 71.86-3.37 -0.52 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.46 1.42 1.34 1.31 1.02 1.11 1.07 1.04 1.03 7 1.41 1.37 0.97 1.22 0.91 0.94 9 1.50 1.33 1.00 1.10 1.02 1.01 12 1.30 1.13 1.18 1.01 1.10 0.94 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 67.92)(1.04) + 68.50 0.96(F 7 - 64.95)(0.91) + 68.50 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 12 0.965 0.941 0.933 0.926 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.3 59.9 65.0 61.7 59.3 58.3 61.3 61.4 59.8 59.8 60.4 60.0 59.0 57.8 58.6 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 S- 10 0.8 0.4 1.9 1.0 0.9 1.9 1.6 0.7 0.5 1.2 0.3 0.6 0.8 0.5 0.6 S- 13 -0.6 -1.6 0.0 -1.4 -0.5 -0.5 0.2 -1.4 -0.7 -0.4 -1.1 -0.8 -0.8 -1.2 -1.0 S- 9 6.7 6.0 7.5 6.8 6.6 7.3 7.9 6.3 6.3 6.8 6.7 5.9 7.0 6.7 7.1 S- 12 -3.5 -3.6 -3.5 -4.7 -3.6 -3.8 -3.3 -4.2 -3.4 -3.8 -4.5 -4.0 -4.0 -4.3 -4.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.11 1.07 1.14 1.39 1.16 0.66 60.37 59.27 1.09 60.17 59.25 0.92 -0.17 13 -0.74-0.98-0.75-0.42-0.76-0.83 61.38-1.01 60.96-0.78 0.23 9 6.82 6.83 6.58 7.25 6.77 6.64 53.73 6.64 53.41 6.76 0.12 12 -3.36-3.29-3.05-3.01-3.61-4.02 63.61-3.24 64.06-3.88 -0.64 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.66 1.52 0.78 0.78 1.00 1.68 1.55 1.09 1.09 13 1.52 0.79 0.98 1.60 1.05 1.06 9 1.66 0.90 0.87 1.63 1.03 1.19 12 1.57 0.77 1.01 1.65 1.02 1.00 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.98(F 10 - 59.25)(1.09) + 60.17 0.97(F 13 - 60.96)(1.05) + 60.17 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.973 0.957 0.953 0.945 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.7 53.6 54.2 52.3 50.5 48.9 48.0 54.3 51.4 50.0 49.3 52.6 48.1 49.5 49.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 S- 10 2.0 0.4 1.7 1.3 1.5 1.8 1.5 1.2 0.7 1.0 -0.2 0.6 0.5 0.8 0.8 S- 13 -0.1 -1.9 -0.6 -1.0 -0.3 -0.7 -1.3 -0.4 -1.0 -0.7 -1.5 -0.9 -1.6 -1.0 -0.6 S- 12 -3.8 -4.2 -4.5 -5.2 -3.6 -4.0 -4.6 -4.1 -3.8 -4.7 -5.4 -4.5 -5.1 -4.8 -4.5 S- 9 8.5 6.0 8.4 7.9 7.0 7.7 8.6 7.6 7.0 7.2 6.4 6.3 7.0 6.8 7.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.16 1.08 1.15 1.45 1.37 0.59 50.36 49.29 1.07 50.85 49.82 1.03 -0.04 13 -0.94-1.25-1.10-0.50-0.85-1.02 51.66-1.30 51.75-0.90 0.40 12 -4.04-4.00-3.92-3.59-4.20-4.68 54.38-4.02 55.30-4.44 -0.42 9 7.32 7.29 7.19 7.69 7.48 6.82 43.22 7.14 43.56 7.29 0.14 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.03 1.96 1.55 1.43 1.08 2.07 2.11 0.98 0.90 13 1.84 1.31 1.18 2.05 1.01 0.86 12 1.96 1.49 1.04 2.02 1.03 0.99 9 2.15 1.54 1.00 2.26 0.92 0.91 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.99(F 10 - 49.82)(0.98) + 50.85 0.98(F 13 - 51.75)(1.01) + 50.85 Station#1863 HOLLAND/1 E , va 4404401 lat/lon 76.78 36.68 1M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.964 0.946 0.940 0.938 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.3 42.7 45.2 43.5 43.7 45.3 43.1 47.1 45.0 45.2 41.5 47.2 39.5 42.8 42.4 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 10 2.1 0.2 1.0 1.0 1.6 1.8 1.4 1.1 0.5 0.9 0.3 0.8 0.4 1.0 -1.1 S- 12 -4.3 -5.3 -4.9 -6.3 -4.2 -4.6 -5.1 -4.5 -4.2 -5.4 -6.0 -4.4 -6.2 -5.6 -6.5 S- 13 -0.9 -2.3 -1.3 -2.0 -0.7 -1.1 -1.7 -0.9 -1.4 -0.9 -1.8 -0.5 -2.3 -1.8 -2.4 S- 9 9.1 6.9 8.5 7.6 7.2 7.2 8.8 7.6 7.9 7.2 7.8 7.4 6.9 7.6 5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.12 0.96 1.18 1.61 1.24 0.40 43.12 42.12 1.00 43.77 42.90 0.87 -0.13 12 -4.83-4.98-4.60-4.39-4.90-5.48 48.06-4.94 48.94-5.17 -0.23 13 -1.50-2.09-1.58-0.90-1.37-1.59 45.11-1.99 45.23-1.46 0.53 9 7.83 7.65 7.90 8.54 7.72 7.13 35.43 7.69 36.24 7.52 -0.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.50 2.36 2.19 1.90 1.16 2.02 1.95 1.04 0.90 12 2.40 2.02 1.09 1.66 1.21 1.11 13 2.24 1.95 1.13 1.65 1.22 1.09 9 2.64 2.20 1.00 2.10 0.96 0.96 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.98(F 10 - 42.90)(1.04) + 43.77 0.97(F 12 - 48.94)(1.21) + 43.77 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 44.14 46.63 51.56 58.55 67.12 73.85 77.65 76.31 70.98 61.17 52.01 45.82 1952 44.64 46.28 51.24 58.95 69.37 76.35 79.97 77.09 69.09 60.17 50.10 46.01 1953 44.38 47.74 52.83 61.74 70.38 77.39 79.03 77.48 71.16 61.46 52.23 45.02 1954 44.61 46.99 54.73 60.17 68.64 73.80 78.39 78.22 73.20 62.83 50.88 42.00 1955 40.24 45.07 53.60 62.56 68.54 74.74 78.32 78.65 71.73 61.39 49.32 41.30 1956 39.82 43.81 50.34 57.75 66.72 73.84 77.00 75.15 69.79 60.85 54.60 46.01 1957 44.30 43.62 52.61 60.68 69.89 74.76 76.75 75.63 68.01 60.21 50.88 43.98 1958 38.29 37.90 45.81 56.29 65.64 72.80 76.29 75.54 68.36 60.35 48.66 42.03 1959 38.80 43.79 51.56 60.29 69.05 74.27 77.21 75.63 70.50 61.18 52.39 45.67 1960 43.00 40.87 47.92 56.02 68.95 73.84 78.10 76.86 71.43 62.55 50.82 42.12 1961 39.57 45.34 52.27 58.77 65.26 72.88 77.29 77.82 71.68 63.46 51.98 44.73 1962 40.96 42.95 49.56 59.30 68.58 74.23 75.52 73.78 69.41 60.52 50.12 41.63 1963 37.52 43.12 51.15 60.99 68.21 73.58 77.09 74.74 69.21 61.33 50.26 43.64 1964 39.42 44.98 50.79 60.07 68.28 74.71 77.07 75.26 67.76 60.50 52.38 46.95 1965 43.00 42.85 48.53 58.62 67.94 74.84 76.49 76.07 70.01 61.57 52.39 44.26 1966 40.41 42.56 49.80 58.39 66.02 73.50 77.08 75.53 68.59 59.70 49.97 45.22 1967 41.54 45.12 51.13 58.90 66.56 71.75 76.14 74.43 68.48 58.83 51.14 43.11 1968 39.64 42.46 50.25 59.60 67.04 73.69 78.63 77.29 71.63 62.78 52.44 43.83 1969 39.35 41.07 49.34 58.78 69.26 75.07 77.50 75.02 68.65 59.88 49.81 41.10 1970 38.66 41.26 50.00 59.11 69.08 75.25 78.13 77.64 72.70 63.93 53.69 44.72 1971 41.44 42.39 49.00 56.72 66.35 73.19 76.96 76.20 72.63 64.19 56.99 49.33 1972 45.74 45.23 50.17 58.50 65.68 72.17 75.91 75.92 69.09 60.24 52.20 46.45 1973 43.35 45.61 51.75 60.02 67.54 74.20 78.52 77.95 72.69 64.78 54.43 49.40 1974 45.60 48.82 53.31 61.42 67.84 73.42 76.32 75.78 69.09 60.68 52.25 47.14 1975 44.86 45.64 49.56 57.58 66.84 73.96 77.60 76.22 72.05 63.91 54.14 45.53 1976 43.07 47.61 55.26 61.35 68.05 73.52 77.00 75.47 68.42 57.95 47.57 38.13 1977 37.13 42.35 53.93 62.45 68.73 75.02 78.92 79.49 71.90 63.09 51.99 43.77 1978 37.11 38.97 47.42 57.98 67.40 73.53 78.18 77.57 71.62 62.99 53.57 46.31 1979 39.13 41.50 48.59 60.34 66.82 72.51 75.85 75.71 70.13 62.37 53.45 46.08 1980 40.49 41.61 49.18 59.28 68.26 74.89 79.23 80.15 73.06 62.33 50.32 41.67 1981 40.35 42.30 52.26 58.81 69.23 74.35 77.41 74.39 67.16 59.00 48.41 39.99 1982 37.15 41.25 49.11 57.94 65.72 72.86 74.74 73.53 68.06 61.61 54.87 47.68 1983 43.36 44.51 50.14 58.56 66.06 74.14 78.47 77.72 71.26 61.58 50.41 41.33 1984 39.68 41.99 49.38 56.24 66.92 73.42 76.55 73.35 69.71 59.45 53.17 42.40 1985 40.75 41.52 51.54 60.49 67.79 72.36 74.57 73.34 69.43 64.63 55.31 46.70 1986 41.14 44.62 51.84 60.46 69.18 76.44 78.71 77.04 70.90 62.95 53.12 44.26 1987 40.11 42.65 48.93 59.05 68.06 76.61 79.61 78.16 69.11 60.15 50.48 43.37 1988 39.87 41.78 49.71 57.52 65.33 72.39 77.00 75.55 66.83 57.07 47.44 43.76 1989 41.22 44.96 50.76 58.71 68.07 74.93 78.63 76.84 70.99 62.46 48.93 43.91 1990 43.04 50.25 54.22 59.70 67.09 74.07 77.50 75.69 70.28 62.66 55.07 47.72 1991 45.02 47.60 54.60 64.07 71.54 77.97 79.48 77.98 71.43 62.62 54.18 47.72 1992 45.63 46.69 52.65 58.89 66.50 73.25 76.89 76.84 69.50 62.05 52.43 47.39 1993 43.35 44.62 49.52 59.01 68.83 76.66 80.10 79.31 71.91 62.68 50.94 42.53 1994 39.31 43.55 53.38 60.59 69.52 75.05 78.82 76.26 68.96 61.93 54.09 48.25 1995 43.48 45.40 51.80 60.95 68.69 75.65 79.98 78.75 72.93 62.07 51.19 42.41 1996 40.32 42.86 50.51 59.12 69.36 75.15 77.97 76.31 70.98 61.12 52.85 45.80 1997 45.83 47.82 52.81 58.95 65.90 73.81 77.84 77.44 71.03 61.47 51.43 43.91 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.946 0.920 0.910 0.893 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.4 39.7 40.8 41.1 40.1 39.9 41.2 43.0 45.0 45.6 43.3 39.3 43.5 40.3 45.8 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 S- 10 2.7 1.2 0.5 2.2 1.8 1.7 0.6 2.1 1.6 2.9 3.0 1.8 2.0 3.1 4.0 S- 9 8.2 8.3 7.9 9.6 7.7 7.7 6.7 9.3 8.7 9.9 9.5 9.0 9.3 9.7 10.4 S- 7 7.2 6.9 5.9 8.8 6.9 7.0 6.2 8.5 7.6 9.2 9.0 8.9 7.7 8.9 9.1 S- 38 5.3 7.2 7.1 7.6 5.1 5.9 4.6 7.2 7.4 7.4 7.8 7.2 7.3 7.8 8.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.21 1.85 2.57 2.49 1.63 2.63 41.51 39.40 2.12 42.14 40.07 2.07 -0.05 9 9.09 8.45 9.62 9.74 8.28 9.49 32.62 8.89 33.35 8.79 -0.10 7 8.10 7.47 8.64 8.65 7.24 8.65 33.45 8.06 34.28 7.86 -0.20 38 7.09 6.14 7.57 7.98 6.28 7.64 34.82 6.70 35.24 6.91 0.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.54 2.48 2.49 2.49 1.00 2.16 1.82 1.19 1.19 9 2.89 2.99 0.83 1.85 1.17 1.40 7 2.52 2.68 0.93 2.00 1.08 1.16 38 3.07 3.13 0.80 2.04 1.06 1.33 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 40.07)(1.19) + 42.14 0.96(F 9 - 33.35)(1.17) + 42.14 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.961 0.928 0.916 0.907 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.5 42.0 41.5 44.6 42.7 41.8 45.0 50.3 47.6 46.7 44.6 43.5 45.4 42.9 47.8 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 S- 10 2.7 1.3 0.6 2.1 2.4 1.9 1.4 2.0 2.6 3.0 3.0 2.8 2.5 3.5 3.6 S- 9 8.5 8.1 8.1 8.8 7.3 7.8 6.8 8.2 9.6 9.7 9.4 10.4 9.4 10.0 9.9 S- 13 0.1 -3.1 -3.1 -2.1 -1.2 -1.3 -2.7 -1.1 -0.4 -0.5 -0.2 -1.8 -0.6 -0.5 -1.1 S- 12 -2.6 -5.8 -5.9 -4.9 -3.8 -4.1 -5.9 -4.3 -3.6 -3.0 -3.8 -5.5 -3.4 -4.0 -4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.41 1.95 2.80 2.56 1.90 3.00 44.13 41.89 2.24 44.72 42.35 2.37 0.13 9 9.04 8.63 9.44 9.47 8.12 9.77 35.21 8.92 35.92 8.80 -0.12 13 -1.40-1.94-0.95-1.27-1.90-0.72 45.76-1.63 46.03-1.31 0.33 12 -4.29-4.60-3.78-4.34-4.70-3.92 48.54-4.41 49.03-4.31 0.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.54 2.45 2.44 2.14 1.14 2.43 2.25 1.08 0.95 9 2.79 2.46 0.99 2.36 1.03 1.04 13 2.57 2.47 0.99 2.21 1.10 1.11 12 2.68 2.35 1.04 2.27 1.07 1.03 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.35)(1.08) + 44.72 0.96(F 9 - 35.92)(1.03) + 44.72 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.945 0.914 0.897 0.880 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.1 49.4 51.5 51.8 48.9 49.7 50.8 54.2 54.6 52.7 49.5 53.4 51.8 50.5 52.8 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 10 2.8 1.8 1.1 2.3 2.6 2.2 2.8 1.9 3.3 3.5 3.4 3.2 3.2 4.1 3.5 S- 9 8.2 7.9 7.9 7.7 7.0 7.8 8.6 8.0 9.4 9.5 9.6 9.8 9.6 10.7 9.5 S- 13 0.0 -1.9 -2.2 -2.4 -1.0 -1.4 -1.5 -1.2 -0.2 0.2 0.5 -0.6 -0.8 0.4 -0.9 S- 38 5.6 5.4 5.7 4.9 3.4 5.9 5.9 5.9 6.7 6.5 7.5 7.8 6.7 8.9 7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.77 2.35 3.10 2.89 2.26 3.46 50.97 48.40 2.57 51.45 48.67 2.78 0.21 9 8.83 8.69 8.89 9.06 8.07 9.72 42.19 8.78 42.70 8.75 -0.02 13 -1.00-1.26-0.92-0.90-1.48-0.19 52.13-1.16 52.32-0.86 0.30 38 6.20 6.06 6.12 6.40 5.45 7.31 44.93 6.04 45.19 6.26 0.22 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.04 1.97 2.22 1.95 1.14 1.74 1.80 0.97 0.85 9 2.04 2.10 1.06 1.69 1.03 0.97 13 1.96 2.04 1.09 1.92 0.91 0.83 38 2.21 2.29 0.97 1.81 0.96 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 48.67)(0.97) + 51.45 0.96(F 9 - 42.70)(1.03) + 51.45 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 13 0.908 0.854 0.849 0.844 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.6 56.2 60.5 60.5 59.0 57.5 58.7 59.7 64.1 58.9 59.0 60.6 61.0 59.1 59.0 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 3.1 1.9 1.3 2.8 3.1 1.8 3.5 1.8 4.2 3.8 3.4 3.3 3.7 4.2 3.9 S- 9 8.8 8.0 6.8 7.8 7.1 6.5 8.7 7.5 9.0 8.9 9.2 10.0 9.3 9.9 10.2 S- 12 -1.5 -4.4 -3.2 -2.5 -1.5 -3.1 -2.1 -3.6 -1.1 -1.0 -1.1 -2.1 -2.6 -1.7 -2.8 S- 13 0.5 -1.7 -1.3 -0.7 -0.3 -1.4 0.1 -1.2 1.3 0.9 1.1 0.2 -0.5 0.6 0.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.90 2.38 3.18 3.06 2.38 3.78 59.38 56.76 2.62 59.49 56.44 3.05 0.43 9 8.30 8.16 8.18 8.40 7.61 9.51 51.18 8.20 50.97 8.52 0.32 12 -2.40-2.69-2.24-2.26-2.82-1.78 61.92-2.53 61.78-2.29 0.25 13 -0.49-0.96-0.52-0.25-0.91 0.50 60.19-0.81 59.67-0.18 0.63 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.64 1.52 1.77 1.54 1.16 1.70 1.62 1.05 0.91 9 1.68 1.70 1.04 1.83 0.93 0.89 12 1.46 1.46 1.21 1.58 1.08 0.89 13 1.53 1.59 1.11 1.57 1.08 0.97 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 56.44)(1.05) + 59.49 0.92(F 9 - 50.97)(0.93) + 59.49 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 8 9 0.877 0.868 0.842 0.830 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.1 66.9 67.8 69.2 68.1 65.3 68.1 67.1 71.5 66.5 68.8 69.5 68.7 69.4 65.9 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 2.9 2.3 1.1 2.4 2.7 1.6 3.5 2.1 3.6 3.8 3.5 3.2 3.7 4.1 4.2 S- 7 5.9 6.0 5.0 6.1 5.7 4.4 6.9 5.8 6.9 7.5 7.1 6.5 7.7 8.0 6.8 S- 8 11.0 11.2 10.2 10.7 9.2 8.8 12.4 10.4 10.5 11.1 11.4 11.9 12.3 12.0 11.3 S- 9 8.1 7.4 6.6 7.4 7.0 6.0 9.6 7.7 7.8 8.5 8.9 8.9 8.9 9.1 9.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.81 2.33 3.08 2.94 2.23 3.71 68.17 65.60 2.57 67.92 64.96 2.96 0.39 7 6.37 6.20 6.58 6.35 5.75 7.21 61.88 6.29 61.50 6.42 0.13 8 10.8110.5410.8210.9110.4911.48 57.5210.65 56.9710.95 0.30 9 7.83 7.56 7.62 7.98 7.43 8.84 60.56 7.61 59.81 8.11 0.51 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.43 1.42 1.40 1.39 1.01 1.61 1.58 1.02 1.01 7 1.33 1.27 1.10 1.46 1.10 1.00 8 1.42 1.45 0.96 1.62 0.99 1.03 9 1.51 1.56 0.90 1.75 0.92 1.02 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 64.96)(1.02) + 67.92 0.93(F 7 - 61.50)(1.10) + 67.92 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.849 0.799 0.785 0.770 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.1 73.4 72.4 76.4 76.6 72.4 74.9 74.1 78.0 73.3 76.7 75.1 75.7 75.2 73.8 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 10 2.8 2.0 0.6 2.5 2.6 1.1 3.1 1.9 3.2 3.2 2.8 2.8 3.5 3.5 4.1 S- 12 -0.6 -1.4 -3.3 -1.2 0.2 -1.7 -0.3 -2.2 0.5 -0.9 -0.5 0.0 -0.2 -0.9 0.6 S- 9 8.0 7.3 5.8 7.9 7.0 5.2 8.6 7.7 7.6 8.2 8.4 8.4 8.5 8.6 9.3 S- 13 0.5 0.3 -1.5 -0.4 0.8 -0.5 2.0 -0.5 2.1 1.1 0.5 1.5 1.3 0.5 2.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.47 2.02 2.67 2.66 1.94 3.29 74.39 72.15 2.25 74.79 72.15 2.64 0.40 12 -0.91-1.25-0.60-0.79-1.50-0.20 75.47-1.07 75.59-0.80 0.28 9 7.36 6.98 7.20 7.45 7.05 8.41 67.31 7.08 67.04 7.75 0.67 13 0.29-0.51 0.50 0.59-0.13 1.34 74.61-0.22 74.11 0.68 0.90 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.35 1.30 1.16 1.15 1.01 1.60 1.40 1.14 1.14 12 1.23 1.04 1.11 1.25 1.28 1.15 9 1.42 1.45 0.80 1.53 1.05 1.31 13 1.48 1.32 0.88 1.49 1.08 1.22 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.92(F 10 - 72.15)(1.14) + 74.79 0.89(F 12 - 75.59)(1.28) + 74.79 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 6 0.821 0.775 0.717 0.705 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 78.5 76.6 74.6 78.7 79.6 77.0 78.6 77.5 79.5 76.9 80.1 78.8 80.0 78.0 77.8 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 S- 10 2.4 1.4 0.2 2.1 2.1 0.9 2.7 1.7 2.7 2.9 2.9 2.6 3.5 3.2 3.8 S- 9 7.1 6.1 5.4 7.7 6.9 4.9 7.8 7.2 7.5 8.3 8.0 7.6 7.6 8.2 8.7 S- 7 4.2 3.5 2.6 5.3 5.0 2.1 5.4 4.3 4.8 6.2 5.8 4.8 5.5 5.6 5.7 S- 6 5.6 5.8 5.7 7.9 7.2 4.1 7.9 7.7 6.5 8.9 8.2 7.8 6.6 7.5 8.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.25 1.90 2.38 2.54 1.59 3.08 77.48 75.44 2.04 78.14 75.81 2.34 0.30 9 7.18 6.85 7.15 7.52 6.63 7.99 70.51 6.97 70.87 7.27 0.30 7 4.55 4.44 4.31 4.77 4.04 5.51 73.07 4.41 73.42 4.73 0.32 6 6.83 6.39 6.73 7.15 6.47 7.70 70.99 6.49 71.09 7.05 0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.30 1.07 1.09 0.93 1.17 1.44 1.08 1.33 1.14 9 1.17 1.06 1.03 1.25 1.15 1.12 7 1.05 0.92 1.19 1.18 1.21 1.02 6 1.34 1.30 0.84 1.57 0.91 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.91(F 10 - 75.81)(1.33) + 78.14 0.88(F 9 - 70.87)(1.15) + 78.14 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.859 0.786 0.767 0.748 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 77.7 73.3 73.3 77.0 78.2 75.6 76.8 75.7 78.0 76.8 79.3 76.3 78.8 76.3 77.4 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 S- 10 2.3 0.8 -0.1 2.2 1.9 0.9 2.8 1.4 2.6 3.0 3.0 2.6 3.6 3.2 4.0 S- 12 -0.6 -2.4 -3.3 -1.6 -0.7 -2.2 -0.3 -2.5 0.0 -1.0 0.0 -0.1 1.1 -0.4 0.5 S- 13 0.6 -0.8 -1.2 -0.1 0.5 -0.5 1.9 -1.2 1.8 1.4 1.0 1.8 2.2 1.2 2.0 S- 9 7.6 5.9 4.9 7.2 7.3 4.8 7.8 6.6 7.8 8.5 8.1 7.9 8.4 8.7 9.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.19 1.84 2.22 2.60 1.46 3.13 76.28 74.33 1.95 76.71 74.43 2.28 0.33 12 -0.81-1.04-0.75-0.23-1.77 0.01 77.28-1.00 77.61-0.90 0.10 13 0.54-0.12 0.61 1.15-0.25 1.64 76.22 0.06 76.00 0.70 0.64 9 7.27 6.84 7.17 7.83 6.44 8.43 69.36 6.92 69.30 7.40 0.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.60 1.24 1.33 1.12 1.19 1.67 1.08 1.54 1.29 12 1.09 0.92 1.44 0.97 1.72 1.20 13 1.32 1.12 1.19 1.23 1.35 1.14 9 1.38 1.36 0.98 1.21 1.38 1.41 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.93(F 10 - 74.43)(1.54) + 76.71 0.89(F 12 - 77.61)(1.72) + 76.71 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 13 9 0.856 0.790 0.774 0.773 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.3 69.7 69.4 70.9 69.1 66.8 71.0 70.3 71.4 69.5 71.9 69.0 72.9 71.0 71.0 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 10 2.3 0.4 0.6 2.3 1.8 0.7 2.9 1.7 3.0 3.3 3.3 2.6 3.8 3.7 4.0 S- 7 4.9 3.4 3.5 5.8 5.4 3.2 5.6 4.7 5.7 7.0 7.0 5.7 6.1 6.3 6.7 S- 13 0.6 -1.3 -0.9 0.4 0.2 -1.4 1.7 -0.8 1.8 1.6 1.4 1.1 2.4 2.3 2.0 S- 9 7.6 5.4 5.7 7.6 7.2 5.5 8.4 7.1 8.0 8.5 8.6 7.7 8.8 8.9 9.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.31 1.80 2.27 2.79 1.61 3.39 70.15 68.22 1.93 70.35 67.92 2.43 0.50 7 5.20 4.74 4.86 5.90 4.49 6.36 65.38 4.77 64.95 5.40 0.63 13 0.53-0.27 0.55 1.24-0.26 1.79 70.25-0.09 69.62 0.73 0.82 9 7.54 6.98 7.39 8.28 6.74 8.61 63.15 7.00 62.70 7.65 0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.65 1.42 1.50 1.31 1.14 1.43 1.07 1.34 1.17 7 1.41 1.37 1.09 1.22 1.17 1.07 13 1.44 1.41 1.07 1.10 1.30 1.21 9 1.50 1.33 1.13 1.10 1.30 1.15 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.93(F 10 - 67.92)(1.34) + 70.35 0.89(F 7 - 64.95)(1.17) + 70.35 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.867 0.816 0.801 0.794 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.6 59.5 64.6 63.0 60.2 57.1 62.5 62.7 62.6 62.0 62.7 61.9 62.1 61.1 61.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 S- 10 2.1 -0.1 1.5 2.3 1.7 0.6 2.8 2.0 3.4 3.5 2.5 2.5 3.9 3.8 3.5 S- 9 8.0 5.5 7.1 8.1 7.4 6.0 9.1 7.5 9.2 9.1 9.0 7.8 10.1 10.0 10.0 S- 13 0.7 -2.1 -0.3 -0.1 0.3 -1.8 1.4 -0.2 2.2 1.8 1.2 1.1 2.3 2.1 1.9 S- 12 -2.2 -4.0 -3.8 -3.4 -2.7 -5.1 -2.1 -3.0 -0.5 -1.5 -2.2 -2.1 -0.9 -1.0 -1.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.39 1.83 2.44 2.91 1.73 3.31 61.30 59.27 2.03 61.66 59.25 2.41 0.38 9 8.10 7.59 7.88 8.77 7.34 9.29 53.73 7.57 53.41 8.25 0.67 13 0.53-0.22 0.54 1.10-0.19 1.82 61.38-0.08 60.96 0.70 0.78 12 -2.08-2.53-1.75-1.50-3.04-1.37 63.61-2.31 64.06-2.40 -0.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.66 1.52 0.95 0.78 1.21 1.69 1.55 1.10 0.90 9 1.66 0.90 1.05 1.63 1.04 0.99 13 1.52 0.79 1.19 1.60 1.06 0.88 12 1.57 0.77 1.23 1.65 1.02 0.83 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.93(F 10 - 59.25)(1.10) + 61.66 0.90(F 9 - 53.41)(1.04) + 61.66 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 38 0.914 0.889 0.878 0.869 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.4 53.2 55.3 53.1 50.5 47.4 48.9 55.1 54.2 52.4 50.9 54.1 51.2 52.8 51.4 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 10 1.7 -0.1 2.8 2.0 1.5 0.4 2.4 2.0 3.4 3.4 1.5 2.0 3.6 4.2 2.9 S- 9 8.2 5.5 9.5 8.6 7.0 6.2 9.6 8.3 9.8 9.6 8.0 7.7 10.1 10.2 9.2 S- 12 -4.0 -4.7 -3.5 -4.4 -3.7 -5.4 -3.6 -3.4 -1.1 -2.2 -3.7 -3.0 -2.0 -1.4 -2.4 S- 38 6.2 3.8 7.9 7.0 5.0 3.7 7.6 6.9 7.6 7.7 6.8 5.4 8.6 7.7 7.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.32 1.73 2.46 2.88 1.73 3.01 51.27 49.29 1.98 52.07 49.82 2.25 0.27 9 8.48 7.94 8.50 9.11 7.85 9.24 43.22 8.05 43.56 8.51 0.45 12 -2.88-3.34-2.61-2.16-3.83-2.25 54.38-3.12 55.30-3.23 -0.11 38 6.41 5.77 6.42 7.06 5.79 7.26 45.35 5.92 45.48 6.59 0.68 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.09 1.96 1.45 1.43 1.02 2.16 2.11 1.02 1.01 9 2.15 1.54 0.94 2.26 0.96 1.02 12 1.96 1.49 0.97 2.02 1.07 1.10 38 2.17 1.48 0.98 2.20 0.98 1.00 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 49.82)(1.02) + 52.07 0.94(F 9 - 43.56)(0.96) + 52.07 Station#1864 HOPEWELL , va 4410101 lat/lon 77.30 37.30 14M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.939 0.907 0.902 0.894 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.3 42.4 46.7 44.3 43.4 43.8 43.9 47.7 47.7 47.4 42.5 48.3 42.4 45.8 43.9 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 S- 10 1.2 -0.2 2.5 1.8 1.3 0.3 2.2 1.7 3.2 3.1 1.3 1.9 3.2 4.0 0.4 S- 12 -5.3 -5.6 -3.4 -5.5 -4.4 -6.1 -4.3 -3.9 -1.5 -3.2 -4.9 -3.4 -3.3 -2.6 -5.0 S- 9 8.1 6.6 10.0 8.4 6.9 5.7 9.6 8.2 10.6 9.4 8.8 8.4 9.8 10.6 6.6 S- 13 -1.8 -2.7 0.2 -1.2 -1.0 -2.6 -1.0 -0.2 1.2 1.3 -0.7 0.5 0.6 1.2 -0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.14 1.66 2.53 2.65 1.50 2.45 44.08 42.12 1.96 44.76 42.90 1.87 -0.09 12 -3.81-4.28-3.25-3.34-4.65-3.43 48.06-3.99 48.94-4.17 -0.19 9 8.85 8.35 9.25 9.58 7.98 9.18 35.43 8.65 36.24 8.52 -0.13 13 -0.48-1.39-0.23 0.14-1.11 0.47 45.11-1.04 45.23-0.47 0.57 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.46 2.36 1.81 1.90 0.95 2.22 1.95 1.14 1.20 12 2.40 2.02 0.89 1.66 1.33 1.49 9 2.64 2.20 0.82 2.10 1.06 1.29 13 2.24 1.95 0.93 1.65 1.35 1.45 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.97(F 10 - 42.90)(1.14) + 44.76 0.95(F 12 - 48.94)(1.33) + 44.76 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 43.48 45.10 49.62 57.07 65.99 73.23 77.47 76.74 71.73 61.95 53.23 46.74 1952 45.22 46.50 51.57 59.44 69.28 76.17 79.89 77.86 70.24 61.27 51.26 47.19 1953 45.47 48.29 52.54 60.79 68.77 75.90 78.16 77.64 71.84 62.81 53.59 46.18 1954 44.78 45.95 52.82 58.52 67.42 73.31 77.99 77.70 72.98 63.12 51.72 42.47 1955 39.89 43.76 51.61 60.41 67.12 74.30 78.43 78.80 72.32 62.33 50.24 41.50 1956 39.63 43.35 49.71 56.36 65.72 73.12 77.23 75.62 70.69 61.93 55.60 47.16 1957 45.00 43.84 52.12 60.07 69.93 75.49 78.06 76.91 69.46 61.89 52.48 45.37 1958 39.66 38.79 46.11 56.26 65.75 73.67 77.63 77.26 70.48 62.79 50.92 43.30 1959 39.30 43.99 51.18 59.88 69.01 75.21 78.88 78.14 73.56 63.71 54.15 46.16 1960 43.13 40.85 47.82 56.01 68.26 73.18 77.35 76.18 70.26 60.83 48.58 39.87 1961 37.11 42.55 49.17 55.56 62.44 70.72 75.52 76.37 70.13 61.86 50.70 43.50 1962 40.22 41.68 47.78 56.38 65.54 71.31 73.58 71.98 67.69 58.81 48.21 39.91 1963 36.07 41.47 48.97 57.85 64.85 70.95 74.88 72.91 67.30 59.70 49.22 42.72 1964 38.46 43.35 48.12 56.85 64.86 72.51 75.18 74.14 66.69 59.89 51.65 46.02 1965 41.80 41.13 45.92 55.13 64.57 71.89 74.47 74.63 69.08 60.71 50.60 42.53 1966 38.71 40.91 47.33 55.04 62.88 70.74 74.90 74.08 67.66 59.31 50.08 45.07 1967 41.59 44.22 49.19 55.91 62.85 68.54 73.31 71.72 65.57 56.04 48.94 41.52 1968 37.81 39.72 46.62 56.10 64.17 71.88 77.66 76.86 71.71 62.92 52.62 43.95 1969 39.23 40.64 47.79 56.63 67.40 74.29 77.30 74.74 68.24 58.94 49.02 39.63 1970 36.61 38.00 45.50 55.13 65.84 73.19 76.36 75.81 71.22 62.55 52.72 43.82 1971 41.59 42.31 48.60 55.33 65.13 72.71 76.64 75.93 71.59 63.16 55.87 48.98 1972 45.67 44.54 48.39 56.23 63.87 71.15 74.81 75.10 68.79 60.49 52.46 45.57 1973 41.77 43.16 49.40 58.13 66.15 73.29 77.72 77.27 72.17 63.93 54.53 49.52 1974 46.12 48.06 51.71 59.06 65.69 71.71 75.66 75.32 68.54 60.02 51.50 47.29 1975 44.83 45.78 48.61 56.10 65.43 73.14 77.14 75.88 71.23 63.34 53.81 45.29 1976 43.51 46.73 54.06 58.98 66.03 72.22 75.86 74.24 66.38 55.49 45.48 36.74 1977 36.11 41.71 52.90 61.42 67.86 74.43 78.69 79.37 72.78 64.30 53.22 45.02 1978 37.24 37.67 44.11 55.19 65.41 72.24 78.32 77.62 71.78 62.86 53.40 46.37 1979 39.09 40.88 47.10 58.01 65.09 71.99 75.84 75.99 69.66 61.69 52.01 44.93 1980 38.66 39.71 46.45 56.88 66.42 74.33 79.33 79.91 73.02 62.11 50.88 41.14 1981 39.12 40.30 49.92 57.48 68.85 75.54 78.75 76.11 68.96 60.38 49.86 41.43 1982 37.88 39.67 46.33 56.22 65.01 72.31 74.00 73.97 68.59 61.91 54.38 47.55 1983 43.26 44.28 49.91 58.46 66.30 74.64 79.24 78.80 72.74 63.70 53.09 43.90 1984 41.98 43.52 50.29 57.15 67.44 74.30 78.03 75.99 72.93 63.16 56.31 45.17 1985 42.28 42.79 52.53 61.61 68.78 74.04 76.50 76.04 71.41 65.34 54.83 46.02 1986 40.99 44.61 50.72 59.04 67.55 75.44 78.57 77.20 71.52 63.26 53.51 44.71 1987 40.00 40.83 46.55 56.19 66.48 75.25 79.26 78.55 70.24 62.06 53.00 46.17 1988 42.22 43.28 50.01 57.98 66.09 73.99 78.53 76.85 68.87 59.95 51.08 47.30 1989 44.01 46.19 49.85 56.76 66.20 73.37 77.65 76.12 71.14 62.27 49.24 44.10 1990 43.54 50.02 53.32 58.58 66.13 74.14 78.76 77.35 71.56 63.44 56.68 49.61 1991 46.54 46.73 52.44 60.88 68.81 75.53 77.96 76.67 69.89 60.80 52.46 46.03 1992 43.72 44.26 49.48 55.19 62.90 70.56 74.92 75.40 68.02 61.28 51.63 46.53 1993 41.75 42.96 47.80 57.43 67.22 75.98 79.69 78.96 71.51 62.68 51.76 43.28 1994 39.75 43.19 52.65 59.13 68.02 73.74 78.01 75.57 68.36 61.49 53.90 48.07 1995 43.05 43.72 48.96 57.50 65.59 73.21 77.99 77.12 71.11 60.57 50.14 41.46 1996 38.82 40.38 47.35 55.81 66.06 72.49 75.53 74.44 68.93 59.29 50.85 43.91 1997 44.03 45.71 50.27 55.94 62.82 70.99 75.01 74.72 68.87 60.34 50.71 43.43 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.957 0.933 0.929 0.911 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.3 42.0 42.3 41.0 40.0 42.2 44.0 43.5 46.5 43.7 41.8 39.8 43.0 38.8 44.0 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3 S- 10 2.6 3.5 2.0 2.0 1.7 4.1 3.3 2.6 3.1 1.0 1.4 2.2 1.6 1.6 2.2 S- 9 8.0 10.6 9.4 9.5 7.6 10.1 9.5 9.8 10.2 8.0 7.9 9.4 8.9 8.2 8.6 S- 7 7.0 9.2 7.4 8.7 6.8 9.4 9.0 9.0 9.2 7.3 7.4 9.4 7.2 7.4 7.3 S- 12 -3.2 -3.2 -4.2 -4.9 -5.0 -2.1 -3.6 -4.2 -3.1 -4.9 -5.2 -5.1 -4.1 -5.7 -4.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.01 2.18 1.32 2.16 2.49 1.87 41.28 39.40 1.89 42.40 40.07 2.32 0.44 9 8.90 8.78 8.38 9.40 9.14 8.74 32.62 8.66 33.35 9.05 0.39 7 7.90 7.81 7.40 8.32 8.10 7.89 33.45 7.83 34.28 8.12 0.29 12 -4.54-4.18-5.26-4.61-4.06-4.62 45.96-4.68 46.58-4.18 0.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.85 2.48 2.97 2.49 1.19 1.91 1.82 1.05 0.88 9 2.89 2.99 0.99 1.85 1.03 1.04 7 2.52 2.68 1.11 2.00 0.96 0.86 12 2.62 2.72 1.09 1.56 1.23 1.12 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(1.05) + 42.40 0.97(F 9 - 33.35)(1.03) + 42.40 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.954 0.912 0.908 0.905 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.3 43.5 42.8 44.6 40.8 43.3 46.2 50.0 46.7 44.3 43.0 43.2 43.7 40.4 45.7 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 S- 10 2.5 2.9 1.9 2.1 0.6 3.4 2.7 1.8 1.8 0.6 1.4 2.4 0.8 1.0 1.5 S- 9 8.2 9.7 9.3 8.8 5.5 9.3 8.0 8.0 8.7 7.2 7.7 10.0 7.7 7.6 7.8 S- 13 -0.1 -1.6 -1.9 -2.1 -3.1 0.2 -1.5 -1.3 -1.3 -2.9 -1.8 -2.1 -2.3 -3.0 -3.2 S- 12 -2.8 -4.2 -4.7 -4.9 -5.6 -2.6 -4.6 -4.5 -4.4 -5.5 -5.5 -5.9 -5.1 -6.5 -6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.52 1.72 1.00 1.64 1.86 1.35 43.37 41.89 1.48 44.16 42.35 1.82 0.33 9 8.16 8.40 7.64 8.55 8.09 8.11 35.21 8.16 35.92 8.24 0.08 13 -2.28-2.17-2.75-2.19-1.93-2.37 45.76-2.39 46.03-1.87 0.53 12 -5.17-4.83-5.59-5.26-4.73-5.58 48.54-5.17 49.03-4.87 0.30 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.71 2.45 2.36 2.14 1.10 2.29 2.25 1.02 0.92 9 2.79 2.46 0.96 2.36 0.97 1.01 13 2.57 2.47 0.96 2.21 1.04 1.08 12 2.68 2.35 1.00 2.27 1.01 1.01 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.35)(1.02) + 44.16 0.96(F 9 - 35.92)(0.97) + 44.16 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.926 0.880 0.858 0.827 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 49.9 50.3 52.5 50.7 46.5 50.0 49.8 53.3 52.4 49.5 47.8 52.7 49.0 47.3 50.3 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 2.6 2.7 2.1 1.2 0.2 2.5 1.9 1.0 1.2 0.4 1.6 2.4 0.4 1.0 0.9 S- 7 7.1 8.3 7.3 7.6 4.0 7.4 7.6 6.8 6.5 6.8 7.7 9.6 6.4 6.1 5.8 S- 9 8.0 8.8 8.9 6.6 4.7 8.1 7.7 7.1 7.2 6.3 7.9 9.1 6.8 7.5 6.9 S- 13 -0.2 -1.0 -1.2 -3.5 -3.4 -1.1 -2.4 -2.1 -2.4 -3.0 -1.2 -1.3 -3.6 -2.7 -3.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.17 1.64 0.46 1.21 1.42 1.12 49.67 48.40 1.28 50.14 48.67 1.47 0.19 7 6.71 7.10 6.12 6.80 6.63 6.99 42.80 6.87 43.14 7.00 0.13 9 7.23 7.98 6.25 7.38 7.22 7.39 42.19 7.48 42.70 7.44 -0.04 13 -2.60-1.97-3.57-2.59-2.33-2.52 52.13-2.46 52.32-2.17 0.28 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.35 1.97 2.17 1.95 1.11 1.93 1.80 1.07 0.97 7 1.89 1.67 1.30 1.66 1.16 0.89 9 2.04 2.10 1.03 1.69 1.14 1.11 13 1.96 2.04 1.06 1.92 1.01 0.95 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.96(F 10 - 48.67)(1.07) + 50.14 0.94(F 7 - 43.14)(1.16) + 50.14 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 8 0.863 0.837 0.726 0.723 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.5 57.2 61.6 59.0 56.2 58.0 56.8 58.6 60.9 55.2 57.4 59.1 57.5 55.8 55.9 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3 S- 10 3.0 2.9 2.4 1.4 0.2 2.3 1.5 0.7 1.0 0.1 1.8 1.9 0.2 0.9 0.9 S- 7 7.1 8.0 6.8 5.3 3.4 6.1 5.9 5.7 5.4 5.2 6.5 7.2 5.1 5.8 5.2 S- 12 -1.6 -3.5 -2.0 -3.9 -4.3 -2.7 -4.1 -4.7 -4.3 -4.7 -2.7 -3.5 -6.1 -5.0 -5.8 S- 8 12.3 13.9 12.0 9.8 6.9 10.6 11.0 10.5 9.4 9.2 10.8 13.1 10.4 10.6 10.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.03 1.56-0.01 1.03 1.58 0.96 57.77 56.76 1.01 57.84 56.44 1.41 0.40 7 5.63 6.34 4.75 5.48 5.85 5.77 52.01 5.77 51.92 5.92 0.15 12 -4.27-3.50-5.44-4.29-3.62-4.60 61.92-4.15 61.78-3.93 0.21 8 10.4111.12 9.2810.4210.6810.60 47.2510.52 47.0910.75 0.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.81 1.52 1.86 1.54 1.21 1.77 1.62 1.09 0.90 7 1.59 1.43 1.30 1.74 1.02 0.79 12 1.46 1.46 1.27 1.58 1.12 0.88 8 1.74 1.57 1.18 2.03 0.87 0.74 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.93(F 10 - 56.44)(1.09) + 57.84 0.92(F 7 - 51.92)(1.02) + 57.84 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 4 0.893 0.876 0.799 0.788 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.3 67.4 68.8 67.6 66.5 66.1 66.2 66.1 68.8 62.9 67.2 68.0 65.6 66.1 62.8 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9 S- 10 3.1 2.9 2.0 0.8 1.1 2.3 1.6 1.1 0.9 0.2 1.8 1.7 0.6 0.8 1.1 S- 7 6.1 6.5 6.0 4.5 4.1 5.1 5.0 4.9 4.1 3.9 5.5 5.0 4.6 4.7 3.7 S- 12 -0.7 -1.3 -2.0 -3.4 -2.6 -1.8 -2.7 -3.7 -3.1 -4.1 -1.7 -1.9 -4.6 -3.8 -3.3 S- 4 10.2 11.2 12.1 9.8 8.9 9.8 9.8 10.3 8.8 7.9 10.0 10.5 10.0 9.8 7.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.15 1.63 0.00 1.30 1.77 1.01 66.63 65.60 1.04 66.43 64.96 1.47 0.43 7 4.71 5.49 3.50 4.71 5.29 4.51 61.88 4.75 61.50 4.92 0.17 12 -3.08-2.44-4.32-3.06-2.44-3.20 69.77-3.14 69.13-2.71 0.43 4 9.6810.75 8.56 9.4110.29 9.26 56.71 9.93 56.63 9.79 -0.14 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.83 1.42 2.05 1.39 1.47 1.70 1.58 1.07 0.73 7 1.33 1.27 1.61 1.46 1.16 0.72 12 1.33 1.16 1.77 1.56 1.09 0.62 4 1.27 1.27 1.61 1.24 1.37 0.85 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 64.96)(1.07) + 66.43 0.94(F 7 - 61.50)(1.16) + 66.43 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 7 13 0.856 0.805 0.781 0.774 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.6 74.3 74.0 75.4 75.3 74.0 73.4 74.1 75.5 70.6 76.0 73.7 73.2 72.5 71.0 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 S- 10 3.3 2.9 2.2 1.5 1.3 2.7 1.6 2.0 0.8 0.5 2.2 1.4 1.0 0.8 1.3 S- 12 -0.1 -0.5 -1.6 -2.2 -1.2 -0.1 -1.9 -2.2 -2.0 -3.6 -1.2 -1.4 -2.6 -3.5 -2.2 S- 7 5.7 5.8 5.0 4.4 4.1 3.9 4.3 5.2 3.3 3.7 5.5 3.9 3.7 4.4 3.5 S- 13 1.0 1.2 0.2 -1.4 -0.6 1.1 0.5 -0.4 -0.3 -1.6 -0.1 0.2 -1.1 -2.2 -0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.44 1.82 0.32 1.74 2.08 1.14 73.40 72.15 1.25 73.84 72.15 1.70 0.45 12 -1.94-1.46-2.95-1.71-1.36-2.35 75.47-2.07 75.59-1.75 0.32 7 4.12 4.80 2.74 4.21 4.78 4.00 69.39 4.00 69.42 4.42 0.42 13 -0.73-0.72-1.85-0.33 0.02-0.81 74.61-1.21 74.11-0.27 0.94 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.69 1.30 1.70 1.15 1.47 1.51 1.40 1.08 0.73 12 1.23 1.04 1.63 1.25 1.21 0.74 7 1.20 1.07 1.58 1.38 1.09 0.69 13 1.48 1.32 1.29 1.49 1.02 0.79 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.93(F 10 - 72.15)(1.08) + 73.84 0.90(F 12 - 75.59)(1.21) + 73.84 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 11 0.895 0.822 0.812 0.808 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 79.2 78.0 76.5 78.6 79.3 78.5 77.7 78.8 78.0 74.9 79.7 78.0 78.0 75.5 75.0 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 S- 10 3.1 2.9 2.1 1.9 1.7 2.5 1.8 3.0 1.2 0.9 2.5 1.8 1.5 0.8 1.0 S- 13 1.2 1.5 0.2 -0.7 0.2 1.1 0.9 0.6 0.4 -0.8 0.4 1.0 0.2 -1.3 -0.6 S- 12 0.5 0.1 -1.5 -1.5 -0.6 0.2 -1.0 -0.7 -1.2 -3.0 -0.4 -0.5 -0.8 -2.4 -1.9 S- 11 6.4 6.3 5.3 5.0 5.6 6.0 6.1 6.6 5.3 4.8 5.8 5.9 4.9 4.0 4.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.70 2.14 0.60 2.09 2.20 1.37 76.98 75.44 1.54 77.71 75.81 1.90 0.36 13 -0.05-0.04-0.99 0.51 0.36-0.11 77.48-0.50 77.42 0.29 0.78 12 -1.09-0.58-2.11-0.60-0.83-1.44 78.24-1.26 78.68-0.97 0.29 11 5.03 5.11 3.96 5.56 5.53 5.01 72.39 4.59 72.21 5.50 0.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.71 1.07 1.76 0.93 1.88 1.48 1.08 1.37 0.73 13 1.24 1.16 1.51 1.16 1.28 0.85 12 1.03 0.92 1.90 0.88 1.69 0.89 11 1.21 1.17 1.50 1.06 1.39 0.93 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.95(F 10 - 75.81)(1.37) + 77.71 0.91(F 13 - 77.42)(1.28) + 77.71 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 13 0.896 0.846 0.846 0.817 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 78.8 76.0 76.0 77.2 78.6 76.8 76.1 77.3 76.7 75.4 79.0 75.6 77.1 74.4 74.7 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 S- 10 3.4 3.4 2.6 2.3 2.3 2.2 2.1 3.1 1.3 1.5 2.6 1.9 2.0 1.3 1.2 S- 9 8.6 8.5 7.6 7.4 7.7 6.1 7.1 8.3 6.5 7.1 7.8 7.2 6.7 6.8 6.9 S- 12 0.5 0.2 -0.6 -1.4 -0.3 -0.9 -1.0 -0.9 -1.3 -2.4 -0.3 -0.8 -0.5 -2.3 -2.2 S- 13 1.6 1.9 1.5 0.0 0.9 0.8 1.2 0.4 0.5 0.0 0.6 1.2 0.6 -0.7 -0.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.97 2.47 0.79 2.22 2.60 1.70 76.19 74.33 1.86 76.65 74.43 2.22 0.36 9 7.05 7.47 5.74 7.45 7.57 7.00 69.36 6.83 69.30 7.35 0.52 12 -1.03-0.41-2.18-0.61-0.63-1.42 77.28-1.09 77.61-0.95 0.14 13 0.31 0.51-0.83 0.76 0.88 0.21 76.22-0.03 76.00 0.65 0.68 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.79 1.24 1.92 1.12 1.72 1.34 1.08 1.24 0.72 9 1.38 1.36 1.42 1.21 1.11 0.79 12 1.09 0.92 2.07 0.97 1.39 0.67 13 1.32 1.12 1.71 1.23 1.09 0.63 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 74.43)(1.24) + 76.65 0.92(F 9 - 69.30)(1.11) + 76.65 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.882 0.845 0.838 0.823 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.7 72.9 71.4 71.5 70.2 68.9 71.1 71.6 69.9 68.0 71.5 68.4 71.1 68.9 68.9 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 10 3.8 3.7 2.6 3.0 3.0 2.7 3.0 3.0 1.5 1.9 2.9 2.0 2.0 1.6 1.8 S- 12 -0.1 0.4 -1.7 -1.2 -0.8 -1.6 -0.7 -1.8 -2.0 -2.6 -1.0 -1.8 -1.6 -2.1 -2.3 S- 13 2.0 1.9 1.1 1.0 1.3 0.7 1.8 0.4 0.2 0.1 1.0 0.5 0.5 0.2 -0.2 S- 9 9.0 8.6 7.7 8.2 8.3 7.5 8.5 8.4 6.4 7.0 8.2 7.1 7.0 6.8 7.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.22 2.73 0.99 2.31 3.04 1.95 70.30 68.22 2.07 70.47 67.92 2.56 0.48 12 -1.48-0.89-2.65-1.14-0.95-1.90 71.85-1.55 71.86-1.39 0.16 13 0.45 0.66-0.74 0.77 1.16 0.35 70.25 0.05 69.62 0.85 0.80 9 7.45 7.91 6.11 7.80 8.16 7.18 63.15 7.14 62.70 7.78 0.63 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.94 1.42 1.96 1.31 1.49 1.52 1.07 1.43 0.96 12 1.30 1.13 1.73 1.01 1.51 0.87 13 1.44 1.41 1.39 1.10 1.38 0.99 9 1.50 1.33 1.47 1.10 1.39 0.94 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 67.92)(1.43) + 70.47 0.92(F 12 - 71.86)(1.51) + 70.47 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.877 0.848 0.842 0.818 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 63.7 63.2 65.3 63.3 62.1 60.0 62.3 63.4 60.8 61.3 62.7 61.5 60.6 59.3 60.3 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 S- 10 4.2 3.6 2.2 2.6 3.6 3.5 2.6 2.7 1.6 2.7 2.5 2.1 2.4 2.0 2.4 S- 12 -0.1 -0.3 -3.1 -3.1 -0.8 -2.2 -2.3 -2.2 -2.3 -2.3 -2.2 -2.5 -2.4 -2.9 -2.5 S- 13 2.8 1.6 0.4 0.2 2.2 1.1 1.2 0.6 0.4 1.0 1.2 0.7 0.8 0.3 0.8 S- 9 10.1 9.2 7.8 8.4 9.4 8.9 8.9 8.3 7.4 8.3 9.0 7.3 8.6 8.2 8.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.39 2.88 1.26 2.40 3.12 2.24 61.57 59.27 2.30 61.98 59.25 2.72 0.42 12 -2.08-1.48-2.93-2.01-1.65-2.44 63.61-2.04 64.06-2.08 -0.05 13 0.53 0.83-0.63 0.58 1.20 0.75 61.38 0.20 60.96 1.02 0.82 9 8.10 8.64 6.70 8.25 8.73 8.22 53.73 7.84 53.41 8.56 0.72 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.93 1.52 1.33 0.78 1.69 1.59 1.55 1.03 0.61 12 1.57 0.77 1.72 1.65 0.96 0.56 13 1.52 0.79 1.67 1.60 0.99 0.60 9 1.66 0.90 1.47 1.63 0.98 0.66 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 59.25)(1.03) + 61.98 0.92(F 12 - 64.06)(0.96) + 61.98 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 12 0.910 0.894 0.887 0.883 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.1 56.3 54.8 53.5 53.0 51.1 49.2 56.7 52.5 51.6 51.8 53.9 50.1 50.8 50.7 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 S- 10 4.4 3.0 2.3 2.4 4.0 4.0 2.7 3.6 1.7 2.6 2.3 1.9 2.6 2.2 2.2 S- 7 8.4 7.4 8.0 7.6 8.0 7.6 7.7 7.7 6.0 7.2 7.1 6.1 6.7 6.2 5.5 S- 9 10.9 8.6 9.0 9.0 9.5 9.9 9.9 10.0 8.0 8.8 8.9 7.6 9.1 8.2 8.5 S- 12 -1.3 -1.5 -3.9 -4.0 -1.1 -1.8 -3.3 -1.8 -2.8 -3.0 -2.9 -3.2 -3.0 -3.4 -3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.43 2.72 1.42 2.50 3.21 2.20 51.48 49.29 2.19 52.61 49.82 2.79 0.61 7 6.67 6.84 5.65 6.87 7.50 6.41 45.16 6.31 45.46 7.15 0.84 9 8.58 8.93 7.46 8.74 9.32 8.43 43.22 8.26 43.56 9.05 0.79 12 -2.77-2.36-3.65-2.54-2.35-3.06 54.38-2.91 55.30-2.68 0.22 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.27 1.96 2.00 1.43 1.40 2.10 2.11 1.00 0.71 7 1.92 1.48 1.35 1.99 1.06 0.78 9 2.15 1.54 1.30 2.26 0.93 0.72 12 1.96 1.49 1.34 2.02 1.04 0.78 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.95(F 10 - 49.82)(1.00) + 52.61 0.95(F 7 - 45.46)(1.06) + 52.61 Station#1865 LANGLEY/AFB , va 4472001 lat/lon 76.35 37.08 24M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.943 0.935 0.924 0.911 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.9 45.2 46.0 44.7 46.2 47.3 44.1 49.6 46.0 46.5 43.3 48.1 41.5 43.9 43.4 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 S- 10 3.8 2.6 1.8 2.2 4.1 3.9 2.4 3.6 1.5 2.3 2.1 1.7 2.3 2.1 -0.1 S- 9 10.7 9.4 9.3 8.8 9.7 9.3 9.8 10.1 8.9 8.5 9.6 8.2 8.8 8.8 6.1 S- 12 -2.7 -2.8 -4.1 -5.1 -1.6 -2.5 -4.1 -2.0 -3.2 -4.1 -4.2 -3.6 -4.3 -4.5 -5.5 S- 7 8.9 7.4 7.7 7.8 9.1 8.5 8.3 9.3 6.9 7.5 8.3 6.2 7.6 6.9 3.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.18 2.26 1.48 2.35 2.98 1.69 44.04 42.12 1.92 45.31 42.90 2.42 0.50 9 8.89 8.95 8.20 9.29 9.47 8.42 35.43 8.61 36.24 9.07 0.46 12 -3.77-3.68-4.30-3.64-3.16-4.18 48.06-4.02 48.94-3.62 0.40 7 7.37 7.39 6.78 7.68 8.11 6.70 36.91 7.13 37.72 7.59 0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.72 2.36 2.45 1.90 1.29 2.03 1.95 1.04 0.81 9 2.64 2.20 1.11 2.10 0.96 0.87 12 2.40 2.02 1.21 1.66 1.22 1.00 7 2.43 1.96 1.25 2.15 0.94 0.75 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 42.90)(1.04) + 45.31 0.97(F 9 - 36.24)(0.96) + 45.31 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 42.64 45.39 50.35 57.28 65.98 72.63 76.83 75.36 70.30 60.01 50.89 45.05 1952 44.26 46.00 50.68 58.31 68.68 75.56 78.75 75.67 67.30 58.80 48.84 45.20 1953 43.57 47.01 51.90 60.76 69.41 76.34 78.18 76.54 70.26 60.39 51.27 44.45 1954 43.62 45.75 53.03 58.66 66.82 71.94 76.82 76.69 71.36 60.90 49.28 41.01 1955 39.57 44.76 52.77 60.92 66.13 72.57 76.26 76.97 69.70 59.55 47.62 40.62 1956 39.44 43.53 49.54 56.95 65.76 72.73 76.11 74.30 68.88 59.56 53.48 45.70 1957 44.43 43.93 52.06 59.56 68.87 74.40 76.99 75.69 67.73 59.62 50.16 43.71 1958 38.64 38.78 46.29 56.30 65.12 72.38 75.66 74.67 67.38 59.90 48.86 42.36 1959 38.61 42.81 50.15 58.89 67.98 73.61 76.80 75.39 69.88 60.56 51.11 44.26 1960 41.23 39.18 46.22 53.97 66.91 71.86 76.50 75.05 69.34 60.00 48.59 40.03 1961 37.74 43.23 49.88 56.30 62.98 71.12 75.61 76.21 69.50 61.39 49.88 42.84 1962 39.03 41.01 47.42 56.85 66.26 72.79 74.80 72.84 67.34 57.99 47.62 39.84 1963 35.20 40.88 48.40 58.69 65.24 71.26 74.91 73.14 66.76 58.52 47.23 41.00 1964 36.59 42.81 49.07 58.64 66.55 72.92 75.63 73.61 65.91 58.13 49.90 44.47 1965 41.41 41.54 48.03 57.97 66.62 72.83 74.90 75.29 68.86 59.59 49.94 42.52 1966 38.91 41.26 48.28 56.91 64.75 72.26 75.58 74.15 66.96 58.32 48.69 44.18 1967 40.17 43.88 49.63 57.44 64.27 69.13 73.30 71.61 65.67 55.98 48.91 41.51 1968 38.18 40.89 48.35 57.67 64.66 71.03 76.08 74.87 69.39 60.51 50.08 41.67 1969 37.34 39.32 47.48 56.28 66.75 72.75 75.58 73.22 66.96 58.06 48.05 39.36 1970 37.21 39.71 48.05 56.61 66.02 71.95 74.75 74.81 69.87 61.41 50.98 42.52 1971 39.44 40.73 47.22 54.69 64.13 70.92 74.51 73.33 69.54 61.21 54.42 47.37 1972 44.40 43.86 48.36 56.24 63.13 69.32 73.10 73.20 66.61 57.55 49.41 43.63 1973 40.87 43.54 49.39 57.24 64.33 70.69 74.86 74.08 69.03 61.14 50.99 46.83 1974 43.57 47.35 51.13 58.79 64.55 69.88 72.73 71.98 65.37 56.79 48.06 43.38 1975 41.79 43.49 47.31 54.89 63.62 70.52 73.87 72.56 68.18 59.97 50.26 41.79 1976 40.74 45.34 52.86 57.59 64.00 69.87 73.33 71.68 64.53 54.68 45.29 36.43 1977 35.67 40.78 52.06 60.45 66.26 72.20 75.78 76.49 69.02 60.18 49.30 41.28 1978 34.95 36.62 45.02 55.42 64.65 70.27 74.24 73.34 67.28 59.69 50.97 44.73 1979 37.74 40.22 47.15 58.33 64.48 69.77 73.34 73.68 68.46 60.60 51.56 44.71 1980 39.24 40.38 47.28 57.36 65.83 72.20 76.69 77.51 70.37 59.27 48.01 39.98 1981 38.82 40.61 50.29 56.94 67.49 72.44 75.15 71.59 64.56 56.79 46.98 39.22 1982 37.32 41.68 49.44 57.71 65.04 71.87 73.30 72.19 66.49 59.76 53.00 45.80 1983 41.83 43.08 48.79 56.55 63.26 71.02 75.73 75.20 69.34 60.35 49.92 41.42 1984 40.08 42.52 49.37 55.66 65.34 71.60 74.93 72.04 68.99 59.17 53.41 42.81 1985 40.97 41.93 51.36 59.82 66.65 71.16 73.32 71.89 67.87 63.67 54.22 45.70 1986 39.76 43.25 50.46 58.19 66.82 74.12 76.97 75.39 69.20 61.68 51.85 43.16 1987 39.12 41.06 46.72 55.59 64.69 73.44 77.07 75.67 66.22 57.31 48.53 42.08 1988 38.34 40.06 47.93 55.62 62.81 69.16 73.64 72.83 65.76 56.42 47.55 44.05 1989 42.30 44.70 48.47 55.20 64.23 71.68 75.75 74.42 68.48 60.04 46.39 41.65 1990 40.76 48.15 51.96 57.65 64.94 72.09 75.35 74.01 67.92 59.96 51.44 44.12 1991 41.64 43.30 49.42 57.96 65.74 73.07 75.35 74.71 67.43 58.78 50.41 45.33 1992 43.10 44.04 49.59 55.85 64.04 71.04 74.66 74.04 66.01 58.39 48.74 43.73 1993 39.78 41.18 45.85 55.37 64.96 73.43 76.70 75.90 67.84 58.80 47.58 39.67 1994 36.59 40.32 49.78 57.06 66.15 72.22 75.54 72.43 64.61 57.96 51.43 46.38 1995 41.76 42.98 48.63 57.63 65.55 72.93 77.23 75.74 69.52 57.79 46.55 38.21 1996 36.82 39.00 46.03 54.71 65.53 71.77 74.59 72.69 66.89 56.84 48.67 41.67 1997 41.64 43.69 48.87 55.04 62.07 70.19 74.19 73.32 66.61 57.17 47.91 41.39 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 7 0.950 0.936 0.933 0.926 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.8 40.1 41.0 39.8 39.1 38.3 42.3 40.8 41.6 43.1 39.8 36.6 41.8 36.8 41.6 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 S- 10 1.1 1.6 0.7 0.8 0.8 0.2 1.6 -0.2 -1.8 0.4 -0.6 -1.0 0.3 -0.4 -0.2 S- 9 6.6 8.7 8.1 8.2 6.7 6.2 7.8 7.1 5.3 7.4 5.9 6.3 7.6 6.2 6.2 S- 13 -1.5 -1.7 -2.5 -2.8 -2.3 -2.6 -2.0 -3.9 -4.2 -2.9 -3.1 -4.5 -1.9 -4.0 -3.1 S- 7 5.6 7.3 6.1 7.4 6.0 5.5 7.3 6.2 4.2 6.7 5.4 6.2 6.0 5.4 4.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.65 1.23 0.74 0.54 0.89-0.46 40.40 39.40 1.00 40.30 40.07 0.23 -0.78 9 7.54 7.83 7.79 7.78 7.54 6.41 32.62 7.78 33.35 6.95 -0.83 13 -2.66-2.32-2.69-2.72-2.42-3.39 42.99-2.59 43.16-2.86 -0.27 7 6.54 6.85 6.82 6.70 6.50 5.56 33.45 6.95 34.28 6.02 -0.92 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.47 2.48 2.79 2.49 1.12 1.87 1.82 1.02 0.92 9 2.89 2.99 0.93 1.85 1.01 1.08 13 2.54 2.78 1.00 1.66 1.12 1.12 7 2.52 2.68 1.04 2.00 0.93 0.90 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 40.07)(1.02) + 40.30 0.97(F 9 - 33.35)(1.01) + 40.30 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.953 0.939 0.934 0.930 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.1 42.5 41.9 43.3 41.1 40.1 44.7 48.2 43.3 44.0 41.2 40.3 43.0 39.0 43.7 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 1.3 1.9 1.0 0.7 0.8 0.2 1.2 -0.1 -1.7 0.4 -0.4 -0.5 0.0 -0.4 -0.5 S- 13 -1.3 -2.6 -2.7 -3.4 -2.8 -3.0 -3.0 -3.2 -4.7 -3.1 -3.6 -5.0 -3.0 -4.4 -5.2 S- 9 7.0 8.7 8.5 7.4 5.7 6.1 6.5 6.2 5.3 7.0 6.0 7.2 7.0 6.2 5.8 S- 38 4.3 6.7 7.1 4.6 2.3 4.2 4.3 3.9 3.3 4.4 4.0 5.4 4.7 4.3 3.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.85 1.39 1.08 0.82 1.02-0.43 43.11 41.89 1.22 42.62 42.35 0.27 -0.95 13 -2.95-2.50-2.66-3.01-2.78-4.15 45.76-2.66 46.03-3.41 -0.76 9 7.49 8.08 7.73 7.73 7.25 6.34 35.21 7.90 35.92 6.70 -1.20 38 5.22 5.55 5.49 5.66 4.83 4.27 37.64 5.47 38.13 4.48 -0.98 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.42 2.45 2.39 2.14 1.12 2.15 2.25 0.96 0.86 13 2.57 2.47 0.97 2.21 0.97 1.01 9 2.79 2.46 0.97 2.36 0.91 0.93 38 3.03 2.71 0.88 2.54 0.85 0.96 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.98(F 10 - 42.35)(0.96) + 42.62 0.97(F 13 - 46.03)(0.97) + 42.62 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.916 0.892 0.888 0.871 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.8 49.4 51.4 50.5 46.7 47.9 48.5 52.0 49.4 49.6 45.8 49.8 48.6 46.0 48.9 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 10 1.5 1.8 1.0 0.9 0.4 0.4 0.5 -0.3 -1.8 0.5 -0.3 -0.5 0.0 -0.4 -0.5 S- 9 6.9 7.9 7.7 6.3 4.8 6.0 6.3 5.8 4.2 6.4 5.9 6.2 6.4 6.2 5.5 S- 13 -1.3 -1.9 -2.4 -3.8 -3.3 -3.2 -3.8 -3.5 -5.4 -2.9 -3.2 -4.2 -3.9 -4.0 -4.8 S- 38 4.3 5.4 5.5 3.5 1.2 4.1 3.6 3.6 1.5 3.4 3.8 4.2 3.5 4.4 3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.90 1.43 1.28 0.86 0.95-0.42 49.72 48.40 1.32 48.88 48.67 0.21 -1.11 9 6.96 7.77 7.07 7.02 6.76 5.85 42.19 7.53 42.70 6.18 -1.35 13 -2.87-2.18-2.75-2.94-2.79-4.06 52.13-2.41 52.32-3.43 -1.03 38 4.33 5.14 4.30 4.36 4.14 3.44 44.93 4.79 45.19 3.69 -1.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.96 1.97 2.10 1.95 1.08 1.69 1.80 0.94 0.88 9 2.04 2.10 1.00 1.69 1.00 1.00 13 1.96 2.04 1.03 1.92 0.88 0.86 38 2.21 2.29 0.92 1.81 0.93 1.02 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 48.67)(0.94) + 48.88 0.94(F 9 - 42.70)(1.00) + 48.88 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 11 0.881 0.868 0.829 0.816 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.5 55.7 59.8 58.2 55.6 55.6 55.2 57.7 58.0 55.8 55.4 57.1 57.6 54.7 55.0 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 S- 10 1.1 1.4 0.6 0.5 -0.4 -0.1 0.0 -0.3 -2.0 0.7 -0.3 -0.2 0.3 -0.2 0.0 S- 13 -1.5 -2.3 -2.0 -3.0 -3.8 -3.3 -3.4 -3.3 -4.8 -2.1 -2.5 -3.4 -3.8 -3.8 -4.0 S- 9 6.8 7.4 6.1 5.5 3.6 4.6 5.2 5.5 2.8 5.9 5.6 6.5 6.0 5.5 6.2 S- 11 4.1 3.5 3.8 2.7 0.5 1.9 1.5 2.3 0.3 3.0 3.0 3.1 2.0 1.9 1.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.74 1.24 1.27 0.60 0.53-0.22 58.00 56.76 1.24 56.53 56.44 0.09 -1.15 13 -2.65-2.10-2.43-2.71-2.77-3.50 60.19-2.19 59.67-3.14 -0.95 9 6.13 7.02 6.26 5.93 5.76 5.51 51.18 6.82 50.97 5.56 -1.26 11 2.80 3.59 2.70 2.79 2.57 2.18 54.68 3.32 54.16 2.37 -0.95 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.63 1.52 1.75 1.54 1.14 1.41 1.62 0.87 0.77 13 1.53 1.59 1.10 1.57 0.90 0.82 9 1.68 1.70 1.02 1.83 0.77 0.75 11 1.54 1.66 1.05 1.58 0.90 0.85 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.94(F 10 - 56.44)(0.87) + 56.53 0.93(F 13 - 59.67)(0.90) + 56.53 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 12 0.892 0.871 0.854 0.843 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 63.3 65.3 66.7 66.8 64.7 62.8 64.2 64.9 65.7 64.0 65.0 66.2 65.6 65.5 62.1 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 S- 13 -2.2 -1.3 -2.3 -3.2 -3.4 -3.7 -2.4 -2.9 -4.2 -1.2 -2.5 -2.2 -2.6 -2.5 -1.8 S- 10 0.1 0.8 -0.1 0.1 -0.7 -1.0 -0.4 -0.1 -2.2 1.3 -0.4 -0.2 0.6 0.2 0.3 S- 11 3.3 3.9 3.5 2.6 1.4 1.4 3.7 2.8 0.7 3.9 3.1 3.4 3.2 3.0 3.5 S- 12 -3.8 -3.4 -4.1 -4.2 -4.4 -5.0 -4.7 -4.9 -6.2 -2.9 -3.9 -3.7 -4.6 -4.3 -4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -2.34-1.93-2.16-2.63-2.61-2.42 66.62 68.64-2.02 64.85 67.41-2.56 -0.54 10 0.43 1.07 0.87 0.09 0.01-0.05 65.60 1.02 64.96-0.11 -1.13 11 3.00 3.65 2.77 2.76 2.86 2.96 63.26 3.36 61.96 2.89 -0.47 12 -3.81-3.00-3.45-4.27-4.20-4.26 69.77-3.15 69.13-4.28 -1.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.57 1.50 1.59 1.36 1.17 1.32 1.66 0.80 0.68 10 1.42 1.39 1.14 1.58 0.84 0.73 11 1.51 1.45 1.10 1.64 0.81 0.73 12 1.33 1.16 1.37 1.56 0.85 0.62 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.94(F 13 - 67.41)(0.80) + 64.85 0.93(F 10 - 64.96)(0.84) + 64.85 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 10 12 0.880 0.862 0.861 0.818 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.0 71.6 71.2 74.1 73.4 69.2 71.7 72.1 73.1 71.0 73.4 72.2 72.9 71.8 70.2 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 S- 13 -2.6 -1.5 -2.7 -2.7 -2.4 -3.7 -1.2 -2.5 -2.8 -1.1 -2.7 -1.3 -1.4 -2.9 -1.3 S- 11 2.9 3.9 2.6 3.3 2.3 1.2 4.5 3.5 2.1 4.2 3.1 4.2 4.2 2.6 3.7 S- 10 -0.3 0.2 -0.6 0.1 -0.5 -2.1 -0.1 -0.1 -1.7 1.0 -0.4 -0.1 0.7 0.1 0.5 S- 12 -3.7 -3.2 -4.5 -3.5 -3.0 -5.0 -3.6 -4.2 -4.4 -3.1 -3.7 -2.9 -2.9 -4.3 -3.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -2.04-1.67-1.65-2.49-2.43-1.93 73.00 74.61-1.61 71.93 74.11-2.19 -0.57 11 3.19 3.64 3.34 2.67 2.94 3.47 69.39 3.60 68.69 3.24 -0.36 10 0.13 0.86 0.52-0.42-0.36 0.02 72.15 0.85 72.15-0.22 -1.07 12 -3.25-2.41-2.74-3.87-3.80-3.47 75.47-2.47 75.59-3.66 -1.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.52 1.48 1.41 1.32 1.07 1.29 1.49 0.86 0.81 11 1.47 1.43 0.99 1.45 0.89 0.90 10 1.30 1.15 1.22 1.40 0.92 0.75 12 1.23 1.04 1.36 1.25 1.03 0.76 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.94(F 13 - 74.11)(0.86) + 71.93 0.93(F 11 - 68.69)(0.89) + 71.93 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 10 50 0.805 0.799 0.778 0.748 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.7 74.9 73.3 77.0 77.1 73.6 75.8 75.3 75.3 74.7 76.7 75.5 77.2 74.6 74.2 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2 S- 11 2.9 3.2 2.2 3.4 3.4 1.1 4.2 3.2 2.7 4.5 2.8 3.5 4.2 3.1 3.5 S- 13 -2.3 -1.6 -2.9 -2.3 -2.0 -3.8 -1.0 -2.8 -2.2 -1.1 -2.6 -1.5 -0.6 -2.2 -1.4 S- 10 -0.4 -0.2 -1.1 0.3 -0.5 -2.4 -0.2 -0.4 -1.4 0.7 -0.5 -0.7 0.7 -0.2 0.2 S- 50 -1.0 0.0 -1.8 0.0 -0.4 -3.5 1.1 -0.4 -1.0 1.5 -0.6 0.3 0.8 -0.2 0.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 3.32 3.89 3.76 2.80 2.72 3.46 76.32 72.39 3.93 75.40 72.21 3.19 -0.74 13 -1.77-1.26-1.19-2.24-2.45-1.66 77.48-1.16 77.42-2.02 -0.86 10 -0.02 0.92 0.40-0.67-0.61-0.18 75.44 0.88 75.81-0.40 -1.28 50 -0.27 0.04 0.26-0.87-0.79 0.11 76.17 0.15 75.74-0.34 -0.49 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.38 1.21 1.11 1.17 0.94 1.18 1.06 1.11 1.18 13 1.24 1.16 0.95 1.16 1.02 1.07 10 1.07 0.93 1.19 1.08 1.09 0.92 50 1.51 1.63 0.68 1.25 0.94 1.38 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.90(F 11 - 72.21)(1.11) + 75.40 0.89(F 13 - 77.42)(1.02) + 75.40 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 11 38 0.854 0.840 0.818 0.790 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.2 72.0 71.9 75.4 75.7 72.8 74.4 74.0 74.7 74.0 75.9 72.4 75.7 72.7 73.3 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 S- 10 -0.2 -0.5 -1.6 0.5 -0.6 -1.8 0.4 -0.3 -0.7 0.2 -0.4 -1.2 0.6 -0.4 -0.2 S- 13 -2.0 -2.1 -2.7 -1.8 -2.0 -3.3 -0.5 -2.9 -1.5 -1.4 -2.4 -2.0 -0.8 -2.4 -2.1 S- 11 3.3 2.9 2.2 3.2 3.7 1.4 4.2 2.9 3.2 3.9 3.1 3.0 3.9 3.0 3.1 S- 38 0.9 1.7 0.9 2.4 2.9 -0.6 3.1 2.5 2.3 4.2 3.1 2.1 2.4 2.3 2.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.04 0.82 0.44-0.66-0.58-0.31 75.16 74.33 0.83 74.02 74.43-0.41 -1.24 13 -1.70-1.14-1.18-2.12-2.29-1.80 76.22-1.06 76.00-1.99 -0.92 11 3.30 3.78 3.80 2.86 2.74 3.32 71.32 3.84 70.88 3.14 -0.70 38 2.26 2.59 2.74 1.79 1.61 2.71 72.45 2.72 71.83 2.19 -0.53 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.57 1.24 1.21 1.12 1.09 1.36 1.08 1.26 1.16 13 1.32 1.12 1.08 1.23 1.10 1.02 11 1.34 1.14 1.06 1.11 1.22 1.15 38 1.54 1.41 0.86 1.33 1.02 1.19 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.92(F 10 - 74.43)(1.26) + 74.02 0.92(F 13 - 76.00)(1.10) + 74.02 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 7 11 0.913 0.899 0.878 0.868 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.3 69.0 67.9 69.2 66.2 65.8 68.5 67.9 67.4 66.0 67.8 64.6 69.5 66.9 66.6 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 S- 10 0.3 -0.3 -0.9 0.6 -1.0 -0.4 0.4 -0.7 -1.0 -0.2 -0.8 -1.7 0.4 -0.4 -0.4 S- 13 -1.4 -2.1 -2.4 -1.3 -2.7 -2.4 -0.8 -3.2 -2.2 -1.9 -2.7 -3.2 -1.1 -1.8 -2.4 S- 7 2.9 2.7 1.9 4.1 2.5 2.2 3.1 2.3 1.7 3.5 2.9 1.3 2.7 2.2 2.3 S- 11 3.6 2.8 2.3 3.4 2.7 2.7 4.3 2.6 2.2 2.9 2.8 1.2 4.0 2.8 2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.08 0.58 0.18-0.44-0.28-0.59 68.70 68.22 0.48 67.51 67.92-0.40 -0.88 13 -1.85-1.48-1.54-1.99-2.15-2.19 70.25-1.55 69.62-2.11 -0.56 7 2.82 3.52 2.77 2.68 2.60 2.38 65.38 3.32 64.95 2.57 -0.75 11 3.09 3.42 3.38 3.00 2.84 2.67 65.38 3.32 64.65 2.86 -0.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.68 1.42 1.50 1.31 1.14 1.42 1.07 1.33 1.17 13 1.44 1.41 1.06 1.10 1.29 1.22 7 1.41 1.37 1.09 1.22 1.17 1.07 11 1.43 1.27 1.18 1.04 1.37 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 67.92)(1.33) + 67.51 0.95(F 13 - 69.62)(1.29) + 67.51 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 7 0.931 0.926 0.900 0.890 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.3 59.2 63.7 61.7 57.3 56.4 60.0 60.0 58.8 58.4 58.8 58.0 57.8 56.8 57.2 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 S- 10 0.9 -0.4 0.6 1.0 -1.1 0.0 0.4 -0.8 -0.4 -0.2 -1.3 -1.5 -0.4 -0.4 -0.8 S- 13 -0.6 -2.4 -1.3 -1.4 -2.5 -2.4 -1.1 -2.9 -1.6 -1.9 -2.7 -2.9 -1.9 -2.1 -2.4 S- 9 6.7 5.2 6.1 6.8 4.6 5.3 6.6 4.8 5.3 5.4 5.1 3.8 5.8 5.7 5.7 S- 7 3.9 3.1 5.1 5.9 2.6 3.0 4.2 2.7 3.1 4.2 3.6 1.8 2.6 2.9 2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.02 0.55 0.18-0.23 0.09-0.72 59.66 59.27 0.39 58.96 59.25-0.30 -0.69 13 -1.84-1.51-1.72-2.05-1.83-2.21 61.38-1.72 60.96-2.00 -0.28 9 5.73 6.31 5.62 5.62 5.70 5.26 53.73 5.93 53.41 5.54 -0.39 7 3.53 3.97 3.37 3.48 3.68 2.99 55.94 3.72 55.53 3.43 -0.29 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.70 1.52 0.94 0.78 1.20 1.89 1.55 1.22 1.01 13 1.52 0.79 1.19 1.60 1.18 0.99 9 1.66 0.90 1.04 1.63 1.15 1.10 7 1.45 1.11 0.85 1.28 1.48 1.74 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 59.25)(1.22) + 58.96 0.96(F 13 - 60.96)(1.18) + 58.96 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 12 0.947 0.937 0.933 0.915 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 49.9 53.4 54.2 51.8 48.5 47.5 46.4 51.4 50.4 48.7 47.6 51.4 46.5 48.7 47.9 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 S- 13 -0.8 -2.1 -0.6 -1.5 -2.2 -2.1 -2.9 -3.3 -2.0 -1.9 -3.2 -2.1 -3.1 -1.8 -2.0 S- 10 1.2 0.1 1.7 0.8 -0.5 0.5 -0.1 -1.7 -0.3 -0.3 -1.8 -0.6 -1.0 0.0 -0.6 S- 11 4.6 3.0 4.9 3.2 2.5 3.6 3.6 2.3 3.2 3.4 2.0 2.5 2.7 2.8 3.2 S- 12 -4.5 -4.4 -4.6 -5.6 -5.6 -5.3 -6.2 -7.0 -4.9 -5.9 -7.1 -5.7 -6.6 -5.5 -5.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -1.97-1.78-2.07-1.94-1.87-2.29 49.64 51.66-2.02 49.64 51.75-2.11 -0.09 10 0.13 0.56 0.17 0.01 0.34-0.68 49.29 0.35 49.82-0.18 -0.53 11 3.38 3.74 3.29 3.41 3.46 2.84 46.20 3.44 46.46 3.18 -0.27 12 -5.07-4.52-4.90-5.03-5.22-5.94 54.38-4.74 55.30-5.66 -0.92 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.06 1.84 1.59 1.31 1.21 2.34 2.05 1.14 0.94 10 1.96 1.43 1.12 2.11 1.11 0.99 11 2.00 1.44 1.10 2.26 1.04 0.94 12 1.96 1.49 1.07 2.02 1.16 1.09 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.97(F 13 - 51.75)(1.14) + 49.64 0.97(F 10 - 49.82)(1.11) + 49.64 Station#1866 LAWRENCEVILLE/3 E , va 4476802 lat/lon 77.85 36.77 11M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 11 9 0.945 0.941 0.918 0.912 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.4 42.8 45.7 43.2 42.1 44.0 41.7 44.1 45.3 43.7 39.7 46.4 38.2 41.7 41.4 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 13 -1.8 -2.2 -0.8 -2.2 -2.3 -2.3 -3.2 -3.9 -1.1 -2.4 -3.5 -1.4 -3.6 -2.9 -3.4 S- 10 1.3 0.2 1.5 0.7 0.1 0.6 -0.1 -1.9 0.8 -0.5 -1.5 0.0 -1.0 -0.1 -2.1 S- 11 4.1 4.0 5.5 2.3 2.6 2.9 3.5 1.1 4.5 2.4 2.2 3.6 1.7 2.4 1.7 S- 9 8.2 7.0 9.0 7.3 5.7 6.0 7.3 4.6 8.2 5.7 6.0 6.5 5.6 6.5 4.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -2.25-2.15-2.16-2.23-2.22-2.62 42.87 45.11-2.24 42.76 45.23-2.47 -0.23 10 0.37 0.91 0.60 0.28 0.39-0.64 42.12 0.75 42.90-0.14 -0.89 11 3.37 3.77 3.41 3.56 3.27 2.64 39.26 3.61 39.78 2.97 -0.64 9 7.08 7.60 7.32 7.22 6.87 6.09 35.43 7.44 36.24 6.51 -0.93 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.36 2.24 1.92 1.95 0.99 2.16 1.65 1.31 1.32 10 2.36 1.90 1.01 1.95 1.11 1.09 11 2.43 2.14 0.90 1.87 1.16 1.29 9 2.64 2.20 0.88 2.10 1.03 1.17 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.97(F 13 - 45.23)(1.31) + 42.76 0.97(F 10 - 42.90)(1.11) + 42.76 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.52 41.35 46.54 54.32 62.85 69.74 73.15 72.11 67.36 57.07 47.41 41.29 1952 41.16 43.40 48.13 55.45 65.38 72.25 75.30 72.28 64.32 55.66 46.65 42.58 1953 41.13 44.33 49.02 57.65 65.75 72.42 74.21 72.63 67.32 57.84 48.23 40.90 1954 40.12 42.69 50.44 55.86 64.20 68.83 73.40 72.87 67.33 56.97 45.88 38.16 1955 36.96 41.31 49.56 58.39 64.50 70.98 74.12 74.46 66.98 56.40 44.77 37.37 1956 36.69 40.74 47.21 54.73 63.35 70.59 73.61 71.74 65.94 56.57 50.66 42.81 1957 41.96 41.15 49.41 57.03 66.28 71.37 73.61 72.45 65.00 56.68 47.26 40.73 1958 35.62 35.94 43.77 53.84 63.29 70.01 73.59 72.52 65.69 57.46 46.22 39.23 1959 36.55 40.50 47.95 56.85 65.92 72.03 75.14 74.21 68.49 57.97 48.21 41.07 1960 38.07 36.03 43.16 51.64 64.31 69.37 74.17 73.60 68.27 58.55 45.47 36.04 1961 33.54 40.11 47.01 53.58 60.25 68.00 72.87 73.11 67.48 58.92 47.42 39.93 1962 36.79 39.20 45.21 54.70 64.13 70.65 72.24 70.02 65.23 55.79 45.03 35.85 1963 31.59 37.48 46.42 56.71 64.17 69.71 72.78 70.75 65.26 57.04 44.76 37.30 1964 32.82 38.65 45.71 55.94 65.02 71.14 73.67 71.38 63.62 55.54 46.95 41.50 1965 37.69 38.74 45.72 56.23 65.06 70.85 72.54 72.26 65.48 56.47 46.90 38.85 1966 34.79 36.92 44.37 54.36 62.64 70.72 73.49 71.49 64.04 54.94 45.08 39.83 1967 35.73 39.92 46.55 55.02 62.82 67.84 71.99 69.29 62.76 52.73 45.14 37.04 1968 33.51 36.20 45.18 55.17 63.19 69.56 74.19 72.40 66.29 56.97 46.51 38.06 1969 34.52 36.65 44.89 54.08 64.44 70.74 73.33 71.29 64.30 54.58 43.86 35.02 1970 32.62 35.77 45.11 55.15 64.85 71.30 73.73 73.67 68.15 58.81 47.69 38.31 1971 35.45 36.75 44.09 51.91 61.97 68.68 72.47 71.68 68.01 58.88 50.66 42.32 1972 39.24 39.49 45.08 54.18 61.26 67.62 70.88 71.35 64.87 55.53 47.01 40.76 1973 38.04 40.83 47.04 55.12 62.60 69.52 74.18 73.10 67.62 58.77 47.68 43.07 1974 39.96 44.58 48.59 56.90 62.77 68.56 71.43 70.51 63.60 54.47 45.44 40.18 1975 38.36 40.01 44.86 53.75 63.21 70.26 73.25 71.43 66.58 57.59 47.96 39.04 1976 37.73 42.34 50.07 55.56 62.14 68.19 71.69 70.11 62.63 51.64 40.93 31.44 1977 30.28 36.65 48.31 58.15 64.09 70.68 73.76 73.57 65.42 56.25 45.09 36.41 1978 29.98 32.71 42.50 53.66 63.18 69.28 73.87 73.52 66.70 57.30 46.87 39.77 1979 33.86 36.92 44.55 55.76 62.91 68.87 72.44 71.68 65.49 57.21 48.13 41.72 1980 36.60 37.98 44.73 54.88 63.92 71.14 75.29 75.68 68.34 57.52 46.27 37.91 1981 36.14 37.83 47.60 55.21 65.80 70.98 74.63 72.16 65.20 56.12 45.13 36.67 1982 34.44 38.67 46.57 55.78 63.76 71.33 73.00 71.84 66.15 58.11 50.14 41.83 1983 37.74 38.97 45.01 53.09 60.72 68.34 73.31 72.04 65.71 55.91 45.50 37.22 1984 35.71 38.38 45.52 52.09 62.22 68.61 72.57 69.62 66.52 56.54 50.32 39.65 1985 37.59 38.63 48.16 57.28 64.31 68.82 71.04 70.02 65.31 59.51 49.38 41.02 1986 35.96 39.61 47.51 55.66 64.54 71.35 74.09 72.59 66.03 57.52 47.40 38.83 1987 35.27 38.52 45.34 55.60 64.38 72.50 75.76 74.00 65.16 55.65 46.62 39.24 1988 35.48 37.37 46.11 54.80 62.75 69.51 73.82 72.28 63.57 53.42 44.14 40.85 1989 38.73 41.91 46.59 54.05 62.84 69.84 73.45 71.44 65.05 55.97 42.57 38.09 1990 37.98 46.11 50.35 56.18 62.84 69.43 72.98 71.69 65.94 57.45 49.23 42.68 1991 40.54 42.77 49.21 58.13 66.04 72.15 73.53 72.04 65.50 55.94 47.05 40.70 1992 39.47 41.00 46.75 53.30 60.77 67.54 71.04 70.94 63.85 55.73 46.13 41.09 1993 37.54 38.96 44.21 53.72 63.09 70.79 74.32 73.39 65.49 55.85 44.91 37.02 1994 34.07 38.05 47.94 54.91 63.53 68.36 72.59 69.82 62.78 55.15 47.38 41.67 1995 37.40 39.66 46.03 54.85 62.29 68.71 72.88 71.56 65.46 54.39 43.99 35.69 1996 33.71 36.19 44.28 53.49 63.83 69.73 72.70 70.37 64.30 53.51 44.77 37.84 1997 38.23 41.72 47.27 53.33 59.92 68.30 72.61 71.68 64.43 54.48 45.01 38.12 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 13 0.962 0.952 0.948 0.947 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.7 35.7 37.6 36.0 35.3 35.5 38.7 38.0 40.5 39.5 37.5 34.1 37.4 33.7 38.2 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 9 2.5 4.3 4.7 4.4 2.9 3.3 4.2 4.3 4.2 3.7 3.7 3.8 3.2 3.1 2.8 S- 10 -2.9 -2.8 -2.7 -3.0 -3.1 -2.7 -1.9 -2.9 -2.9 -3.3 -2.8 -3.5 -4.1 -3.5 -3.6 S- 38 -0.3 3.2 4.0 2.5 0.2 1.5 2.1 2.1 2.9 1.3 2.0 2.0 1.2 1.2 0.9 S- 13 -5.5 -6.0 -5.9 -6.6 -6.2 -5.4 -5.5 -6.6 -5.3 -6.5 -5.4 -7.0 -6.3 -7.2 -6.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.11 4.91 3.97 3.89 4.12 3.50 37.28 32.62 4.66 37.03 33.35 3.68 -0.98 10 -2.77-1.69-3.08-3.35-2.54-3.37 39.40-2.11 40.07-3.05 -0.93 38 2.11 2.60 1.92 2.14 2.12 1.64 34.82 2.46 35.24 1.79 -0.67 13 -6.09-5.25-6.50-6.61-5.85-6.30 42.99-5.71 43.16-6.13 -0.43 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.73 2.89 2.97 2.99 0.99 1.88 1.85 1.02 1.02 10 2.48 2.49 1.19 1.82 1.03 0.86 38 3.07 3.13 0.95 2.04 0.92 0.97 13 2.54 2.78 1.07 1.66 1.13 1.06 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.98(F 9 - 33.35)(1.02) + 37.03 0.98(F 10 - 40.07)(1.03) + 37.03 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.966 0.962 0.961 0.954 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.0 38.4 38.6 39.6 38.5 37.4 41.9 46.1 42.8 41.0 39.0 38.0 39.7 36.2 41.7 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -2.8 -2.3 -2.3 -2.9 -1.7 -2.5 -1.6 -2.1 -2.2 -2.7 -2.6 -2.7 -3.3 -3.2 -2.5 S- 9 2.9 4.5 5.2 3.8 3.2 3.4 3.7 4.1 4.8 4.0 3.7 4.9 3.6 3.4 3.8 S- 13 -5.4 -6.7 -6.0 -7.1 -5.4 -5.7 -5.8 -5.3 -5.2 -6.2 -5.8 -7.3 -6.3 -7.2 -7.2 S- 38 0.2 2.5 3.8 1.0 -0.2 1.5 1.5 1.9 2.8 1.3 1.8 3.1 1.4 1.4 1.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.25-1.58-2.41-2.59-2.09-2.74 40.11 41.89-1.78 39.86 42.35-2.49 -0.71 9 4.39 5.11 4.24 4.33 4.14 4.03 35.21 4.90 35.92 3.94 -0.96 13 -6.05-5.47-6.15-6.42-5.88-6.46 45.76-5.66 46.03-6.17 -0.52 38 2.11 2.58 2.00 2.25 1.72 1.96 37.64 2.47 38.13 1.72 -0.75 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.64 2.45 2.39 2.14 1.12 2.40 2.25 1.07 0.96 9 2.79 2.46 0.97 2.36 1.02 1.05 13 2.57 2.47 0.97 2.21 1.09 1.13 38 3.03 2.71 0.88 2.54 0.95 1.07 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.35)(1.07) + 39.86 0.98(F 9 - 35.92)(1.02) + 39.86 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.964 0.945 0.943 0.919 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.0 45.5 48.2 47.5 45.3 46.1 46.6 50.3 49.2 46.8 44.2 47.9 46.0 44.3 47.3 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 10 -2.3 -2.1 -2.2 -2.0 -1.0 -1.4 -1.4 -2.0 -2.0 -2.4 -2.0 -2.3 -2.6 -2.1 -2.1 S- 9 3.1 4.1 4.5 3.4 3.5 4.2 4.4 4.2 4.0 3.6 4.3 4.4 3.8 4.4 3.9 S- 13 -5.1 -5.8 -5.6 -6.7 -4.6 -5.0 -5.7 -5.1 -5.6 -5.8 -4.8 -6.0 -6.5 -5.8 -6.4 S- 38 0.5 1.5 2.3 0.6 -0.2 2.3 1.8 2.0 1.3 0.6 2.2 2.4 0.9 2.7 1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.71-1.35-1.56-1.94-1.65-2.20 47.02 48.40-1.38 46.69 48.67-1.99 -0.61 9 4.35 4.99 4.23 4.23 4.16 4.07 42.19 4.83 42.70 3.99 -0.84 13 -5.48-4.97-5.59-5.74-5.39-5.85 52.13-5.11 52.32-5.63 -0.52 38 1.72 2.36 1.46 1.56 1.54 1.65 44.93 2.09 45.19 1.49 -0.60 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.94 1.97 2.04 1.95 1.05 1.70 1.80 0.95 0.90 9 2.04 2.10 0.97 1.69 1.01 1.03 13 1.96 2.04 1.00 1.92 0.89 0.88 38 2.21 2.29 0.89 1.81 0.94 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(0.95) + 46.69 0.97(F 9 - 42.70)(1.01) + 46.69 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 10 38 0.946 0.932 0.932 0.930 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.1 52.1 57.3 55.7 55.6 54.8 54.0 56.2 58.1 53.3 53.7 54.9 54.8 53.5 53.3 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 S- 9 3.3 3.8 3.6 3.0 3.6 3.8 4.0 4.0 3.0 3.3 3.9 4.4 3.2 4.3 4.5 S- 13 -5.0 -5.9 -4.5 -5.5 -3.8 -4.2 -4.5 -4.8 -4.7 -4.7 -4.2 -5.5 -6.6 -5.0 -5.7 S- 10 -2.4 -2.2 -1.9 -2.0 -0.4 -0.9 -1.2 -1.7 -1.8 -1.8 -1.9 -2.3 -2.5 -1.4 -1.7 S- 38 1.0 1.7 0.8 0.3 0.1 1.6 1.1 2.0 0.1 0.5 1.9 2.2 0.5 2.0 2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.00 4.44 4.02 3.82 3.84 3.82 55.53 51.18 4.34 54.70 50.97 3.73 -0.61 13 -4.79-4.69-4.68-4.82-4.69-5.20 60.19-4.66 59.67-4.97 -0.30 10 -1.40-1.34-0.98-1.52-1.39-1.92 56.76-1.24 56.44-1.74 -0.50 38 1.28 1.66 1.15 1.15 1.16 1.32 54.02 1.50 53.51 1.19 -0.32 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.58 1.68 1.70 1.70 1.00 1.60 1.83 0.87 0.88 13 1.53 1.59 1.07 1.57 1.02 0.96 10 1.52 1.54 1.11 1.62 0.99 0.89 38 1.82 1.74 0.98 2.05 0.78 0.80 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.97(F 9 - 50.97)(0.87) + 54.70 0.97(F 13 - 59.67)(1.02) + 54.70 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 9 38 0.944 0.932 0.921 0.908 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.7 62.2 64.3 64.5 64.4 62.8 62.8 62.8 66.0 60.8 63.1 63.5 62.3 63.8 59.9 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 S- 11 0.8 0.8 1.2 0.3 1.0 1.4 2.3 0.7 1.0 0.6 1.2 0.8 -0.1 1.3 1.3 S- 13 -4.7 -4.4 -4.7 -5.4 -3.7 -3.8 -3.8 -5.0 -3.9 -4.4 -4.4 -4.8 -5.8 -4.2 -4.0 S- 9 2.8 2.7 3.1 2.8 3.3 3.4 4.4 3.5 2.3 2.8 3.1 2.9 2.5 3.6 3.8 S- 38 0.5 0.4 0.4 -0.1 0.0 0.6 2.0 1.2 -0.7 0.3 1.4 0.6 -0.2 1.4 1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 1.04 1.07 1.01 1.06 1.15 0.88 64.30 63.26 1.03 62.94 61.96 0.97 -0.06 13 -4.30-4.52-3.91-4.32-4.32-4.50 68.64-4.34 67.41-4.47 -0.13 9 3.49 3.71 3.65 3.43 3.51 3.00 60.56 3.73 59.81 3.13 -0.60 38 0.74 0.77 0.75 0.66 0.89 0.61 63.55 0.75 62.31 0.62 -0.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.49 1.51 1.45 1.45 1.00 1.57 1.64 0.96 0.95 13 1.50 1.36 1.07 1.66 0.95 0.89 9 1.51 1.56 0.93 1.75 0.90 0.97 38 1.68 1.64 0.88 1.97 0.80 0.90 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.97(F 11 - 61.96)(0.96) + 62.94 0.97(F 13 - 67.41)(0.95) + 62.94 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 38 10 0.892 0.882 0.870 0.839 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.3 68.6 68.8 71.3 72.5 69.5 69.8 69.4 72.2 67.5 70.8 68.4 68.7 69.7 68.3 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 S- 11 0.2 0.9 0.3 0.5 1.4 1.6 2.6 0.8 1.2 0.7 0.5 0.4 0.0 0.6 1.9 S- 9 2.2 2.5 2.2 2.8 2.9 2.3 3.5 3.1 1.7 2.4 2.5 1.7 1.5 3.2 3.8 S- 38 -0.8 0.1 -0.4 -0.4 0.2 -0.5 1.7 0.7 -0.9 0.3 0.4 -0.6 -1.0 0.3 1.2 S- 10 -3.0 -2.8 -3.0 -2.6 -1.5 -1.8 -2.0 -2.7 -2.6 -2.5 -3.0 -3.9 -3.5 -1.9 -1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 1.20 0.99 1.58 1.39 1.15 0.74 70.53 69.39 1.13 69.60 68.69 0.91 -0.23 9 3.03 3.18 3.30 3.09 2.96 2.42 67.31 3.22 67.04 2.56 -0.66 38 0.27 0.06 0.62 0.29 0.33-0.04 70.33 0.20 69.57 0.03 -0.17 10 -1.86-1.78-1.23-1.70-2.15-2.70 72.15-1.62 72.15-2.55 -0.93 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.36 1.47 1.22 1.43 0.85 1.44 1.45 0.99 1.16 9 1.42 1.45 0.84 1.53 0.94 1.12 38 1.56 1.61 0.76 1.65 0.87 1.15 10 1.30 1.15 1.06 1.40 1.03 0.97 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.94(F 11 - 68.69)(0.99) + 69.60 0.94(F 9 - 67.04)(0.94) + 69.60 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 10 9 38 0.805 0.801 0.761 0.749 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.3 72.6 71.0 74.1 75.8 73.8 73.4 73.0 73.5 71.0 74.3 72.6 72.9 72.7 72.6 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 11 0.5 0.8 -0.1 0.5 2.1 1.2 1.9 0.9 0.9 0.9 0.4 0.5 -0.2 1.2 1.9 S- 10 -2.8 -2.6 -3.3 -2.6 -1.8 -2.2 -2.5 -2.8 -3.2 -3.0 -2.9 -3.7 -3.6 -2.1 -1.4 S- 9 1.9 2.1 1.9 3.1 3.0 1.7 2.7 2.7 1.6 2.5 2.2 1.4 0.5 2.9 3.4 S- 38 -1.9 -0.7 -0.9 0.0 1.0 -1.0 0.6 0.4 -0.9 0.7 0.0 -0.8 -2.4 0.3 0.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 1.25 1.03 1.73 1.48 1.07 0.81 73.63 72.39 1.24 73.11 72.21 0.90 -0.34 10 -2.09-1.94-1.63-1.99-2.26-2.83 75.44-1.81 75.81-2.69 -0.88 9 2.84 3.01 3.14 2.99 2.77 2.07 70.51 3.12 70.87 2.24 -0.87 38 0.03-0.23 0.50 0.09 0.01-0.33 73.63 0.00 73.43-0.32 -0.32 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.09 1.21 0.84 1.17 0.72 1.15 1.06 1.08 1.51 10 1.07 0.93 0.90 1.08 1.07 1.18 9 1.17 1.06 0.79 1.25 0.92 1.16 38 1.33 1.30 0.65 1.39 0.83 1.28 Suggested regression eqns from two most closely related CDs ( 11 and 10): 0.90(F 11 - 72.21)(1.08) + 73.11 0.89(F 10 - 75.81)(1.07) + 73.11 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 10 38 0.873 0.856 0.854 0.840 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.0 69.6 70.0 72.6 74.0 72.3 71.4 71.7 72.0 70.9 73.4 69.8 71.6 70.4 71.7 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 S- 11 0.2 0.5 0.3 0.4 2.1 0.8 1.3 0.6 0.6 0.8 0.6 0.4 -0.3 0.7 1.5 S- 9 1.9 2.2 1.5 2.8 3.1 1.6 2.4 2.6 1.8 2.6 2.2 1.5 1.2 2.7 3.9 S- 10 -3.3 -3.0 -3.5 -2.3 -2.3 -2.3 -2.6 -2.6 -3.3 -2.9 -3.0 -3.8 -3.6 -2.8 -1.8 S- 38 -2.3 -0.8 -0.9 -0.4 1.2 -1.1 0.1 0.2 -0.4 1.1 0.6 -0.6 -1.7 0.0 1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 1.10 1.03 1.39 1.34 0.98 0.61 72.43 71.32 1.11 71.57 70.88 0.69 -0.42 9 2.84 3.07 2.98 3.05 2.64 2.27 69.36 3.07 69.30 2.26 -0.80 10 -2.24-1.93-1.97-2.18-2.33-3.03 74.33-1.91 74.43-2.86 -0.96 38 0.06-0.16 0.33 0.27-0.15-0.01 72.45-0.02 71.83-0.27 -0.25 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.34 1.34 1.15 1.14 1.00 1.22 1.11 1.10 1.10 9 1.38 1.36 0.85 1.21 1.01 1.20 10 1.24 1.12 1.03 1.08 1.13 1.10 38 1.54 1.41 0.81 1.33 0.92 1.13 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.93(F 11 - 70.88)(1.10) + 71.57 0.93(F 9 - 69.30)(1.01) + 71.57 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 38 13 0.905 0.885 0.875 0.874 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 65.7 66.5 65.3 66.0 65.2 63.6 65.1 65.9 65.5 63.8 65.5 62.8 65.5 64.3 64.4 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 S- 11 0.0 0.3 -0.3 0.2 1.6 0.5 0.9 0.6 0.3 0.7 0.5 -0.6 -0.1 0.2 0.5 S- 9 2.0 2.2 1.6 2.8 3.3 2.2 2.4 2.8 2.0 2.8 2.2 1.5 1.3 2.2 3.2 S- 38 -1.9 -0.3 -0.8 -0.1 1.2 -0.5 0.3 0.7 -0.3 1.1 1.1 -1.1 -1.0 -0.5 0.5 S- 13 -5.0 -4.5 -5.0 -4.5 -3.8 -4.6 -4.3 -5.2 -4.2 -4.1 -5.0 -5.1 -5.1 -4.4 -4.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 0.82 0.88 0.92 1.08 0.82 0.22 66.25 65.38 0.87 65.01 64.65 0.36 -0.51 9 2.89 3.23 2.84 3.14 2.83 2.19 63.15 3.10 62.70 2.31 -0.79 38 0.26 0.22 0.25 0.57 0.19-0.03 66.08 0.18 65.11-0.11 -0.28 13 -4.12-4.03-4.01-3.90-4.17-4.63 70.25-3.99 69.62-4.62 -0.62 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.52 1.43 1.41 1.27 1.11 0.99 1.04 0.95 0.86 9 1.50 1.33 1.06 1.10 0.90 0.85 38 1.65 1.37 1.03 1.31 0.75 0.73 13 1.44 1.41 1.00 1.10 0.90 0.90 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.95(F 11 - 64.65)(0.95) + 65.01 0.94(F 9 - 62.70)(0.90) + 65.01 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 11 10 0.909 0.908 0.900 0.886 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 55.9 56.5 59.5 57.5 55.7 53.4 56.0 57.5 55.9 55.7 55.8 55.2 54.4 53.5 54.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 S- 9 2.3 2.6 2.0 2.7 2.9 2.3 2.6 2.3 2.5 2.8 2.1 1.0 2.4 2.4 3.0 S- 13 -5.0 -5.0 -5.5 -5.5 -4.2 -5.4 -5.1 -5.4 -4.5 -4.5 -5.7 -5.7 -5.3 -5.5 -5.1 S- 11 0.1 0.0 -0.5 -1.1 1.2 -0.2 0.7 0.3 0.0 0.6 -0.1 -1.1 0.3 -0.5 0.3 S- 10 -3.5 -3.0 -3.6 -3.2 -2.8 -3.0 -3.7 -3.3 -3.3 -2.8 -4.3 -4.3 -3.8 -3.8 -3.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.92 3.49 2.81 3.03 2.80 2.31 57.00 53.73 3.26 55.80 53.41 2.39 -0.88 13 -4.64-4.32-4.53-4.64-4.72-5.17 61.38-4.38 60.96-5.16 -0.77 11 0.52 0.97 0.58 0.54 0.42-0.07 56.22 0.78 55.81-0.01 -0.79 10 -2.79-2.27-2.64-2.83-2.80-3.67 59.27-2.28 59.25-3.45 -1.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.67 1.66 0.98 0.90 1.08 1.53 1.63 0.94 0.87 13 1.52 0.79 1.23 1.60 0.95 0.78 11 1.62 0.81 1.20 1.72 0.89 0.74 10 1.52 0.78 1.24 1.55 0.99 0.80 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.95(F 9 - 53.41)(0.94) + 55.80 0.95(F 13 - 60.96)(0.95) + 55.80 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 11 38 0.943 0.938 0.932 0.931 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.5 50.3 49.4 47.4 46.6 44.1 42.6 49.2 47.0 46.1 44.9 47.4 44.0 44.8 45.0 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 9 3.3 2.6 3.5 2.9 3.1 2.9 3.2 2.5 2.6 3.3 2.0 1.0 2.9 2.1 2.8 S- 13 -5.2 -5.2 -5.5 -5.9 -4.2 -5.5 -6.7 -5.5 -5.4 -4.5 -5.8 -6.1 -5.6 -5.7 -4.9 S- 11 0.2 -0.1 0.1 -1.3 0.6 0.2 -0.2 0.1 -0.1 0.8 -0.7 -1.5 0.2 -1.1 0.3 S- 38 1.2 0.9 2.0 1.3 1.2 0.4 1.3 1.0 0.4 1.4 0.8 -1.3 1.4 -0.4 0.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.13 3.83 3.02 3.02 3.17 2.40 46.79 43.22 3.57 46.29 43.56 2.73 -0.84 13 -5.13-4.71-5.26-5.16-5.16-5.44 51.66-4.87 51.75-5.46 -0.58 11 0.22 0.81 0.09 0.18 0.18-0.31 46.20 0.59 46.46-0.17 -0.76 38 1.06 1.66 0.93 0.97 1.11 0.42 45.35 1.44 45.48 0.82 -0.62 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.01 2.15 1.51 1.54 0.98 2.13 2.26 0.94 0.96 13 1.84 1.31 1.15 2.05 1.03 0.90 11 2.00 1.44 1.05 2.26 0.94 0.90 38 2.17 1.48 1.02 2.20 0.96 0.95 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.97(F 9 - 43.56)(0.94) + 46.29 0.97(F 13 - 51.75)(1.03) + 46.29 Station#1867 LEXINGTON , va 4487603 lat/lon 79.43 37.78 1M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 9 11 10 0.951 0.949 0.945 0.940 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.2 39.7 41.0 38.8 39.2 40.8 38.1 42.7 40.7 41.1 37.0 41.7 35.7 37.8 38.1 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 S- 13 -6.0 -5.4 -5.5 -6.6 -5.1 -5.5 -6.8 -5.3 -5.8 -5.0 -6.2 -6.1 -6.1 -6.7 -6.7 S- 9 4.0 3.9 4.3 3.0 2.8 2.8 3.7 3.2 3.5 3.1 3.3 1.8 3.1 2.7 0.8 S- 11 -0.1 0.8 0.9 -2.0 -0.2 -0.3 0.0 -0.4 -0.2 -0.2 -0.5 -1.1 -0.8 -1.4 -1.6 S- 10 -2.9 -2.9 -3.2 -3.6 -2.8 -2.6 -3.6 -3.3 -3.9 -3.2 -4.2 -4.7 -3.5 -3.9 -5.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -5.79-5.37-5.98-5.98-5.61-6.09 39.57 45.11-5.54 39.31 45.23-5.92 -0.38 9 3.54 4.38 3.50 3.46 3.48 2.62 35.43 4.14 36.24 3.07 -1.07 11 -0.16 0.55-0.41-0.19-0.12-0.82 39.26 0.32 39.78-0.47 -0.79 10 -3.17-2.31-3.22-3.47-3.00-4.10 42.12-2.55 42.90-3.58 -1.04 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.40 2.24 2.17 1.95 1.11 1.92 1.65 1.17 1.05 9 2.64 2.20 0.99 2.10 0.92 0.93 11 2.43 2.14 1.01 1.87 1.03 1.02 10 2.36 1.90 1.14 1.95 0.99 0.86 Suggested regression eqns from two most closely related CDs ( 13 and 9): 0.98(F 13 - 45.23)(1.17) + 39.31 0.97(F 9 - 36.24)(0.92) + 39.31 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 37.14 39.44 45.49 54.39 63.94 71.45 74.96 73.34 65.38 53.65 43.97 39.06 1952 38.85 40.23 45.98 53.84 64.99 72.76 76.67 74.08 65.49 56.16 45.93 41.04 1953 39.39 42.67 47.77 56.61 65.52 73.47 75.88 74.29 68.29 58.73 48.91 40.39 1954 38.64 40.42 48.47 54.78 64.61 70.49 74.46 73.00 67.24 57.15 45.62 36.56 1955 33.88 37.48 45.85 55.85 63.74 71.56 75.70 75.24 67.47 56.05 44.16 35.93 1956 34.51 38.37 44.72 52.67 62.46 70.00 73.70 71.62 66.21 57.21 50.14 41.07 1957 38.85 38.93 48.11 56.55 66.29 71.54 74.34 73.10 66.17 57.35 47.18 40.20 1958 34.71 35.06 42.61 53.31 63.09 70.29 73.67 72.98 66.97 58.69 46.29 37.06 1959 33.42 37.94 46.46 56.13 65.83 72.31 75.93 75.71 70.12 59.00 48.25 40.21 1960 37.17 35.03 42.82 51.77 64.72 69.69 74.47 73.28 67.42 57.92 44.70 35.28 1961 31.60 37.71 44.85 52.20 60.60 69.51 75.02 75.48 69.37 60.32 47.54 39.31 1962 34.27 36.86 44.06 55.37 65.27 70.99 73.14 70.79 66.29 56.08 45.20 35.10 1963 30.46 35.49 44.49 55.97 64.43 71.26 74.22 72.21 67.27 58.94 46.78 37.89 1964 33.45 38.60 44.38 54.82 64.87 73.15 75.51 73.13 65.27 57.12 47.37 39.71 1965 35.75 36.63 43.99 54.69 64.73 72.40 74.51 74.46 67.46 57.85 47.02 38.25 1966 34.19 37.07 44.08 53.27 61.88 71.35 76.57 74.65 66.88 56.03 46.02 40.73 1967 36.43 39.13 44.98 53.44 63.05 68.87 73.84 71.21 64.90 55.39 46.76 37.70 1968 33.88 36.80 46.32 55.15 63.08 69.28 74.93 74.26 68.55 58.57 46.93 38.04 1969 34.02 36.11 44.47 54.55 65.45 72.05 74.95 72.89 65.84 55.89 44.74 34.94 1970 32.10 34.30 43.67 53.84 64.49 71.48 74.43 74.29 68.71 59.28 48.12 37.89 1971 34.70 36.12 44.38 52.25 63.29 70.57 74.64 72.72 68.51 59.28 50.66 42.36 1972 38.18 38.48 43.36 53.38 61.44 69.26 72.80 72.79 65.44 56.13 46.76 40.94 1973 37.68 41.33 47.15 55.29 62.88 70.10 75.41 74.57 68.89 59.47 48.44 42.47 1974 38.68 41.91 47.32 55.98 63.42 69.16 73.10 72.38 65.91 57.08 47.56 41.76 1975 38.11 39.54 43.70 53.46 63.08 71.37 74.82 73.16 67.73 58.78 48.58 38.77 1976 36.04 40.15 49.28 55.55 63.96 69.29 73.15 71.10 64.60 54.41 42.82 32.75 1977 31.19 37.40 48.79 58.37 64.97 71.81 74.76 74.99 67.53 58.23 45.63 36.28 1978 29.79 32.64 41.75 53.05 63.50 70.22 75.26 74.68 68.34 58.75 48.29 39.87 1979 32.62 35.74 43.33 55.49 62.54 69.49 73.20 72.29 66.17 58.28 49.47 41.86 1980 36.11 36.83 44.16 55.37 64.58 72.01 75.49 75.74 68.50 57.45 46.24 37.39 1981 35.50 37.89 47.59 55.30 65.16 70.99 74.43 72.39 65.14 57.03 46.05 36.63 1982 33.18 36.92 45.80 55.62 63.81 71.38 72.61 71.54 65.45 57.94 49.86 42.18 1983 38.36 39.77 45.70 53.73 62.36 70.88 76.01 75.06 68.16 58.36 45.92 36.59 1984 34.31 36.46 44.25 51.58 63.35 70.41 74.40 71.85 68.14 58.08 51.26 40.13 1985 37.51 38.20 48.40 57.91 65.52 70.64 73.23 72.75 67.51 60.57 49.21 40.40 1986 33.86 38.05 45.65 56.55 65.85 73.70 75.81 74.33 67.70 58.45 47.68 38.63 1987 35.92 39.13 46.02 55.70 64.85 73.68 77.04 75.32 66.19 57.39 47.81 40.14 1988 35.90 37.60 45.79 55.20 64.58 73.24 77.46 75.26 65.95 56.11 46.01 41.07 1989 37.16 39.50 44.89 53.46 63.54 70.77 74.90 73.18 67.36 57.41 43.24 37.73 1990 37.03 44.78 49.29 55.48 63.19 70.10 73.99 72.36 66.89 59.69 51.28 42.83 1991 39.50 41.67 49.27 58.73 67.18 74.34 76.70 75.08 68.29 57.82 48.84 41.19 1992 39.20 39.98 46.17 52.91 61.46 68.52 72.15 71.15 64.21 56.09 46.37 40.69 1993 36.66 38.00 43.31 53.53 63.95 72.42 76.32 75.16 67.71 57.93 47.09 37.55 1994 33.61 35.69 46.23 53.71 65.92 71.99 76.42 72.77 65.01 58.41 50.12 44.55 1995 38.21 39.69 44.85 54.31 62.52 70.23 75.22 73.89 68.15 56.54 45.37 36.06 1996 34.36 36.76 44.33 52.45 62.30 68.47 72.29 71.32 65.68 55.07 45.90 38.60 1997 39.10 41.44 47.37 53.53 61.07 69.46 72.83 71.22 62.71 52.50 43.14 36.69 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 9 10 0.973 0.954 0.945 0.940 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.4 34.3 37.5 33.9 35.9 35.9 37.2 37.0 39.5 39.2 36.7 33.6 38.2 34.4 39.1 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 S- 7 2.2 1.6 2.7 1.5 2.8 3.1 2.2 2.5 2.1 2.8 2.3 3.2 2.4 3.0 2.4 S- 8 6.7 7.7 9.1 7.4 7.8 8.3 7.5 8.2 7.9 8.1 7.8 9.4 8.5 8.4 7.8 S- 9 3.2 3.0 4.6 2.4 3.5 3.7 2.6 3.3 3.2 3.5 2.8 3.3 4.0 3.7 3.7 S- 10 -2.3 -4.2 -2.8 -5.1 -2.4 -2.2 -3.5 -3.9 -4.0 -3.5 -3.7 -3.9 -3.3 -2.9 -2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.25 1.90 2.25 2.17 2.44 2.60 35.47 33.45 2.02 36.71 34.28 2.44 0.42 8 7.98 7.46 7.85 8.29 8.11 8.25 27.83 7.65 28.68 8.03 0.38 9 3.25 2.88 3.23 3.25 3.49 3.45 32.62 2.85 33.35 3.36 0.51 10 -3.64-3.72-3.83-3.99-3.17-3.42 39.40-3.92 40.07-3.36 0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.52 2.52 2.68 2.68 1.00 1.93 2.00 0.96 0.97 8 2.85 2.97 0.90 2.18 0.89 0.98 9 2.89 2.99 0.90 1.85 1.04 1.16 10 2.48 2.49 1.08 1.82 1.06 0.99 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.99(F 7 - 34.28)(0.96) + 36.71 0.98(F 8 - 28.68)(0.89) + 36.71 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 9 6 0.966 0.951 0.929 0.925 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.8 36.5 38.2 38.0 39.1 37.6 39.5 44.8 41.7 40.0 38.0 35.7 39.7 36.8 41.4 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 6 34.8 29.6 29.6 33.2 34.1 30.6 34.4 38.9 35.0 34.5 31.7 28.4 32.4 29.1 34.0 S- 7 2.7 2.2 2.6 1.8 3.5 2.9 2.1 2.7 2.7 2.9 3.0 3.5 2.2 3.1 3.0 S- 8 7.4 8.4 9.1 7.4 8.3 8.6 7.2 8.1 8.3 8.3 8.2 9.7 8.1 8.6 8.8 S- 9 3.7 2.6 4.8 2.2 3.8 3.6 1.3 2.8 3.7 3.0 2.8 2.5 3.7 3.9 3.5 S- 6 5.0 6.9 8.6 4.8 5.0 7.0 5.1 5.9 6.7 5.5 6.3 7.3 7.3 7.6 7.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.62 2.09 2.63 2.77 2.78 2.92 38.06 35.81 2.25 39.11 36.37 2.74 0.49 8 8.33 7.66 8.25 8.81 8.39 8.60 30.17 7.89 30.80 8.31 0.42 9 3.25 2.92 3.14 3.51 3.37 3.30 35.21 2.85 35.92 3.19 0.35 6 6.69 6.02 6.55 7.63 6.43 6.87 31.89 6.17 32.68 6.43 0.26 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.31 2.26 2.05 1.94 1.06 2.24 2.33 0.96 0.91 8 2.54 2.13 0.96 2.53 0.89 0.92 9 2.79 2.46 0.84 2.36 0.95 1.13 6 3.04 2.41 0.85 2.77 0.81 0.95 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.98(F 7 - 36.37)(0.96) + 39.11 0.98(F 8 - 30.80)(0.89) + 39.11 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 10 9 0.959 0.917 0.888 0.885 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.7 44.3 48.4 45.7 46.0 45.8 44.9 49.3 49.3 46.2 43.3 46.2 44.8 44.3 47.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 S- 7 2.9 2.2 3.2 2.5 3.4 3.2 2.6 2.8 3.3 3.5 3.2 3.2 2.3 3.1 2.9 S- 8 7.5 7.8 9.1 7.0 7.2 8.7 8.2 7.9 8.2 8.2 8.0 9.4 8.2 8.5 8.3 S- 10 -1.6 -3.4 -2.0 -3.9 -0.3 -1.7 -3.1 -3.0 -2.0 -2.9 -2.9 -4.0 -3.7 -2.0 -2.0 S- 9 3.8 2.8 4.8 1.5 4.1 3.9 2.7 3.1 4.1 3.0 3.4 2.7 2.7 4.5 4.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.89 2.42 3.02 2.99 3.03 3.07 45.34 42.80 2.54 46.10 43.14 2.96 0.43 8 8.16 7.59 8.05 8.62 8.22 8.41 37.55 7.79 37.97 8.13 0.34 10 -2.65-3.04-2.65-2.60-2.19-2.79 48.40-3.06 48.67-2.57 0.49 9 3.41 3.30 3.14 3.57 3.62 3.47 42.19 3.15 42.70 3.40 0.25 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.89 1.89 1.73 1.67 1.04 1.73 1.66 1.04 1.01 8 2.04 1.85 0.94 1.74 1.00 1.07 10 1.97 1.95 0.89 1.80 0.96 1.09 9 2.04 2.10 0.82 1.69 1.03 1.25 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.98(F 7 - 43.14)(1.04) + 46.10 0.96(F 8 - 37.97)(1.00) + 46.10 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 9 6 0.949 0.922 0.906 0.904 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.7 51.6 57.9 56.5 55.7 55.2 53.5 55.5 58.7 52.9 53.5 53.7 54.3 52.5 53.5 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3 S- 7 2.4 2.4 3.1 2.8 3.0 3.4 2.6 2.6 3.2 3.0 2.6 1.8 1.9 2.4 2.8 S- 8 7.6 8.3 8.3 7.3 6.5 7.9 7.7 7.4 7.3 6.9 6.9 7.7 7.2 7.3 8.2 S- 9 4.0 3.3 4.2 3.9 3.7 4.2 3.5 3.3 3.6 2.9 3.7 3.2 2.7 3.3 4.7 S- 6 5.3 6.4 5.1 4.6 3.8 5.8 5.5 5.2 4.2 4.1 5.2 5.3 5.1 5.8 6.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.76 2.45 3.02 2.76 2.95 2.53 54.60 52.01 2.59 54.59 51.92 2.66 0.07 8 7.53 7.23 7.55 7.71 7.78 7.35 47.25 7.35 47.09 7.49 0.14 9 3.55 3.45 3.25 3.65 3.91 3.45 51.18 3.41 50.97 3.62 0.20 6 5.27 5.21 5.13 5.45 5.36 5.14 49.44 5.16 49.40 5.19 0.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.63 1.59 1.51 1.43 1.05 1.93 1.74 1.11 1.06 8 1.74 1.57 0.96 2.03 0.95 0.99 9 1.68 1.70 0.88 1.83 1.05 1.19 6 1.97 1.60 0.94 2.40 0.80 0.86 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.97(F 7 - 51.92)(1.11) + 54.59 0.96(F 8 - 47.09)(0.95) + 54.59 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.923 0.894 0.891 0.861 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.4 63.3 65.5 65.8 64.8 64.6 63.5 63.2 67.2 61.5 64.0 65.9 62.5 62.3 61.1 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7 S- 7 2.2 2.4 2.7 2.8 2.5 3.6 2.4 1.9 2.5 2.5 2.2 2.9 1.5 1.0 1.9 S- 10 -0.8 -1.2 -1.2 -0.9 -0.5 0.8 -1.1 -1.8 -0.7 -1.3 -1.4 -0.4 -2.5 -3.0 -0.7 S- 9 4.4 3.8 4.3 4.1 3.8 5.3 5.1 3.8 3.4 3.5 4.0 5.3 2.8 2.0 4.9 S- 8 7.3 7.6 7.9 7.3 6.0 8.0 7.9 6.5 6.1 6.1 6.5 8.3 6.2 4.9 6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.44 2.29 2.75 2.36 2.62 2.08 64.34 61.88 2.46 63.84 61.50 2.34 -0.12 10 -1.12-1.58-0.76-1.04-0.89-1.42 65.60-1.26 64.96-1.12 0.14 9 3.90 3.65 3.78 3.99 4.31 3.70 60.56 3.78 59.81 4.03 0.26 8 6.88 6.63 6.99 6.93 7.37 6.35 57.52 6.82 56.97 6.87 0.05 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.44 1.33 1.39 1.27 1.09 1.72 1.46 1.17 1.08 10 1.42 1.39 1.00 1.58 1.09 1.09 9 1.51 1.56 0.89 1.75 0.98 1.10 8 1.42 1.45 0.96 1.62 1.06 1.11 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.96(F 7 - 61.50)(1.17) + 63.84 0.95(F 10 - 64.96)(1.09) + 63.84 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 24 0.912 0.859 0.849 0.842 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.9 70.4 70.6 73.7 73.7 73.2 70.8 70.1 74.3 68.5 72.4 72.0 70.2 68.5 69.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7 cd 24 69.4 68.3 68.6 70.9 72.5 71.3 67.8 67.5 72.9 66.8 69.5 68.6 69.2 67.8 66.8 S- 7 1.9 1.9 1.6 2.6 2.6 3.2 1.7 1.2 2.1 1.7 1.9 2.2 0.7 0.4 1.9 S- 9 4.7 4.3 4.0 5.2 4.1 6.1 4.4 3.7 3.9 3.4 4.2 5.3 3.1 1.9 4.9 S- 6 4.1 4.7 4.5 5.3 3.9 4.9 4.6 4.6 3.0 3.6 4.9 5.4 2.8 2.3 4.7 S- 24 1.5 2.1 2.0 2.8 1.2 2.0 3.0 2.6 1.4 1.7 3.0 3.4 1.1 0.7 2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.90 1.80 2.17 1.82 2.06 1.56 71.39 69.39 2.00 71.26 69.42 1.84 -0.16 9 4.12 3.77 4.29 4.14 4.47 3.83 67.31 4.08 67.04 4.22 0.13 6 4.02 3.76 4.16 3.80 4.48 3.83 67.47 3.92 67.03 4.23 0.31 24 1.85 1.73 2.01 1.38 2.20 1.99 69.60 1.79 69.19 2.06 0.28 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.45 1.20 1.20 1.07 1.12 1.82 1.38 1.31 1.17 9 1.42 1.45 0.83 1.53 1.19 1.43 6 1.51 1.55 0.78 1.77 1.03 1.32 24 1.58 1.62 0.74 1.87 0.97 1.31 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.96(F 7 - 69.42)(1.31) + 71.26 0.93(F 9 - 67.04)(1.19) + 71.26 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 10 0.894 0.862 0.814 0.777 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.0 74.4 73.2 75.8 77.0 77.5 74.9 74.0 76.7 72.2 76.3 76.4 75.2 72.3 72.8 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 S- 7 1.7 1.3 1.2 2.4 2.4 2.5 1.7 0.8 2.0 1.5 2.0 2.4 0.8 0.0 0.7 S- 9 4.6 3.9 4.1 4.8 4.3 5.4 4.1 3.7 4.7 3.6 4.2 5.2 2.8 2.5 3.7 S- 6 3.2 3.6 4.3 5.0 4.6 4.5 4.2 4.1 3.8 4.2 4.4 5.4 1.8 1.8 3.3 S- 10 -0.1 -0.7 -1.2 -0.8 -0.5 1.4 -1.0 -1.8 -0.1 -1.9 -0.9 0.2 -1.3 -2.5 -1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.64 1.54 1.92 1.58 1.71 1.34 74.81 73.07 1.74 74.98 73.42 1.57 -0.17 9 4.26 3.96 4.77 4.33 4.30 3.82 70.51 4.30 70.87 4.11 -0.19 6 3.92 3.49 4.35 3.96 4.14 3.54 70.99 3.82 71.09 3.89 0.07 10 -0.67-0.99-0.01-0.65-0.74-1.08 75.44-0.63 75.81-0.82 -0.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.30 1.05 0.95 0.92 1.03 1.70 1.18 1.43 1.39 9 1.17 1.06 0.89 1.25 1.36 1.53 6 1.34 1.30 0.73 1.57 1.08 1.49 10 1.07 0.93 1.01 1.08 1.58 1.55 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.95(F 7 - 73.42)(1.43) + 74.98 0.93(F 9 - 70.87)(1.36) + 74.98 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 8 0.913 0.893 0.880 0.855 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.1 71.8 72.8 74.3 75.3 75.3 73.2 72.4 75.1 71.2 75.2 72.8 73.9 71.3 71.2 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6 cd 8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9 S- 7 1.7 1.4 1.1 2.6 2.5 2.3 1.8 1.1 2.4 1.1 2.1 1.6 0.8 0.6 0.2 S- 9 4.9 4.4 4.3 4.5 4.4 4.5 4.1 3.3 4.9 2.8 4.0 4.4 3.5 3.7 3.4 S- 6 3.4 4.2 3.9 4.3 4.8 4.1 4.2 3.8 4.7 3.8 5.1 4.5 3.3 3.0 3.6 S- 8 7.2 6.7 6.2 7.8 7.8 6.8 6.4 6.2 7.0 5.9 7.2 6.5 5.2 4.6 5.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.62 1.44 1.90 1.62 1.74 1.27 73.51 71.85 1.66 73.38 71.81 1.57 -0.09 9 4.21 3.85 4.75 4.23 4.28 3.82 69.36 4.15 69.30 4.08 -0.08 6 4.08 3.53 4.50 4.32 4.05 4.00 69.66 3.85 69.33 4.05 0.20 8 6.53 6.18 6.79 6.75 6.83 5.95 67.05 6.47 66.93 6.45 -0.02 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.42 1.19 1.35 1.31 1.02 1.54 1.04 1.47 1.44 9 1.38 1.36 0.99 1.21 1.27 1.28 6 1.46 1.52 0.89 1.34 1.15 1.29 8 1.38 1.68 0.80 1.08 1.43 1.78 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.96(F 7 - 71.81)(1.47) + 73.38 0.94(F 9 - 69.30)(1.27) + 73.38 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 10 0.842 0.830 0.799 0.799 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.2 68.1 67.5 67.7 66.2 65.9 67.4 66.9 68.3 64.2 67.7 65.0 68.2 65.7 62.7 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 S- 7 1.8 1.9 1.6 2.6 2.5 2.4 2.0 1.3 2.6 1.7 2.8 1.7 1.3 1.0 -1.6 S- 9 4.5 3.8 3.8 4.4 4.3 4.6 4.7 3.7 4.8 3.2 4.4 3.7 4.0 3.6 1.5 S- 6 3.6 4.5 4.0 4.1 5.0 4.7 5.3 4.4 4.5 4.2 5.8 3.5 4.0 3.2 1.6 S- 10 -0.8 -1.1 -1.3 -0.9 -1.1 -0.2 -0.8 -1.7 -0.1 -2.0 -0.9 -1.3 -1.0 -1.6 -4.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.79 1.39 2.10 2.00 1.97 1.36 67.09 65.38 1.71 66.64 64.95 1.70 -0.02 9 4.12 3.63 4.63 4.37 4.22 3.62 63.15 3.94 62.70 3.95 0.00 6 4.25 3.54 4.55 4.83 4.37 3.82 63.27 3.83 62.48 4.17 0.34 10 -1.11-1.55-0.49-1.12-0.91-1.61 68.22-1.13 67.92-1.27 -0.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.50 1.41 1.35 1.37 0.98 1.61 1.22 1.32 1.34 9 1.50 1.33 1.01 1.10 1.47 1.45 6 1.60 1.42 0.95 1.29 1.25 1.31 10 1.42 1.31 1.03 1.07 1.51 1.47 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.92(F 7 - 64.95)(1.32) + 66.64 0.91(F 9 - 62.70)(1.47) + 66.64 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 6 8 0.835 0.801 0.798 0.786 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.4 58.1 60.6 58.5 57.4 56.1 57.4 59.7 57.8 56.1 57.9 58.4 56.5 55.1 52.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 S- 9 4.7 4.1 3.0 3.6 4.7 5.0 4.0 4.6 4.4 3.1 4.2 4.2 4.5 4.0 1.0 S- 7 1.9 2.0 2.0 2.7 2.7 2.7 1.5 2.5 2.2 2.0 2.8 2.3 1.3 1.1 -2.1 S- 6 4.2 5.0 4.7 4.5 4.9 5.4 5.3 5.4 5.0 4.3 6.3 4.4 5.6 4.3 1.2 S- 8 7.2 7.2 7.3 7.9 7.7 7.5 6.9 7.2 7.2 6.7 8.0 7.3 6.6 5.6 3.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.01 3.57 4.17 4.30 4.29 3.64 57.48 53.73 3.75 57.36 53.41 3.95 0.20 7 1.82 1.23 1.93 2.16 2.27 1.36 55.94 1.54 55.53 1.83 0.29 6 4.62 3.96 4.53 5.22 4.89 4.45 53.40 4.08 52.66 4.70 0.62 8 6.77 6.08 6.63 7.29 7.37 6.33 51.17 6.31 50.48 6.88 0.57 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.64 1.66 1.56 0.90 1.73 1.88 1.63 1.15 0.66 7 1.45 1.11 1.41 1.28 1.47 1.04 6 1.73 1.18 1.32 1.48 1.26 0.96 8 1.60 1.18 1.32 1.16 1.61 1.22 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.91(F 9 - 53.41)(1.15) + 57.36 0.89(F 7 - 55.53)(1.47) + 57.36 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 10 38 0.900 0.882 0.880 0.877 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.9 51.3 49.2 47.7 47.8 46.0 43.2 51.3 48.8 46.4 47.1 50.1 45.4 45.9 43.1 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 9 3.7 3.6 3.4 3.2 4.3 4.8 3.9 4.5 4.4 3.5 4.2 3.8 4.3 3.3 0.9 S- 7 1.2 2.3 2.4 1.8 2.8 2.5 1.7 2.3 2.4 2.0 2.4 2.3 1.9 1.2 -2.0 S- 10 -2.8 -2.0 -3.3 -3.4 -1.2 -1.1 -3.3 -1.8 -1.9 -2.7 -2.3 -1.9 -2.2 -2.8 -5.4 S- 38 1.7 1.8 1.8 1.6 2.4 2.3 1.9 3.1 2.2 1.6 2.9 1.4 2.8 0.8 -1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.67 3.27 3.73 3.87 3.96 3.48 46.60 43.22 3.39 47.28 43.56 3.72 0.33 7 1.76 1.17 1.93 2.00 2.13 1.46 45.16 1.44 45.46 1.82 0.38 10 -2.49-2.94-2.31-2.37-2.15-2.74 49.29-2.69 49.82-2.54 0.15 38 1.60 1.09 1.65 1.81 1.90 1.50 45.35 1.25 45.48 1.81 0.55 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.05 2.15 1.68 1.54 1.09 2.45 2.26 1.08 0.99 7 1.92 1.48 1.14 1.99 1.23 1.08 10 1.96 1.43 1.18 2.11 1.16 0.98 38 2.17 1.48 1.14 2.20 1.11 0.98 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.95(F 9 - 43.56)(1.08) + 47.28 0.94(F 7 - 45.46)(1.23) + 47.28 Station#1868 LINCOLN , va 4490904 lat/lon 77.72 39.12 38M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 7 38 0.933 0.926 0.921 0.907 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.6 40.1 40.4 38.6 40.1 41.1 37.7 42.8 41.2 40.7 37.5 44.5 36.1 38.6 36.7 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 S- 9 3.4 4.3 3.7 2.8 3.7 3.0 3.4 3.3 4.0 2.7 3.9 4.7 3.5 3.4 -0.6 S- 10 -3.5 -2.4 -3.8 -3.8 -1.9 -2.4 -4.0 -3.2 -3.4 -3.6 -3.6 -1.8 -3.1 -3.2 -6.8 S- 7 1.5 2.4 2.1 1.7 3.1 2.2 1.9 2.5 2.1 1.6 2.6 2.7 2.2 1.6 -3.3 S- 38 2.2 3.0 2.4 1.0 1.5 0.4 1.3 1.8 2.1 1.2 2.7 3.0 1.8 1.6 -2.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.33 3.04 3.29 3.65 3.50 3.08 38.47 35.43 3.04 39.52 36.24 3.28 0.24 10 -3.38-3.65-3.43-3.29-2.98-3.65 42.12-3.65 42.90-3.37 0.28 7 1.81 1.48 1.87 2.04 2.15 1.36 36.91 1.56 37.72 1.80 0.24 38 1.45 0.89 1.41 2.00 1.56 1.38 37.37 1.10 37.97 1.55 0.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.45 2.64 1.99 2.20 0.91 2.33 2.10 1.11 1.22 10 2.36 1.90 1.05 1.95 1.20 1.14 7 2.43 1.96 1.02 2.15 1.09 1.07 38 2.70 2.22 0.90 2.24 1.04 1.16 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 36.24)(1.11) + 39.52 0.96(F 10 - 42.90)(1.20) + 39.52 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 39.10 41.88 47.39 55.44 64.24 71.20 74.78 73.64 68.15 57.70 48.21 41.79 1952 40.93 42.58 47.75 55.52 65.99 73.18 76.76 73.72 65.71 56.62 46.79 42.22 1953 40.48 43.67 48.60 57.93 66.81 74.16 76.11 74.69 68.45 58.54 48.90 41.46 1954 40.21 42.22 50.24 56.24 65.11 70.17 74.85 74.74 69.62 58.98 46.91 37.97 1955 36.39 40.94 49.38 58.29 64.67 71.37 74.57 74.44 67.33 56.95 45.45 37.33 1956 36.26 40.37 47.27 55.14 64.12 71.12 74.15 72.01 66.19 56.99 50.88 42.85 1957 41.34 40.87 49.46 57.34 66.60 72.27 74.72 73.40 65.08 56.61 46.85 40.35 1958 35.05 35.22 43.11 53.80 63.68 70.87 73.98 72.81 65.38 57.07 45.23 38.04 1959 35.03 39.90 48.25 57.51 66.64 72.28 75.60 74.55 69.13 58.77 48.99 41.52 1960 38.43 36.02 43.45 51.85 64.75 69.85 74.73 73.65 67.40 57.68 45.16 35.88 1961 32.99 39.08 46.63 53.55 61.26 69.46 74.34 74.26 67.93 59.10 47.11 39.08 1962 35.14 37.47 44.80 55.12 64.81 70.72 72.47 70.36 65.62 55.97 45.06 36.47 1963 32.43 38.81 46.90 57.31 64.33 70.28 73.67 71.59 66.13 57.95 46.15 38.69 1964 34.16 40.02 46.01 56.22 65.02 72.07 74.29 72.21 64.52 56.62 47.96 41.97 1965 38.48 39.11 45.76 55.59 64.71 71.40 73.47 73.34 66.27 57.23 47.78 39.94 1966 35.94 38.03 45.35 54.65 62.86 70.95 74.62 72.52 65.13 56.00 45.97 41.15 1967 36.90 40.57 46.61 54.63 62.91 68.19 72.93 70.46 64.02 54.01 46.00 38.28 1968 34.79 38.39 46.44 55.81 63.39 70.24 75.30 73.48 67.52 58.43 48.01 39.22 1969 35.21 37.19 45.74 55.12 65.62 71.62 73.98 71.58 64.72 55.44 44.67 36.05 1970 33.55 36.40 44.97 54.74 65.22 72.11 74.98 74.91 69.58 60.65 49.27 40.15 1971 36.99 38.71 46.07 53.82 63.70 70.32 73.90 72.85 68.86 60.15 52.12 44.22 1972 40.70 40.73 45.90 54.42 61.72 68.33 71.93 72.08 65.06 55.73 47.44 41.83 1973 39.40 41.85 47.89 55.80 63.56 70.58 75.42 74.38 68.70 60.39 49.83 44.81 1974 40.87 44.65 49.43 57.74 63.74 68.92 72.00 71.58 65.62 57.15 48.28 42.50 1975 39.99 41.37 45.75 54.19 63.44 70.62 73.84 71.83 67.37 59.45 50.12 41.00 1976 39.49 43.98 52.31 57.36 64.48 69.92 73.19 71.49 64.26 53.95 43.44 33.95 1977 32.66 38.48 50.07 59.24 65.20 71.81 75.33 75.41 67.58 58.31 46.99 38.51 1978 32.10 34.48 43.08 53.90 63.43 69.46 73.93 73.24 67.25 58.33 48.76 41.21 1979 34.31 37.03 44.63 56.31 62.93 68.94 72.56 72.01 66.16 58.41 49.68 42.35 1980 36.66 37.93 45.16 55.40 64.22 71.23 75.60 76.02 68.94 58.04 46.44 38.04 1981 36.71 38.86 48.46 55.27 65.65 70.82 74.09 71.43 64.52 56.50 45.84 37.50 1982 34.48 38.50 46.37 55.54 63.45 70.84 72.39 71.32 65.30 58.11 50.53 43.11 1983 39.12 40.66 46.44 54.61 62.34 70.37 75.25 73.99 67.38 57.58 46.14 37.01 1984 35.12 37.92 45.65 52.72 63.41 70.50 74.41 71.51 67.95 57.74 51.40 40.54 1985 38.53 39.22 48.59 57.72 65.49 70.90 73.16 71.95 66.56 60.27 49.50 41.39 1986 35.71 39.89 47.01 56.34 65.14 72.19 74.20 72.46 66.23 57.56 47.12 38.19 1987 34.78 37.58 44.68 54.61 63.98 72.19 75.78 74.51 65.33 56.27 46.50 39.41 1988 36.01 38.13 46.45 54.88 63.01 70.65 75.10 73.59 64.68 54.44 44.87 41.05 1989 38.66 41.69 46.44 54.02 63.40 70.85 74.88 73.03 67.12 58.24 44.10 39.20 1990 38.72 47.04 51.13 56.94 64.34 71.36 74.69 73.03 67.24 59.30 51.74 44.42 1991 42.02 43.33 50.05 58.95 66.87 73.42 75.13 73.76 66.86 57.54 48.82 42.16 1992 39.69 40.69 46.54 53.40 61.35 68.81 72.35 71.86 64.08 56.07 46.34 40.84 1993 36.96 38.15 43.62 53.44 63.39 71.45 74.92 74.18 66.42 56.91 45.53 36.72 1994 33.28 36.96 47.75 55.63 65.26 70.55 74.66 71.85 64.46 56.87 48.82 42.81 1995 38.19 40.33 46.63 55.66 63.65 71.03 75.46 73.73 67.29 55.51 44.56 35.69 1996 33.66 36.07 44.05 53.12 64.11 70.32 73.88 72.06 65.71 54.77 45.12 38.02 1997 38.31 41.10 46.72 52.79 60.05 67.88 72.09 71.10 64.30 54.44 44.65 37.96 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.956 0.946 0.935 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.1 35.1 38.5 35.7 34.8 36.0 38.7 38.7 42.0 39.7 37.0 33.3 38.2 33.7 38.3 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 -1.6 -3.4 -1.8 -3.2 -3.6 -2.1 -2.0 -2.2 -1.4 -3.0 -3.4 -4.3 -3.3 -3.6 -3.5 S- 7 2.9 2.4 3.7 3.4 1.6 3.2 3.7 4.2 4.6 3.3 2.6 2.9 2.4 2.3 1.6 S- 9 3.9 3.8 5.7 4.2 2.4 3.8 4.1 5.0 5.7 3.9 3.1 3.0 4.0 3.0 2.9 S- 13 -4.2 -6.6 -4.9 -6.9 -6.7 -4.9 -5.6 -5.9 -3.9 -6.3 -6.0 -7.8 -5.5 -7.2 -6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.34-2.05-2.48-1.98-2.26-3.21 37.09 39.40-2.30 37.25 40.07-2.82 -0.52 7 3.55 3.57 3.60 4.18 3.35 2.81 33.45 3.64 34.28 2.97 -0.67 9 4.54 4.55 4.57 5.26 4.40 3.66 32.62 4.47 33.35 3.90 -0.57 13 -5.66-5.60-5.90-5.24-5.57-6.14 42.99-5.89 43.16-5.91 -0.02 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.66 2.48 2.86 2.49 1.15 2.36 1.82 1.29 1.13 7 2.52 2.68 1.06 2.00 1.18 1.11 9 2.89 2.99 0.96 1.85 1.27 1.33 13 2.54 2.78 1.03 1.66 1.42 1.38 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 40.07)(1.29) + 37.25 0.97(F 7 - 34.28)(1.18) + 37.25 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.956 0.932 0.925 0.910 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.7 37.9 39.2 39.9 37.6 38.1 41.7 47.0 43.3 40.7 38.2 37.0 40.3 36.1 41.1 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 S- 10 -1.1 -2.7 -1.7 -2.6 -2.7 -1.7 -1.8 -1.2 -1.6 -3.0 -3.4 -3.8 -2.6 -3.3 -3.1 S- 7 3.6 3.7 3.6 3.6 2.0 3.5 4.3 5.0 4.4 3.6 3.2 4.7 2.9 2.4 2.7 S- 9 4.6 4.1 5.8 4.0 2.2 4.2 3.5 5.0 5.3 3.7 2.9 3.8 4.3 3.3 3.2 S- 13 -3.7 -7.2 -5.4 -6.8 -6.3 -5.0 -6.0 -4.3 -4.7 -6.5 -6.6 -8.4 -5.7 -7.3 -7.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.94-1.95-1.86-1.49-1.74-2.98 39.88 41.89-2.01 39.92 42.35-2.43 -0.42 7 4.07 3.90 4.27 4.67 3.90 3.41 35.81 4.07 36.37 3.54 -0.52 9 4.69 4.73 4.78 5.42 4.49 3.78 35.21 4.67 35.92 4.00 -0.67 13 -5.74-5.84-5.61-5.32-5.53-6.71 45.76-5.89 46.03-6.11 -0.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.54 2.45 2.28 2.14 1.07 2.68 2.25 1.19 1.12 7 2.26 1.94 1.18 2.33 1.15 0.98 9 2.79 2.46 0.93 2.36 1.14 1.22 13 2.57 2.47 0.93 2.21 1.22 1.31 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 42.35)(1.19) + 39.92 0.97(F 7 - 36.37)(1.15) + 39.92 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.953 0.923 0.921 0.898 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.4 45.7 48.6 47.0 44.7 46.5 46.4 51.1 50.0 46.5 43.6 47.8 46.6 44.0 46.7 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 -0.9 -2.0 -1.8 -2.5 -1.7 -1.1 -1.6 -1.2 -1.2 -2.6 -2.5 -2.5 -2.0 -2.3 -2.6 S- 9 4.5 4.2 4.9 2.9 2.8 4.5 4.3 4.9 4.8 3.4 3.7 4.2 4.4 4.2 3.4 S- 7 3.6 3.6 3.4 3.9 2.1 3.9 4.2 4.6 4.1 3.9 3.5 4.7 4.0 2.8 2.2 S- 13 -3.7 -5.7 -5.1 -7.2 -5.3 -4.6 -5.8 -4.3 -4.8 -6.0 -5.4 -6.2 -5.9 -6.0 -7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.38-1.38-1.26-0.89-1.41-2.25 47.00 48.40-1.40 46.78 48.67-1.89 -0.49 9 4.68 4.96 4.53 5.28 4.40 4.02 42.19 4.81 42.70 4.08 -0.73 7 4.16 4.08 4.41 4.70 3.81 3.62 42.80 4.20 43.14 3.64 -0.56 13 -5.16-4.99-5.28-4.69-5.15-5.89 52.13-5.13 52.32-5.53 -0.41 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.08 1.97 2.04 1.95 1.04 1.96 1.80 1.09 1.04 9 2.04 2.10 0.97 1.69 1.16 1.19 7 1.89 1.67 1.22 1.66 1.18 0.96 13 1.96 2.04 1.00 1.92 1.02 1.02 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(1.09) + 46.78 0.96(F 9 - 42.70)(1.16) + 46.78 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.956 0.924 0.904 0.901 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 54.6 52.7 57.7 56.3 54.6 54.9 54.0 56.9 59.0 53.4 53.4 55.6 55.7 53.1 52.8 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 -0.8 -1.6 -1.5 -1.3 -1.3 -0.8 -1.2 -1.0 -1.0 -1.7 -2.2 -1.6 -1.6 -1.8 -2.2 S- 9 4.9 4.4 4.0 3.7 2.6 3.9 4.0 4.8 3.8 3.4 3.6 5.1 4.0 3.9 4.0 S- 7 3.3 3.5 2.9 2.6 1.9 3.0 3.2 4.0 3.4 3.4 2.5 3.7 3.2 3.1 2.0 S- 13 -3.5 -5.3 -4.1 -4.8 -4.8 -4.1 -4.6 -4.0 -3.8 -4.5 -4.5 -4.8 -5.8 -5.4 -6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.02-1.01-0.80-0.69-1.10-1.74 55.79 56.76-0.97 54.99 56.44-1.45 -0.47 9 4.37 4.77 4.20 4.65 4.13 4.00 51.18 4.61 50.97 4.02 -0.59 7 3.58 3.77 3.97 3.76 3.16 3.07 52.01 3.78 51.92 3.06 -0.72 13 -4.41-4.36-4.50-3.99-4.39-5.02 60.19-4.40 59.67-4.68 -0.28 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.68 1.52 1.72 1.54 1.12 1.81 1.62 1.12 1.00 9 1.68 1.70 1.01 1.83 0.99 0.98 7 1.59 1.43 1.20 1.74 1.04 0.87 13 1.53 1.59 1.08 1.57 1.15 1.07 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 56.44)(1.12) + 54.99 0.96(F 9 - 50.97)(0.99) + 54.99 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 7 0.960 0.933 0.928 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.3 63.4 65.5 65.1 64.0 63.0 63.4 64.3 66.9 61.3 63.4 65.3 63.7 64.1 60.0 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 S- 10 -0.8 -1.2 -1.2 -1.6 -1.4 -0.8 -1.2 -0.7 -1.0 -1.4 -2.0 -1.1 -1.3 -1.2 -1.7 S- 13 -3.1 -3.3 -3.5 -4.8 -4.1 -3.5 -3.2 -3.5 -3.1 -3.8 -4.1 -3.0 -4.5 -3.9 -3.8 S- 9 4.4 3.9 4.3 3.4 2.9 3.7 4.9 5.0 3.1 3.4 3.4 4.7 3.9 3.8 3.9 S- 7 2.2 2.5 2.7 2.1 1.6 2.1 2.2 3.1 2.2 2.3 1.6 2.2 2.7 2.8 0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.89-0.83-0.53-0.77-1.09-1.38 64.85 65.60-0.75 63.72 64.96-1.24 -0.49 13 -3.66-3.84-3.55-3.48-3.72-3.75 68.64-3.79 67.41-3.69 0.10 9 4.13 4.39 4.01 4.27 4.11 3.74 60.56 4.29 59.81 3.91 -0.38 7 2.67 3.03 2.97 2.64 2.42 2.12 61.88 2.97 61.50 2.21 -0.75 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.44 1.42 1.34 1.39 0.96 1.63 1.58 1.03 1.07 13 1.50 1.36 0.99 1.66 0.98 0.99 9 1.51 1.56 0.86 1.75 0.93 1.08 7 1.33 1.27 1.05 1.46 1.11 1.06 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.98(F 10 - 64.96)(1.03) + 63.72 0.97(F 13 - 67.41)(0.98) + 63.72 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.937 0.918 0.883 0.878 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.4 70.5 70.9 72.2 72.2 70.7 70.8 71.4 73.4 68.8 71.4 70.6 71.0 70.3 67.9 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 S- 10 -0.9 -0.9 -0.9 -1.8 -1.8 -0.6 -1.0 -0.8 -1.3 -1.3 -2.4 -1.8 -1.2 -1.3 -1.8 S- 9 4.2 4.3 4.3 3.7 2.6 3.5 4.5 5.0 3.0 3.7 3.2 3.9 3.8 3.8 3.4 S- 7 1.4 2.0 1.8 1.1 1.1 0.6 1.8 2.4 1.2 2.0 0.9 0.7 1.5 2.2 0.4 S- 38 1.2 2.0 1.7 0.5 -0.1 0.7 2.7 2.7 0.4 1.5 1.1 1.6 1.3 0.9 0.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.00-0.89-0.58-0.97-1.15-1.58 71.36 72.15-0.79 70.83 72.15-1.32 -0.53 9 3.89 4.06 3.96 3.82 3.96 3.54 67.31 4.05 67.04 3.79 -0.26 7 1.68 2.09 1.84 1.51 1.55 1.28 69.39 1.97 69.42 1.41 -0.56 38 1.14 0.95 1.28 1.03 1.32 1.08 70.33 1.03 69.57 1.26 0.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.29 1.30 1.23 1.15 1.06 1.28 1.40 0.92 0.86 9 1.42 1.45 0.84 1.53 0.84 0.99 7 1.20 1.07 1.14 1.38 0.93 0.81 38 1.56 1.61 0.76 1.65 0.77 1.02 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 72.15)(0.92) + 70.83 0.96(F 9 - 67.04)(0.84) + 70.83 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.897 0.877 0.848 0.837 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.3 74.4 73.2 74.2 75.8 75.1 74.9 74.7 75.1 72.3 74.9 74.7 75.5 73.9 72.1 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 10 -0.9 -0.7 -1.2 -2.4 -1.8 -1.0 -1.0 -1.1 -1.6 -1.7 -2.3 -1.6 -1.1 -0.9 -1.9 S- 9 3.8 3.9 4.0 3.2 3.1 3.0 4.1 4.4 3.2 3.8 2.8 3.4 3.1 4.1 2.9 S- 7 1.0 1.4 1.2 0.8 1.1 0.2 1.7 1.5 0.5 1.7 0.6 0.7 1.0 1.5 0.0 S- 38 0.0 1.1 1.2 0.1 1.0 0.3 2.1 2.1 0.7 2.0 0.6 1.2 0.2 1.5 0.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.11-0.94-0.71-1.14-1.33-1.57 74.57 75.44-0.87 74.40 75.81-1.41 -0.54 9 3.82 4.01 4.07 3.84 3.70 3.33 70.51 4.06 70.87 3.53 -0.53 7 1.19 1.59 1.22 1.09 1.12 0.85 73.07 1.50 73.42 0.98 -0.52 38 1.00 0.77 1.42 0.93 0.94 0.93 73.63 0.94 73.43 0.97 0.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.13 1.07 1.02 0.93 1.09 1.06 1.08 0.98 0.90 9 1.17 1.06 0.96 1.25 0.85 0.89 7 1.05 0.92 1.11 1.18 0.89 0.81 38 1.33 1.30 0.78 1.39 0.76 0.97 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 75.81)(0.98) + 74.40 0.94(F 9 - 70.87)(0.85) + 74.40 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.932 0.891 0.890 0.858 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.0 71.5 71.9 72.5 74.5 73.6 73.0 73.0 73.8 71.9 74.2 71.8 73.7 72.1 71.1 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 S- 10 -1.4 -1.1 -1.5 -2.4 -1.8 -1.0 -1.0 -1.3 -1.6 -2.0 -2.2 -1.8 -1.4 -1.1 -2.4 S- 9 3.8 4.0 3.5 2.7 3.6 2.9 4.0 3.9 3.6 3.6 3.0 3.5 3.4 4.4 3.3 S- 7 0.7 1.1 0.3 0.7 1.7 0.7 1.7 1.8 1.1 1.8 1.1 0.7 0.6 1.4 0.1 S- 38 -0.3 1.1 1.0 -0.5 1.7 0.2 1.7 1.5 1.3 2.0 1.4 1.5 0.4 1.6 0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.30-1.05-1.07-1.35-1.42-1.78 73.29 74.33-1.04 72.84 74.43-1.59 -0.55 9 3.77 3.95 3.89 3.87 3.56 3.52 69.36 3.93 69.30 3.54 -0.40 7 1.18 1.55 1.04 1.27 1.02 0.98 71.85 1.44 71.81 1.03 -0.41 38 1.00 0.72 1.24 1.09 0.77 1.24 72.45 0.85 71.83 1.01 0.16 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.33 1.24 1.23 1.12 1.11 1.05 1.08 0.97 0.88 9 1.38 1.36 0.91 1.21 0.87 0.95 7 1.19 1.31 0.94 1.04 1.01 1.07 38 1.54 1.41 0.88 1.33 0.79 0.90 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 74.43)(0.97) + 72.84 0.94(F 9 - 69.30)(0.87) + 72.84 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.943 0.924 0.903 0.895 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 67.4 67.9 66.6 66.2 65.3 64.7 67.1 67.2 66.9 64.1 66.4 64.5 67.3 65.7 64.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 S- 10 -1.6 -1.3 -2.3 -2.3 -1.9 -1.5 -1.0 -1.3 -1.6 -2.1 -2.2 -1.9 -1.8 -1.6 -2.8 S- 7 1.0 1.7 0.6 1.2 1.6 1.1 1.7 1.6 1.1 1.6 1.5 1.2 0.5 1.1 0.0 S- 9 3.7 3.6 2.9 3.0 3.4 3.3 4.5 4.1 3.4 3.1 3.1 3.2 3.1 3.6 3.1 S- 13 -3.3 -3.1 -3.7 -4.2 -3.6 -3.5 -2.2 -3.9 -2.8 -3.8 -4.1 -3.4 -3.3 -3.0 -4.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.49-1.38-1.40-1.30-1.53-1.99 66.86 68.22-1.36 66.11 67.92-1.81 -0.45 7 1.40 1.55 1.19 1.82 1.35 0.98 65.38 1.48 64.95 1.16 -0.32 9 3.74 3.80 3.72 4.19 3.60 3.24 63.15 3.71 62.70 3.41 -0.30 13 -3.26-3.45-3.12-2.85-3.40-3.59 70.25-3.38 69.62-3.52 -0.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.56 1.42 1.50 1.31 1.14 1.22 1.07 1.15 1.01 7 1.41 1.37 1.09 1.22 1.00 0.92 9 1.50 1.33 1.13 1.10 1.12 0.99 13 1.44 1.41 1.07 1.10 1.11 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 67.92)(1.15) + 66.11 0.96(F 7 - 64.95)(1.00) + 66.11 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 13 0.914 0.907 0.901 0.876 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.6 57.7 60.3 57.6 56.3 54.4 58.2 59.3 57.5 56.1 56.9 56.9 55.5 54.8 54.4 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 7 1.1 1.7 1.7 1.8 1.5 1.0 2.4 2.1 1.9 1.9 1.8 0.8 0.3 0.8 -0.2 S- 10 -1.9 -1.8 -2.8 -3.1 -2.2 -2.0 -1.4 -1.4 -1.7 -2.5 -3.2 -2.6 -2.7 -2.5 -3.5 S- 9 4.0 3.8 2.7 2.7 3.6 3.4 4.8 4.2 4.1 3.1 3.2 2.7 3.5 3.7 3.0 S- 13 -3.3 -3.8 -4.7 -5.5 -3.6 -4.4 -2.9 -3.5 -2.9 -4.2 -4.6 -3.9 -4.2 -4.2 -5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.70 1.63 1.52 2.37 1.76 1.04 57.52 55.94 1.58 56.90 55.53 1.37 -0.20 10 -1.81-1.79-1.67-1.35-1.82-2.67 59.27-1.75 59.25-2.35 -0.60 9 3.90 3.97 3.77 4.50 3.78 3.31 53.73 3.79 53.41 3.49 -0.30 13 -3.67-3.85-3.57-3.16-3.74-4.16 61.38-3.86 60.96-4.06 -0.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.64 1.45 0.94 1.11 0.85 1.64 1.28 1.29 1.52 10 1.52 0.78 1.20 1.55 1.06 0.89 9 1.66 0.90 1.04 1.63 1.01 0.97 13 1.52 0.79 1.18 1.60 1.03 0.87 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.96(F 7 - 55.53)(1.29) + 56.90 0.95(F 10 - 59.25)(1.06) + 56.90 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 38 0.928 0.927 0.927 0.912 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.1 51.4 49.5 47.1 46.5 44.9 44.1 51.7 48.8 46.3 45.5 48.8 44.6 45.1 44.7 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 7 1.4 2.4 2.7 1.3 1.5 1.4 2.6 2.8 2.4 2.0 0.9 1.0 1.1 0.4 -0.5 S- 10 -2.5 -1.9 -3.0 -4.0 -2.5 -2.2 -2.4 -1.4 -1.9 -2.7 -3.9 -3.2 -3.0 -3.5 -3.9 S- 9 4.0 3.7 3.7 2.6 3.0 3.7 4.7 5.0 4.4 3.5 2.6 2.5 3.5 2.5 2.4 S- 38 1.9 2.0 2.1 1.0 1.1 1.1 2.8 3.6 2.2 1.6 1.4 0.1 2.0 0.0 0.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.07 2.00 2.08 2.86 2.08 1.04 47.16 45.16 2.00 47.01 45.46 1.55 -0.45 10 -2.17-2.12-2.16-1.50-2.21-3.17 49.29-2.13 49.82-2.81 -0.68 9 3.99 4.09 3.88 4.73 3.90 3.06 43.22 3.95 43.56 3.45 -0.50 38 1.91 1.92 1.80 2.67 1.84 1.08 45.35 1.81 45.48 1.54 -0.27 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.14 1.92 1.61 1.48 1.08 2.40 1.99 1.21 1.11 10 1.96 1.43 1.13 2.11 1.14 1.01 9 2.15 1.54 1.04 2.26 1.06 1.02 38 2.17 1.48 1.08 2.20 1.09 1.00 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.96(F 7 - 45.46)(1.21) + 47.01 0.96(F 10 - 49.82)(1.14) + 47.01 Station#1869 LOUISA , va 4505002 lat/lon 78.00 38.03 2M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.937 0.924 0.920 0.906 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.0 40.5 41.4 38.2 39.4 41.0 39.2 44.4 42.2 40.8 36.7 42.8 35.7 38.0 38.0 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 S- 10 -3.1 -2.0 -2.8 -4.3 -2.6 -2.4 -2.5 -1.6 -2.4 -3.4 -4.5 -3.5 -3.5 -3.8 -5.6 S- 9 3.8 4.8 4.7 2.3 3.0 3.0 4.9 4.9 5.0 2.8 3.0 3.0 3.1 2.9 0.6 S- 13 -6.2 -4.5 -5.1 -7.2 -4.9 -5.3 -5.7 -3.6 -4.3 -5.3 -6.5 -4.9 -6.1 -6.6 -6.9 S- 38 2.6 3.4 3.4 0.6 0.8 0.4 2.8 3.4 3.1 1.4 1.9 1.3 1.4 1.0 -1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.48-2.39-2.29-1.89-2.43-3.81 39.70 42.12-2.42 39.69 42.90-3.20 -0.79 9 4.23 4.30 4.43 5.05 4.05 2.92 35.43 4.27 36.24 3.45 -0.82 13 -5.10-5.45-5.05-4.40-5.04-5.79 45.11-5.41 45.23-5.54 -0.13 38 2.36 2.16 2.56 3.40 2.11 1.22 37.37 2.33 37.97 1.72 -0.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.51 2.36 2.17 1.90 1.14 2.39 1.95 1.22 1.07 9 2.64 2.20 0.99 2.10 1.14 1.15 13 2.24 1.95 1.11 1.65 1.45 1.30 38 2.70 2.22 0.98 2.24 1.06 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 42.90)(1.22) + 39.69 0.96(F 9 - 36.24)(1.14) + 39.69 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.85 39.73 45.68 53.57 62.51 69.20 72.70 71.64 66.11 55.56 46.05 39.69 1952 39.00 40.31 45.15 53.05 63.72 71.08 74.62 71.64 64.09 55.27 45.73 41.19 1953 39.33 42.47 46.79 55.48 64.41 72.01 74.04 72.34 66.60 57.35 47.88 40.09 1954 39.13 41.12 49.08 54.31 63.07 68.20 73.08 73.06 68.02 57.92 46.09 37.28 1955 35.44 39.99 48.40 57.57 63.60 70.29 73.64 73.99 67.08 56.91 45.41 37.17 1956 35.83 39.26 45.85 53.21 62.28 69.31 72.31 70.10 64.47 55.31 49.04 40.86 1957 39.51 39.11 47.34 55.18 64.56 69.83 72.12 71.08 63.81 55.47 45.66 38.83 1958 33.10 32.79 40.56 51.41 61.44 68.44 71.52 70.65 63.91 56.33 44.92 37.71 1959 34.53 38.93 46.54 55.42 64.08 70.05 73.49 73.10 68.00 57.60 47.81 40.30 1960 37.20 34.64 41.83 50.14 62.91 67.71 72.53 71.66 65.90 56.66 44.06 34.81 1961 31.65 37.47 44.63 51.55 59.19 67.25 71.96 72.18 66.71 58.36 46.68 38.75 1962 35.20 36.97 43.44 52.98 62.90 68.98 71.10 69.10 64.81 55.12 43.49 34.11 1963 29.69 36.15 44.34 54.77 62.12 68.09 71.41 69.47 64.71 56.48 44.19 35.83 1964 31.08 37.03 43.63 54.06 62.77 69.61 72.01 70.42 62.76 55.02 45.84 39.62 1965 35.68 36.52 43.33 53.65 62.54 69.09 70.68 71.02 64.28 55.44 45.62 36.55 1966 31.65 32.95 40.49 49.89 58.46 67.08 71.10 69.00 61.27 52.23 42.11 37.15 1967 31.96 35.44 41.47 50.31 59.13 64.62 69.07 66.49 60.18 50.08 41.66 32.80 1968 29.47 32.59 41.79 50.96 58.71 64.96 70.27 69.02 62.90 53.63 43.19 34.58 1969 30.76 32.79 41.87 51.75 62.61 69.03 71.62 69.64 62.57 52.89 41.55 32.19 1970 29.34 31.85 41.16 51.45 61.69 68.28 70.81 70.91 65.52 56.46 45.45 35.73 1971 32.23 33.45 41.07 49.14 59.67 66.86 70.63 69.66 65.47 56.80 48.00 39.84 1972 35.80 36.10 41.63 51.39 59.11 66.01 69.12 69.09 61.64 51.83 43.39 37.49 1973 34.75 37.51 43.82 52.09 59.74 66.75 71.47 70.01 64.17 55.11 44.76 39.88 1974 36.15 39.44 43.82 53.08 59.87 65.82 69.04 66.70 58.80 49.82 42.60 38.08 1975 35.31 36.32 40.85 50.32 60.27 67.93 71.01 68.96 64.38 56.02 46.53 37.51 1976 35.40 39.51 47.39 53.03 60.86 66.57 70.13 68.09 60.31 49.89 38.82 29.26 1977 27.40 33.53 45.84 56.06 62.09 68.66 71.51 71.81 63.56 54.53 43.20 34.58 1978 27.46 29.10 37.99 49.43 59.56 66.17 71.35 71.17 64.31 54.71 44.88 37.34 1979 30.76 32.95 40.79 52.33 59.56 65.98 69.40 68.54 61.81 54.14 44.79 38.33 1980 32.17 33.55 40.50 51.42 60.64 67.47 71.01 71.22 63.78 53.11 41.35 32.79 1981 30.57 32.61 42.62 50.50 60.79 65.92 69.34 67.50 60.47 51.99 41.34 32.84 1982 29.90 33.63 42.21 52.24 60.38 67.79 68.79 67.36 61.03 53.76 46.47 38.89 1983 34.95 36.04 42.31 50.86 59.36 66.89 71.82 70.17 64.32 54.73 43.86 34.46 1984 31.90 34.33 42.48 50.76 61.72 68.53 71.66 68.68 65.61 56.41 50.63 38.63 1985 35.18 35.46 46.30 56.06 63.23 67.66 69.71 69.04 64.38 58.54 47.40 38.25 1986 31.83 34.87 43.45 53.15 62.99 69.09 71.20 69.61 63.62 55.09 44.77 35.28 1987 31.31 34.43 42.00 52.68 62.18 69.94 72.87 70.70 62.48 54.24 45.28 37.35 1988 32.55 34.83 43.76 53.07 60.96 69.08 74.06 72.47 63.50 53.57 43.61 39.62 1989 35.90 39.21 42.95 50.84 60.28 68.31 71.97 70.31 64.71 56.86 43.07 37.86 1990 36.46 43.84 47.34 52.93 59.99 67.28 71.17 70.47 65.07 57.55 49.33 41.60 1991 38.95 40.39 46.98 55.64 63.96 70.68 72.49 71.17 65.10 55.51 46.38 38.84 1992 37.48 38.37 44.46 50.55 58.78 65.88 69.37 68.90 62.05 54.10 44.59 38.74 1993 34.93 35.64 40.65 50.09 60.13 68.10 72.06 71.76 64.22 54.72 43.43 34.64 1994 31.08 33.79 43.93 51.44 61.72 67.66 71.94 69.58 63.19 57.09 49.51 43.22 1995 37.33 39.18 45.05 54.12 61.74 68.91 73.63 72.27 66.77 55.34 43.82 34.92 1996 32.99 35.33 42.41 50.86 61.95 68.00 71.55 69.67 64.22 54.16 45.09 37.30 1997 36.79 38.99 44.95 51.06 58.69 66.54 70.80 69.88 63.73 54.62 45.57 37.63 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 7 0.906 0.905 0.894 0.892 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.0 31.9 35.2 31.8 31.3 32.5 35.9 36.5 39.0 37.5 34.9 31.1 37.3 33.0 36.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 S- 9 -0.3 0.5 2.3 0.3 -1.1 0.4 1.4 2.8 2.6 1.7 1.0 0.8 3.2 2.4 1.4 S- 10 -5.7 -6.6 -5.1 -7.1 -7.0 -5.6 -4.8 -4.5 -4.5 -5.2 -5.4 -6.5 -4.1 -4.2 -5.0 S- 13 -8.3 -9.9 -8.3-10.7-10.1 -8.4 -8.4 -8.2 -6.9 -8.5 -8.0-10.0 -6.3 -7.9 -7.9 S- 7 -1.3 -0.9 0.3 -0.5 -1.9 -0.3 0.9 1.9 1.6 1.1 0.6 0.7 1.5 1.6 0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.52 3.22 1.26 0.69 0.67 1.87 35.55 32.62 2.93 34.64 33.35 1.29 -1.63 10 -5.37-3.38-5.79-6.56-5.99-5.00 39.40-3.85 40.07-5.43 -1.58 13 -8.68-6.93-9.22-9.81-9.30-7.93 42.99-7.44 43.16-8.52 -1.08 7 0.53 2.24 0.28-0.39-0.38 1.02 33.45 2.10 34.28 0.37 -1.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 3.18 2.89 3.01 2.99 1.01 2.45 1.85 1.33 1.32 10 2.48 2.49 1.21 1.82 1.35 1.11 13 2.54 2.78 1.08 1.66 1.47 1.36 7 2.52 2.68 1.12 2.00 1.23 1.09 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.95(F 9 - 33.35)(1.33) + 34.64 0.95(F 10 - 40.07)(1.35) + 34.64 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.911 0.890 0.889 0.877 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.0 34.3 35.5 34.9 34.4 34.8 39.2 43.8 40.4 38.4 35.6 33.8 39.2 35.3 39.0 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 S- 10 -5.8 -6.3 -5.5 -7.6 -5.8 -5.0 -4.3 -4.4 -4.6 -5.3 -5.9 -7.0 -3.8 -4.1 -5.2 S- 9 0.0 0.5 2.0 -1.0 -0.9 0.9 1.0 1.8 2.4 1.3 0.4 0.6 3.2 2.5 1.1 S- 7 -1.0 0.1 -0.1 -1.4 -1.2 0.2 1.8 1.8 1.5 1.3 0.7 1.6 1.7 1.7 0.6 S- 13 -8.3-10.8 -9.2-11.8 -9.5 -8.2 -8.5 -7.5 -7.6 -8.8 -9.1-11.5 -6.8 -8.0 -9.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -5.21-3.49-5.39-6.27-5.76-5.12 38.17 41.89-3.72 36.98 42.35-5.37 -1.64 9 1.43 3.20 1.25 0.64 0.47 1.65 35.21 2.95 35.92 1.06 -1.90 7 0.80 2.37 0.74-0.10-0.12 1.28 35.81 2.36 36.37 0.61 -1.75 13 -9.01-7.38-9.14*****-9.56-8.84 45.76-7.60 46.03-9.05 -1.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 3.10 2.45 2.47 2.14 1.15 2.77 2.25 1.23 1.07 9 2.79 2.46 1.01 2.36 1.17 1.16 7 2.26 1.94 1.27 2.33 1.19 0.93 13 2.57 2.47 1.00 2.21 1.25 1.25 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 42.35)(1.23) + 36.98 0.94(F 9 - 35.92)(1.17) + 36.98 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.888 0.863 0.844 0.827 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.3 42.5 46.3 43.5 42.0 43.8 43.0 47.3 47.0 44.5 40.7 43.9 45.0 42.4 45.0 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 -5.0 -5.1 -4.1 -6.1 -4.3 -3.8 -5.0 -5.0 -4.3 -4.7 -5.5 -6.3 -3.5 -4.0 -4.4 S- 7 -0.5 0.5 1.1 0.3 -0.6 1.2 0.7 0.8 1.0 1.8 0.6 0.9 2.5 1.2 0.5 S- 9 0.4 1.0 2.6 -0.7 0.1 1.8 0.8 1.2 1.8 1.3 0.8 0.4 2.9 2.6 1.6 S- 13 -7.8 -8.8 -7.4-10.8 -8.0 -7.3 -9.3 -8.1 -7.8 -8.0 -8.4-10.0 -7.5 -7.7 -8.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -4.58-3.15-4.56-5.55-4.99-4.66 45.11 48.40-3.29 43.93 48.67-4.74 -1.45 7 0.96 2.31 1.10 0.04 0.23 1.20 42.80 2.31 43.14 0.79 -1.51 9 1.48 3.19 1.22 0.62 0.82 1.60 42.19 2.92 42.70 1.23 -1.68 13 -8.35-6.76-8.59-9.35-8.73-8.31 52.13-7.02 52.32-8.38 -1.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.44 1.97 2.28 1.95 1.17 1.86 1.80 1.04 0.89 7 1.89 1.67 1.36 1.66 1.12 0.82 9 2.04 2.10 1.08 1.69 1.10 1.02 13 1.96 2.04 1.12 1.92 0.97 0.87 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 48.67)(1.04) + 43.93 0.93(F 7 - 43.14)(1.12) + 43.93 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 7 9 0.876 0.839 0.826 0.824 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.9 50.8 56.1 53.2 52.7 53.1 50.8 52.9 55.6 50.5 50.1 51.4 54.1 50.9 51.1 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 S- 10 -4.6 -3.5 -3.1 -4.5 -3.3 -2.6 -4.4 -5.0 -4.3 -4.6 -5.5 -5.8 -3.2 -4.0 -4.0 S- 13 -7.2 -7.2 -5.8 -8.0 -6.7 -5.9 -7.8 -8.0 -7.2 -7.4 -7.8 -9.0 -7.4 -7.7 -7.9 S- 7 -0.5 1.6 1.3 -0.6 -0.1 1.2 0.0 0.0 0.1 0.6 -0.8 -0.5 1.7 0.9 0.3 S- 9 1.1 2.5 2.4 0.5 0.7 2.1 0.8 0.8 0.5 0.6 0.3 0.9 2.5 1.7 2.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -4.00-2.98-3.93-4.68-4.05-4.48 53.76 56.76-3.01 52.27 56.44-4.16 -1.16 13 -7.39-6.33-7.63-7.98-7.35-7.76 60.19-6.44 59.67-7.39 -0.96 7 0.60 1.79 0.83-0.23 0.21 0.32 52.01 1.75 51.92 0.35 -1.40 9 1.40 2.79 1.06 0.66 1.17 1.25 51.18 2.57 50.97 1.31 -1.27 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.98 1.52 1.80 1.54 1.17 1.81 1.62 1.12 0.96 13 1.53 1.59 1.13 1.57 1.15 1.02 7 1.59 1.43 1.26 1.74 1.04 0.83 9 1.68 1.70 1.06 1.83 0.99 0.94 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.94(F 10 - 56.44)(1.12) + 52.27 0.92(F 13 - 59.67)(1.15) + 52.27 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 7 0.857 0.852 0.836 0.826 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.4 61.7 63.2 63.0 62.2 61.0 60.3 60.0 64.0 58.8 60.1 61.7 61.7 62.0 58.7 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 S- 10 -3.8 -2.8 -3.5 -3.7 -3.2 -2.8 -4.3 -5.0 -3.9 -4.0 -5.2 -4.6 -3.2 -3.3 -3.0 S- 13 -6.1 -4.9 -5.8 -7.0 -5.9 -5.6 -6.3 -7.8 -6.0 -6.4 -7.4 -6.6 -6.4 -6.1 -5.2 S- 9 1.4 2.2 2.0 1.2 1.1 1.6 1.8 0.6 0.2 0.8 0.2 1.1 2.0 1.7 2.5 S- 7 -0.8 0.8 0.4 -0.1 -0.2 0.0 -0.9 -1.3 -0.7 -0.2 -1.6 -1.3 0.8 0.6 -0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -3.68-2.84-3.53-4.27-3.93-3.91 62.81 65.60-2.79 61.18 64.96-3.78 -0.99 13 -6.45-5.84-6.56-6.99-6.55-6.28 68.64-5.83 67.41-6.23 -0.40 9 1.34 2.39 1.01 0.76 1.28 1.21 60.56 2.24 59.81 1.37 -0.87 7 -0.12 1.03-0.03-0.87-0.41-0.41 61.88 0.92 61.50-0.33 -1.25 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.71 1.42 1.28 1.39 0.92 1.56 1.58 0.98 1.07 13 1.50 1.36 0.95 1.66 0.94 0.99 9 1.51 1.56 0.82 1.75 0.89 1.08 7 1.33 1.27 1.01 1.46 1.06 1.06 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.93(F 10 - 64.96)(0.98) + 61.18 0.92(F 13 - 67.41)(0.94) + 61.18 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 7 10 0.828 0.822 0.796 0.794 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.9 68.5 67.7 69.1 69.9 69.1 68.3 67.3 70.7 65.9 68.1 67.7 68.9 68.0 66.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 S- 9 0.7 2.4 1.1 0.6 0.3 1.9 1.9 0.9 0.3 0.8 -0.2 1.0 1.7 1.5 2.0 S- 38 -2.3 0.0 -1.6 -2.6 -2.3 -0.9 0.2 -1.4 -2.3 -1.4 -2.3 -1.3 -0.8 -1.4 -0.5 S- 7 -2.1 0.0 -1.4 -2.0 -1.2 -1.0 -0.8 -1.6 -1.5 -1.0 -2.4 -2.2 -0.6 -0.1 -1.0 S- 10 -4.4 -2.9 -4.1 -4.9 -4.0 -2.2 -3.5 -4.9 -4.1 -4.2 -5.7 -4.6 -3.3 -3.6 -3.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.12 2.03 0.95 0.63 0.94 1.02 69.28 67.31 1.97 68.17 67.04 1.13 -0.84 38 -1.63-1.08-1.73-2.16-1.69-1.45 70.33-1.06 69.57-1.40 -0.35 7 -1.09 0.06-1.16-1.69-1.47-1.24 69.39-0.12 69.42-1.25 -1.13 10 -3.77-2.93-3.59-4.16-4.17-4.10 72.15-2.87 72.15-3.98 -1.11 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.59 1.42 1.23 1.45 0.85 1.23 1.53 0.80 0.95 38 1.56 1.61 0.76 1.65 0.74 0.98 7 1.20 1.07 1.15 1.38 0.89 0.77 10 1.30 1.15 1.07 1.40 0.88 0.82 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.91(F 9 - 67.04)(0.80) + 68.17 0.91(F 38 - 69.57)(0.74) + 68.17 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 6 9 38 8 0.793 0.793 0.791 0.759 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.8 71.7 69.7 71.2 72.9 74.1 72.0 71.2 72.5 69.4 72.1 71.9 73.6 71.6 70.8 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8 S- 6 -1.0 0.9 0.8 0.4 0.4 1.1 1.3 1.3 -0.5 1.4 0.1 0.9 0.2 1.1 1.3 S- 9 0.4 1.2 0.6 0.2 0.2 2.0 1.2 0.9 0.5 0.8 -0.1 0.7 1.3 1.8 1.6 S- 38 -3.4 -1.6 -2.2 -2.9 -1.9 -0.8 -0.8 -1.4 -1.9 -1.0 -2.2 -1.5 -1.7 -0.8 -1.0 S- 8 2.7 4.0 3.4 3.6 3.1 3.8 3.5 3.2 1.9 3.4 2.5 2.8 2.5 2.7 3.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 6 0.68 1.52 0.64 0.16 0.41 0.67 72.48 70.99 1.49 71.75 71.09 0.66 -0.83 9 1.02 1.99 1.06 0.53 0.57 0.95 70.51 1.97 70.87 0.88 -1.09 38 -1.79-1.25-1.58-2.37-2.20-1.45 73.63-1.15 73.43-1.68 -0.53 8 3.14 4.13 2.93 2.65 3.19 2.68 68.42 4.06 68.69 3.07 -1.00 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 6 1.42 1.34 1.08 1.30 0.83 1.22 1.57 0.78 0.93 9 1.17 1.06 1.02 1.25 0.97 0.95 38 1.33 1.30 0.83 1.39 0.88 1.05 8 1.27 1.27 0.85 1.43 0.85 1.00 Suggested regression eqns from two most closely related CDs ( 6 and 9): 0.89(F 6 - 71.09)(0.78) + 71.75 0.89(F 9 - 70.87)(0.97) + 71.75 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 9 6 11 0.816 0.806 0.797 0.796 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.2 68.7 69.0 69.6 70.7 72.5 70.3 70.5 71.2 68.9 71.8 69.6 72.3 69.7 69.9 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 S- 38 -4.1 -1.7 -1.9 -3.3 -2.1 -0.9 -1.1 -1.0 -1.2 -0.9 -1.0 -0.8 -1.0 -0.8 -0.8 S- 9 0.0 1.2 0.6 -0.2 -0.2 1.8 1.3 1.4 1.0 0.6 0.6 1.2 1.9 2.0 2.1 S- 6 -1.5 1.0 0.2 -0.5 0.2 1.3 1.4 1.9 0.8 1.6 1.7 1.3 1.6 1.3 2.3 S- 11 -1.7 -0.5 -0.6 -2.6 -1.2 1.0 0.1 -0.6 -0.3 -1.2 -1.0 0.2 0.4 0.0 -0.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -1.71-1.12-1.51-2.47-2.28-0.94 71.43 72.45-1.02 70.31 71.83-1.52 -0.51 9 1.07 2.11 1.14 0.31 0.51 1.34 69.36 2.07 69.30 1.01 -1.06 6 0.94 1.79 0.89 0.40 0.28 1.52 69.66 1.77 69.33 0.98 -0.79 11 -0.67 0.07-0.45-1.40-1.15-0.33 71.32 0.11 70.88-0.56 -0.67 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.65 1.54 1.33 1.41 0.94 1.14 1.33 0.85 0.91 9 1.38 1.36 0.98 1.21 0.94 0.96 6 1.46 1.52 0.88 1.34 0.85 0.97 11 1.34 1.14 1.16 1.11 1.02 0.88 Suggested regression eqns from two most closely related CDs ( 38 and 9): 0.90(F 38 - 71.83)(0.85) + 70.31 0.90(F 9 - 69.30)(0.94) + 70.31 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 6 8 0.823 0.818 0.815 0.815 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.3 65.6 64.4 63.6 62.5 63.5 64.7 65.1 65.1 62.0 64.2 63.2 66.8 64.2 63.7 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 cd 8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3 S- 11 -1.4 -0.6 -1.2 -2.2 -1.1 0.4 0.6 -0.2 -0.1 -1.1 -0.8 -0.2 1.2 0.1 -0.2 S- 9 0.6 1.3 0.7 0.3 0.6 2.1 2.1 1.9 1.6 1.0 0.9 1.9 2.6 2.1 2.5 S- 6 -0.2 2.0 0.9 0.0 1.2 2.3 2.7 2.6 1.3 2.0 2.3 1.7 2.6 1.7 2.6 S- 8 3.2 4.4 3.5 3.5 4.1 4.7 4.5 4.5 4.0 4.3 4.3 4.7 4.3 3.6 4.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.85 0.01-0.77-2.02-1.12-0.14 65.42 65.38 0.03 64.20 64.65-0.45 -0.48 9 1.21 2.36 1.15 0.03 0.89 1.83 63.15 2.27 62.70 1.50 -0.76 6 1.34 2.26 1.06 0.49 1.04 2.04 63.27 2.15 62.48 1.72 -0.43 8 3.82 4.91 3.49 2.88 3.71 4.25 60.57 4.85 60.06 4.14 -0.71 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.01 1.43 1.56 1.27 1.24 1.16 1.04 1.12 0.90 9 1.50 1.33 1.18 1.10 1.06 0.90 6 1.60 1.42 1.10 1.29 0.90 0.82 8 1.57 1.59 0.99 1.25 0.92 0.94 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.91(F 11 - 64.65)(1.12) + 64.20 0.90(F 9 - 62.70)(1.06) + 64.20 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 5 8 7 13 0.785 0.783 0.774 0.759 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 54.7 56.4 58.5 55.1 54.2 53.6 56.9 57.5 55.5 54.1 54.7 57.1 55.3 54.2 54.6 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 5 4.0 6.3 6.8 5.7 5.4 5.3 7.5 6.3 5.6 5.8 6.5 6.1 6.6 6.0 6.3 S- 8 3.5 5.6 5.3 4.5 4.6 4.9 6.4 5.1 4.9 4.7 4.8 6.0 5.4 4.7 5.1 S- 7 -1.7 0.3 0.0 -0.7 -0.5 0.2 1.0 0.3 -0.1 0.0 -0.4 1.0 0.1 0.2 0.0 S- 13 -6.2 -5.2 -6.4 -8.0 -5.6 -5.3 -4.2 -5.3 -4.9 -6.1 -6.8 -3.7 -4.4 -4.8 -4.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 5 5.13 5.81 4.28 4.25 5.48 6.12 56.32 50.65 5.67 55.50 49.48 6.02 0.35 8 4.29 5.32 3.66 3.10 4.54 5.07 51.17 5.15 50.48 5.03 -0.13 7 -0.66 0.48-1.05-2.03-0.56 0.10 55.94 0.38 55.53-0.02 -0.40 13 -6.03-5.00-6.14-7.56-6.07-5.10 61.38-5.06 60.96-5.45 -0.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 5 2.06 1.65 1.07 1.17 0.91 1.41 1.17 1.20 1.32 8 1.60 1.18 0.91 1.16 1.21 1.34 7 1.45 1.11 0.97 1.28 1.11 1.15 13 1.52 0.79 1.35 1.60 0.88 0.65 Suggested regression eqns from two most closely related CDs ( 5 and 8): 0.89(F 5 - 49.48)(1.20) + 55.50 0.88(F 8 - 50.48)(1.21) + 55.50 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 8 13 0.838 0.829 0.824 0.823 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.9 50.6 47.4 44.8 45.3 43.6 43.1 49.3 46.4 44.6 43.4 49.5 43.8 45.1 45.6 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 S- 7 -0.9 1.7 0.6 -1.1 0.2 0.1 1.6 0.4 -0.1 0.2 -1.2 1.7 0.4 0.4 0.4 S- 9 1.7 3.0 1.6 0.3 1.8 2.4 3.7 2.6 2.0 1.8 0.5 3.2 2.8 2.5 3.3 S- 8 5.0 7.1 6.6 4.4 5.0 4.9 7.3 5.5 4.9 5.2 4.1 6.9 5.5 4.7 5.3 S- 13 -6.9 -4.9 -7.4 -8.6 -5.5 -6.0 -6.2 -5.4 -6.0 -6.1 -7.3 -4.0 -5.8 -5.3 -4.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -0.29 0.92-0.74-1.62-0.12 0.26 45.90 45.16 0.74 45.76 45.46 0.29 -0.44 9 1.62 3.02 1.06 0.25 1.70 2.28 43.22 2.68 43.56 2.19 -0.49 8 4.81 6.00 3.97 3.77 5.20 5.24 40.25 5.65 40.25 5.51 -0.14 13 -6.64-5.52-7.22-7.93-6.63-5.56 51.66-5.76 51.75-5.99 -0.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.35 1.92 1.45 1.48 0.98 2.33 1.99 1.17 1.20 9 2.15 1.54 0.94 2.26 1.03 1.10 8 2.13 1.66 0.87 2.02 1.15 1.32 13 1.84 1.31 1.10 2.05 1.13 1.03 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.92(F 7 - 45.46)(1.17) + 45.76 0.91(F 9 - 43.56)(1.03) + 45.76 Station#1870 LURAY/5 E , va 4509604 lat/lon 78.38 38.67 32M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 7 0.890 0.884 0.883 0.881 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 34.5 38.6 38.3 35.3 37.3 39.6 37.9 41.6 38.8 38.7 34.6 43.2 34.9 37.3 37.6 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 S- 9 1.2 2.8 1.6 -0.6 0.9 1.6 3.5 2.1 1.7 0.7 1.0 3.4 2.3 2.1 0.3 S- 10 -5.7 -3.9 -6.0 -7.2 -4.7 -3.8 -3.9 -4.4 -5.7 -5.5 -6.5 -3.1 -4.2 -4.5 -5.9 S- 13 -8.7 -6.4 -8.3-10.1 -7.0 -6.8 -7.0 -6.4 -7.6 -7.4 -8.6 -4.5 -6.9 -7.3 -7.2 S- 7 -0.6 0.9 0.0 -1.7 0.3 0.8 2.0 1.3 -0.3 -0.3 -0.4 1.3 1.1 0.3 -2.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.58 3.15 1.06 0.71 1.35 1.65 38.19 35.43 2.76 37.89 36.24 1.64 -1.11 10 -5.13-3.54-5.66-6.22-5.13-5.08 42.12-3.94 42.90-5.01 -1.07 13 -7.75-6.59-8.42-8.73-7.74-7.07 45.11-6.93 45.23-7.34 -0.41 7 0.06 1.59-0.36-0.89 0.00-0.07 36.91 1.28 37.72 0.17 -1.11 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.75 2.64 2.12 2.20 0.97 2.40 2.10 1.14 1.18 10 2.36 1.90 1.12 1.95 1.23 1.10 13 2.24 1.95 1.09 1.65 1.45 1.33 7 2.43 1.96 1.08 2.15 1.11 1.03 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.94(F 9 - 36.24)(1.14) + 37.89 0.94(F 10 - 42.90)(1.23) + 37.89 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.51 40.85 46.77 54.98 64.17 71.34 75.09 73.78 68.34 57.22 47.34 41.08 1952 40.89 42.96 47.81 55.66 66.19 73.17 75.96 72.59 64.68 56.26 47.03 42.67 1953 40.68 43.58 48.39 57.68 66.55 73.87 75.67 73.97 68.40 59.19 49.42 41.39 1954 39.93 42.04 49.93 55.47 64.68 70.04 74.88 74.74 69.13 58.72 46.93 38.66 1955 37.15 41.05 49.29 58.27 64.74 71.05 74.11 74.34 67.27 56.96 45.53 38.42 1956 37.29 41.08 47.05 54.62 63.55 70.85 74.30 72.42 66.46 56.75 50.58 42.86 1957 41.99 41.49 49.76 57.41 66.45 71.78 74.21 72.77 65.16 56.82 47.68 40.99 1958 35.54 35.51 43.09 53.41 63.32 70.46 73.95 72.95 66.03 58.20 46.83 39.85 1959 36.56 40.62 48.06 57.13 66.46 72.39 75.67 74.33 68.71 57.97 48.72 41.55 1960 38.73 36.39 43.81 52.49 65.13 70.27 74.86 73.71 67.90 58.54 46.56 37.83 1961 35.08 40.71 47.00 53.79 60.87 69.06 73.66 73.84 68.12 59.69 48.47 40.32 1962 36.81 38.59 45.36 55.19 64.65 70.73 72.32 70.33 65.95 56.54 46.19 37.29 1963 32.90 38.46 47.30 57.62 64.88 70.08 73.55 71.93 67.31 59.13 46.90 38.72 1964 34.30 39.61 46.07 55.97 65.23 71.41 73.56 71.12 63.68 56.28 47.86 41.87 1965 37.28 37.49 44.06 54.82 64.16 70.65 72.36 72.37 65.90 57.08 47.86 39.98 1966 36.40 38.27 45.40 54.41 62.67 71.22 74.44 72.79 65.20 56.76 47.01 41.98 1967 37.51 40.43 46.22 54.07 62.41 67.44 71.93 69.34 63.11 53.07 45.65 38.14 1968 35.06 38.19 46.25 55.97 63.36 70.04 75.05 73.73 67.61 57.73 46.37 37.72 1969 34.10 36.40 44.83 54.34 64.90 71.26 73.73 71.66 64.84 55.40 44.76 35.81 1970 33.09 35.55 44.59 54.30 64.96 71.48 74.08 74.11 68.86 60.11 48.85 39.92 1971 37.13 38.42 45.62 53.28 63.41 70.00 73.52 72.41 68.37 59.20 51.67 43.75 1972 41.00 40.66 46.35 55.16 62.30 68.64 72.38 72.93 66.08 56.42 47.70 41.35 1973 38.43 41.04 47.18 55.19 62.73 69.62 74.52 73.64 68.47 59.95 48.79 43.66 1974 40.03 44.01 48.32 56.50 62.89 68.70 72.27 71.53 65.05 55.99 47.09 41.56 1975 39.11 40.24 45.04 54.01 63.73 70.67 73.93 72.23 67.29 58.60 48.95 40.02 1976 38.40 42.92 51.31 56.59 63.19 68.70 72.54 71.24 64.23 53.46 42.76 32.57 1977 31.15 37.08 49.31 59.11 65.33 71.86 74.85 74.83 66.82 57.99 46.74 38.17 1978 31.87 34.61 44.10 54.92 64.37 70.14 74.76 74.28 67.88 58.83 48.41 40.43 1979 33.29 36.62 44.89 56.46 63.10 69.11 72.87 72.45 65.98 57.65 48.59 42.11 1980 36.80 37.87 44.86 55.46 64.03 71.00 75.31 76.34 68.75 57.62 46.38 38.31 1981 36.78 38.34 47.89 54.97 65.80 71.47 75.11 72.02 64.40 55.64 44.86 36.12 1982 33.27 37.26 46.12 55.59 64.04 71.28 73.34 72.67 67.05 59.23 51.12 43.35 1983 39.37 40.23 45.85 53.81 62.20 70.52 76.00 74.91 68.19 58.06 46.75 38.41 1984 36.82 39.82 46.89 53.54 63.82 70.30 74.21 71.31 68.69 58.89 52.82 41.65 1985 39.63 40.40 50.23 58.88 66.19 70.76 73.28 72.27 67.36 61.10 50.14 41.79 1986 36.62 40.81 48.60 56.86 65.77 72.52 75.22 73.36 66.78 58.50 48.48 39.95 1987 36.51 39.22 45.99 55.81 65.15 73.63 77.18 75.62 66.45 57.15 47.68 40.72 1988 36.84 38.96 47.06 55.74 63.68 71.21 76.01 74.48 65.46 55.15 45.63 42.19 1989 39.23 42.43 47.07 54.73 63.59 70.49 74.44 72.44 66.63 57.78 44.93 40.04 1990 39.43 46.85 50.90 56.91 63.59 70.11 73.25 72.05 66.54 59.17 51.25 44.41 1991 41.48 43.59 50.02 58.92 66.92 73.79 75.82 74.62 68.23 58.67 49.53 42.84 1992 41.12 42.58 47.95 54.66 62.65 70.14 73.88 73.30 65.98 57.74 48.08 42.59 1993 38.84 40.17 45.58 55.81 65.89 74.05 77.47 76.46 68.42 58.53 47.50 39.01 1994 36.19 39.46 49.47 56.33 65.29 70.47 74.50 72.12 65.36 58.21 50.76 44.78 1995 40.10 42.18 48.47 57.57 64.85 71.66 75.95 74.21 67.87 56.28 45.95 37.51 1996 35.69 37.66 45.02 54.05 64.74 71.09 73.60 70.92 64.68 54.08 45.47 38.23 1997 38.43 41.03 46.49 52.02 58.95 66.95 71.70 71.02 64.28 54.44 44.83 38.20 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.964 0.957 0.940 0.939 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.4 36.8 39.6 36.6 36.5 36.8 39.2 39.4 41.5 41.1 38.8 36.2 40.1 35.7 38.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 -1.3 -1.7 -0.7 -2.3 -1.8 -1.3 -1.4 -1.5 -2.0 -1.6 -1.5 -1.4 -1.4 -1.5 -3.4 S- 9 4.2 5.5 6.8 5.1 4.1 4.7 4.7 5.7 5.2 5.4 5.0 5.9 5.9 5.1 3.0 S- 7 3.2 4.1 4.8 4.3 3.3 4.0 4.2 4.9 4.1 4.7 4.5 5.8 4.3 4.3 1.7 S- 13 -3.9 -4.9 -3.8 -5.9 -4.9 -4.1 -5.0 -5.2 -4.4 -4.9 -4.1 -4.9 -3.6 -5.2 -6.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.97-1.64-2.19-2.58-1.59-1.82 37.58 39.40-1.82 38.42 40.07-1.65 0.17 9 4.91 4.96 4.87 4.66 5.06 5.05 32.62 4.96 33.35 5.07 0.12 7 3.92 3.98 3.89 3.58 4.02 4.20 33.45 4.12 34.28 4.14 0.02 13 -5.29-5.20-5.61-5.84-4.90-4.75 42.99-5.41 43.16-4.74 0.67 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.62 2.48 2.49 2.49 1.00 1.79 1.82 0.98 0.98 9 2.89 2.99 0.83 1.85 0.97 1.16 7 2.52 2.68 0.93 2.00 0.89 0.96 13 2.54 2.78 0.89 1.66 1.08 1.20 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(0.98) + 38.42 0.98(F 9 - 33.35)(0.97) + 38.42 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.967 0.940 0.925 0.924 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.2 39.8 40.4 40.8 39.2 39.0 42.4 46.8 43.6 42.6 40.2 39.5 42.2 37.7 41.0 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -1.6 -0.8 -0.5 -1.7 -1.0 -0.9 -1.1 -1.4 -1.4 -1.1 -1.4 -1.3 -0.8 -1.8 -3.2 S- 9 4.2 6.0 7.0 5.0 3.9 5.0 4.3 4.8 5.6 5.6 4.9 6.3 6.2 4.8 3.1 S- 13 -4.2 -5.3 -4.3 -5.9 -4.7 -4.1 -5.2 -4.5 -4.4 -4.6 -4.6 -5.9 -3.8 -5.7 -7.9 S- 38 1.4 4.0 5.6 2.2 0.5 3.1 2.0 2.6 3.6 2.9 3.0 4.5 3.9 2.9 1.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.74-1.77-2.00-2.07-1.25-1.55 40.03 41.89-1.86 41.03 42.35-1.32 0.54 9 4.90 4.92 4.64 4.85 4.97 5.22 35.21 4.82 35.92 5.10 0.29 13 -5.54-5.65-5.75-5.89-5.05-5.27 45.76-5.74 46.03-5.00 0.73 38 2.62 2.39 2.40 2.77 2.55 3.15 37.64 2.39 38.13 2.89 0.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.50 2.45 2.25 2.14 1.05 2.17 2.25 0.97 0.92 9 2.79 2.46 0.92 2.36 0.92 1.00 13 2.57 2.47 0.91 2.21 0.98 1.08 38 3.03 2.71 0.83 2.54 0.86 1.03 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.35)(0.97) + 41.03 0.97(F 9 - 35.92)(0.92) + 41.03 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 7 0.958 0.913 0.896 0.888 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.8 46.9 50.2 48.6 46.0 47.1 47.1 50.9 50.0 48.0 45.6 49.5 48.5 45.0 46.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 S- 10 -1.5 -0.7 -0.2 -0.9 -0.3 -0.5 -0.9 -1.4 -1.2 -1.2 -0.6 -0.8 -0.1 -1.4 -2.9 S- 9 4.0 5.4 6.6 4.5 4.1 5.1 4.9 4.7 4.8 4.8 5.7 5.9 6.3 5.2 3.1 S- 13 -4.2 -4.4 -3.5 -5.7 -4.0 -4.0 -5.2 -4.5 -4.8 -4.5 -3.4 -4.5 -4.1 -5.0 -7.2 S- 7 3.0 4.9 5.0 5.5 3.4 4.5 4.8 4.4 4.1 5.3 5.5 6.4 5.9 3.8 2.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.24-1.47-1.47-1.23-0.87-1.15 46.92 48.40-1.48 47.71 48.67-0.97 0.51 9 4.82 4.86 4.32 4.94 4.94 5.11 42.19 4.73 42.70 5.01 0.28 13 -5.02-5.09-5.50-5.02-4.61-4.80 52.13-5.21 52.32-4.61 0.60 7 4.30 3.98 4.19 4.37 4.35 4.71 42.80 4.12 43.14 4.57 0.45 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.97 1.97 2.05 1.95 1.05 1.78 1.80 0.99 0.95 9 2.04 2.10 0.97 1.69 1.05 1.08 13 1.96 2.04 1.00 1.92 0.93 0.93 7 1.89 1.67 1.23 1.66 1.07 0.87 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(0.99) + 47.71 0.96(F 9 - 42.70)(1.05) + 47.71 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.927 0.891 0.881 0.842 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.8 53.5 58.9 56.9 55.8 55.7 54.7 56.9 58.9 54.7 55.8 56.3 57.6 54.0 52.0 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 -1.6 -0.8 -0.3 -0.8 -0.1 0.0 -0.5 -1.0 -1.0 -0.5 0.2 -0.9 0.3 -0.9 -3.0 S- 9 4.1 5.3 5.2 4.2 3.8 4.8 4.7 4.8 3.8 4.7 6.0 5.8 6.0 4.9 3.2 S- 7 2.5 4.4 4.1 3.2 3.1 3.9 3.9 4.0 3.4 4.7 4.9 4.4 5.1 4.0 1.3 S- 13 -4.3 -4.4 -2.9 -4.3 -3.5 -3.2 -3.9 -4.0 -3.9 -3.3 -2.1 -4.1 -3.9 -4.5 -7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.92-1.21-1.02-0.84-0.68-0.83 55.63 56.76-1.13 55.71 56.44-0.73 0.40 9 4.47 4.57 3.97 4.50 4.55 4.91 51.18 4.45 50.97 4.74 0.29 7 3.68 3.57 3.74 3.61 3.58 3.98 52.01 3.63 51.92 3.79 0.16 13 -4.31-4.55-4.72-4.14-3.98-4.11 60.19-4.56 59.67-3.96 0.60 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.64 1.52 1.66 1.54 1.08 1.89 1.62 1.17 1.09 9 1.68 1.70 0.97 1.83 1.03 1.06 7 1.59 1.43 1.16 1.74 1.09 0.94 13 1.53 1.59 1.04 1.57 1.20 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 56.44)(1.17) + 55.71 0.94(F 9 - 50.97)(1.03) + 55.71 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 12 0.926 0.910 0.909 0.893 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.2 63.8 66.2 65.8 65.2 63.7 63.6 63.6 66.9 62.7 65.9 65.3 64.8 64.7 59.0 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 S- 10 -1.0 -0.8 -0.5 -1.0 -0.2 -0.1 -1.0 -1.4 -1.0 -0.1 0.5 -1.1 -0.1 -0.6 -2.8 S- 13 -3.2 -2.8 -2.8 -4.2 -2.9 -2.9 -3.0 -4.2 -3.0 -2.5 -1.6 -3.0 -3.3 -3.3 -4.9 S- 9 4.2 4.3 5.0 4.0 4.1 4.4 5.1 4.2 3.2 4.7 5.9 4.7 5.1 4.5 2.8 S- 12 -4.8 -4.9 -4.5 -5.2 -3.9 -4.2 -5.3 -6.2 -5.0 -4.3 -3.0 -4.6 -5.3 -5.1 -7.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.82-0.97-0.73-0.90-0.73-0.73 64.74 65.60-0.86 64.22 64.96-0.74 0.12 13 -3.59-3.97-3.76-3.62-3.36-3.09 68.64-3.90 67.41-3.19 0.71 9 4.20 4.25 3.81 4.13 4.47 4.40 60.56 4.17 59.81 4.41 0.24 12 -5.05-5.04-5.05-5.26-4.94-4.93 69.77-5.03 69.13-4.91 0.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.54 1.42 1.43 1.39 1.03 1.91 1.58 1.21 1.17 13 1.50 1.36 1.06 1.66 1.15 1.09 9 1.51 1.56 0.92 1.75 1.09 1.19 12 1.33 1.16 1.23 1.56 1.22 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.96(F 10 - 64.96)(1.21) + 64.22 0.95(F 13 - 67.41)(1.15) + 64.22 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 11 0.923 0.900 0.882 0.881 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.5 70.3 70.8 72.5 73.6 71.2 70.5 70.1 73.8 70.1 74.1 70.5 71.7 71.1 66.9 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 S- 10 -0.8 -1.1 -1.0 -1.5 -0.4 -0.1 -1.3 -2.0 -1.0 0.1 0.2 -1.8 -0.5 -0.6 -2.7 S- 9 4.4 4.2 4.2 4.0 4.0 4.0 4.1 3.7 3.4 5.0 5.8 3.8 4.5 4.6 2.4 S- 13 -3.1 -2.8 -3.1 -4.3 -2.2 -1.7 -2.4 -4.4 -2.1 -2.0 -2.1 -3.1 -2.6 -3.6 -4.6 S- 11 2.4 2.6 2.2 1.7 2.5 3.3 3.3 1.5 2.8 3.3 3.7 2.5 2.9 2.0 0.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.01-1.02-0.95-1.14-0.99-0.91 71.14 72.15-1.00 71.18 72.15-0.97 0.03 9 3.88 3.94 3.59 3.65 4.12 4.21 67.31 3.83 67.04 4.14 0.30 13 -3.18-3.55-3.11-3.21-3.06-2.86 74.61-3.47 74.11-2.94 0.53 11 2.06 1.76 1.87 1.95 2.31 2.54 69.39 1.75 68.69 2.49 0.74 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.49 1.30 1.21 1.15 1.05 1.74 1.40 1.25 1.19 9 1.42 1.45 0.83 1.53 1.14 1.37 13 1.48 1.32 0.92 1.49 1.17 1.27 11 1.47 1.43 0.85 1.45 1.20 1.41 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 72.15)(1.25) + 71.18 0.95(F 9 - 67.04)(1.14) + 71.18 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 13 0.904 0.858 0.823 0.816 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.0 74.2 73.3 75.2 77.2 76.0 74.4 73.3 75.8 73.9 77.5 74.5 75.9 73.6 71.7 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 S- 10 -0.1 -0.9 -1.1 -1.4 -0.4 0.0 -1.5 -2.5 -0.9 -0.1 0.3 -1.7 -0.6 -1.2 -2.3 S- 9 4.6 3.7 4.2 4.2 4.5 3.9 3.7 3.0 3.9 5.3 5.3 3.3 3.6 3.8 2.5 S- 11 3.2 2.5 2.1 1.6 3.5 3.4 2.9 1.1 3.2 3.7 3.6 2.4 2.9 2.1 1.0 S- 13 -2.1 -2.3 -3.0 -4.0 -1.9 -1.4 -2.3 -4.9 -1.7 -1.9 -1.9 -2.5 -1.9 -3.2 -3.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.10-1.10-1.25-1.22-0.92-0.94 74.28 75.44-1.16 74.83 75.81-0.97 0.19 9 3.84 3.85 3.53 3.76 4.11 3.96 70.51 3.77 70.87 3.96 0.20 11 2.24 1.87 2.11 2.25 2.40 2.70 72.39 1.89 72.21 2.62 0.73 13 -2.85-3.28-2.84-2.79-2.77-2.42 77.48-3.20 77.42-2.59 0.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.31 1.07 1.07 0.93 1.15 1.54 1.08 1.42 1.24 9 1.17 1.06 1.01 1.25 1.23 1.22 11 1.21 1.17 0.91 1.06 1.45 1.58 13 1.24 1.16 0.92 1.16 1.33 1.44 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 75.81)(1.42) + 74.83 0.93(F 9 - 70.87)(1.23) + 74.83 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 13 0.926 0.873 0.864 0.861 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.9 71.3 72.3 73.4 75.6 74.5 72.4 72.1 74.6 73.3 76.5 72.1 74.2 70.9 71.0 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 S- 10 -0.5 -1.3 -1.2 -1.5 -0.6 -0.1 -1.6 -2.2 -0.7 -0.6 0.1 -1.5 -0.9 -2.2 -2.5 S- 9 4.7 3.8 3.8 3.6 4.8 3.8 3.4 3.0 4.4 5.0 5.3 3.8 3.8 3.3 3.2 S- 12 -3.4 -4.5 -4.4 -5.3 -3.3 -3.2 -4.7 -6.2 -3.4 -4.5 -2.8 -4.2 -3.5 -5.8 -5.9 S- 13 -2.3 -2.8 -2.3 -3.8 -2.0 -1.6 -2.5 -4.9 -1.6 -2.1 -1.9 -2.3 -2.4 -4.2 -4.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.22-1.26-1.42-1.25-0.98-1.19 73.01 74.33-1.32 73.27 74.43-1.16 0.16 9 3.86 3.75 3.54 3.97 3.99 4.11 69.36 3.65 69.30 3.97 0.32 12 -4.22-4.14-4.38-4.09-4.22-4.31 77.28-4.27 77.61-4.33 -0.06 13 -2.88-3.21-3.03-2.71-2.70-2.68 76.22-3.21 76.00-2.73 0.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.50 1.24 1.21 1.12 1.09 1.66 1.08 1.54 1.41 9 1.38 1.36 0.90 1.21 1.38 1.54 12 1.09 0.92 1.31 0.97 1.72 1.31 13 1.32 1.12 1.08 1.23 1.35 1.24 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 74.43)(1.54) + 73.27 0.93(F 9 - 69.30)(1.38) + 73.27 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 11 0.892 0.884 0.877 0.872 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.2 68.7 67.4 66.8 66.4 65.5 66.6 66.5 68.2 66.0 68.4 65.4 67.9 64.7 64.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 S- 10 -0.8 -0.6 -1.5 -1.8 -0.8 -0.7 -1.5 -2.0 -0.2 -0.2 -0.2 -1.0 -1.2 -2.6 -2.8 S- 9 4.5 4.4 3.7 3.5 4.5 4.1 4.0 3.4 4.8 5.0 5.1 4.1 3.7 2.6 3.1 S- 13 -2.5 -2.4 -2.9 -3.7 -2.5 -2.8 -2.7 -4.6 -1.4 -1.9 -2.1 -2.5 -2.7 -4.0 -4.8 S- 11 2.5 2.5 1.8 1.0 2.9 2.4 2.5 1.2 3.0 2.9 3.4 2.0 2.3 0.6 0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.30-1.42-1.49-1.39-1.01-1.17 66.87 68.22-1.35 66.73 67.92-1.19 0.16 9 3.93 3.77 3.63 4.10 4.12 4.05 63.15 3.72 62.70 4.03 0.31 13 -3.07-3.49-3.21-2.93-2.88-2.77 70.25-3.38 69.62-2.89 0.48 11 1.86 1.42 1.72 2.05 2.11 2.08 65.38 1.48 64.65 2.08 0.59 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.57 1.42 1.56 1.31 1.19 1.35 1.07 1.26 1.06 9 1.50 1.33 1.17 1.10 1.23 1.05 13 1.44 1.41 1.11 1.10 1.22 1.10 11 1.43 1.27 1.23 1.04 1.30 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.94(F 10 - 67.92)(1.26) + 66.73 0.94(F 9 - 62.70)(1.23) + 66.73 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 11 0.926 0.904 0.896 0.884 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.1 58.9 61.1 58.5 57.2 55.2 57.8 59.2 58.7 57.7 58.5 58.2 56.3 54.1 54.4 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 S- 9 4.4 4.9 3.6 3.7 4.4 4.1 4.4 4.0 5.2 4.8 4.8 4.0 4.3 3.0 3.0 S- 10 -1.4 -0.7 -2.0 -2.2 -1.3 -1.3 -1.9 -1.5 -0.5 -0.8 -1.6 -1.2 -1.9 -3.2 -3.5 S- 13 -2.9 -2.7 -3.9 -4.6 -2.7 -3.7 -3.3 -3.7 -1.7 -2.5 -3.0 -2.6 -3.5 -4.9 -5.1 S- 11 2.2 2.3 1.1 -0.1 2.7 1.5 2.5 2.0 2.7 2.6 2.6 2.0 2.2 0.0 0.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.06 4.04 3.81 4.08 4.25 4.15 57.69 53.73 3.96 57.58 53.41 4.17 0.21 10 -1.65-1.72-1.64-1.77-1.36-1.83 59.27-1.58 59.25-1.67 -0.09 13 -3.51-3.77-3.53-3.59-3.28-3.32 61.38-3.69 60.96-3.37 0.31 11 1.66 1.52 1.58 1.59 1.87 1.77 56.22 1.47 55.81 1.77 0.30 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.72 1.66 1.11 0.90 1.23 1.83 1.63 1.12 0.91 10 1.52 0.78 1.42 1.55 1.18 0.83 13 1.52 0.79 1.40 1.60 1.14 0.81 11 1.62 0.81 1.37 1.72 1.06 0.78 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.96(F 9 - 53.41)(1.12) + 57.58 0.95(F 10 - 59.25)(1.18) + 57.58 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 11 0.950 0.941 0.940 0.931 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.8 52.8 50.1 48.5 47.7 45.6 44.9 51.3 49.5 48.1 47.5 50.8 46.0 45.5 44.8 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 S- 9 4.6 5.1 4.3 4.0 4.2 4.4 5.6 4.5 5.1 5.3 4.6 4.4 4.9 2.8 2.6 S- 10 -1.9 -0.5 -2.4 -2.6 -1.3 -1.5 -1.6 -1.9 -1.2 -1.0 -1.9 -1.3 -1.6 -3.2 -3.7 S- 13 -4.0 -2.7 -4.7 -4.9 -3.1 -4.0 -4.4 -3.5 -2.9 -2.6 -3.3 -2.7 -3.7 -5.0 -5.1 S- 11 1.5 2.4 0.9 -0.2 1.7 1.7 2.2 2.1 2.4 2.8 1.9 1.8 2.1 -0.4 0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.27 4.41 4.08 4.13 4.49 4.24 47.59 43.22 4.38 47.99 43.56 4.42 0.05 10 -1.89-1.79-1.96-2.11-1.62-1.99 49.29-1.70 49.82-1.83 -0.14 13 -3.99-4.13-4.21-4.05-3.84-3.60 51.66-4.07 51.75-3.76 0.31 11 1.36 1.40 1.15 1.29 1.50 1.53 46.20 1.39 46.46 1.52 0.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.03 2.15 1.25 1.54 0.81 2.40 2.26 1.06 1.30 10 1.96 1.43 0.88 2.11 1.14 1.29 13 1.84 1.31 0.95 2.05 1.17 1.22 11 2.00 1.44 0.87 2.26 1.06 1.22 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 43.56)(1.06) + 47.99 0.97(F 10 - 49.82)(1.14) + 47.99 Station#1871 LYNCHBURG/MUNICIPAL , va 4512002 lat/lon 79.20 37.33 0M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 11 0.946 0.943 0.934 0.929 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.4 41.7 41.8 40.0 40.7 42.2 40.0 44.4 42.8 42.6 39.0 44.8 37.5 38.2 38.2 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 S- 10 -1.7 -0.9 -2.4 -2.5 -1.3 -1.2 -1.7 -1.6 -1.7 -1.7 -2.2 -1.6 -1.7 -3.5 -5.3 S- 9 5.2 5.9 5.1 4.1 4.3 4.1 5.7 4.9 5.7 4.6 5.3 4.9 4.9 3.1 0.9 S- 13 -4.8 -3.4 -4.7 -5.5 -3.6 -4.2 -4.8 -3.6 -3.6 -3.5 -4.2 -3.0 -4.3 -6.4 -6.6 S- 11 1.1 2.8 1.6 -0.9 1.3 1.0 1.9 1.4 2.0 1.3 1.5 2.0 1.0 -1.0 -1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.14-1.80-2.22-2.54-1.75-2.53 40.23 42.12-1.89 40.82 42.90-2.08 -0.19 9 4.57 4.89 4.50 4.40 4.73 4.20 35.43 4.80 36.24 4.58 -0.23 13 -4.77-4.86-4.98-5.05-4.36-4.51 45.11-4.88 45.23-4.41 0.47 11 0.86 1.06 0.59 0.74 1.14 0.75 39.26 0.97 39.78 1.04 0.06 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.44 2.36 1.68 1.90 0.89 2.23 1.95 1.14 1.29 9 2.64 2.20 0.77 2.10 1.06 1.38 13 2.24 1.95 0.86 1.65 1.35 1.56 11 2.43 2.14 0.79 1.87 1.19 1.52 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 42.90)(1.14) + 40.82 0.97(F 9 - 36.24)(1.06) + 40.82 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 30.87 32.40 38.32 48.00 58.00 66.31 69.87 68.81 63.55 52.34 41.61 33.65 1952 33.05 35.03 40.69 48.38 59.26 67.58 71.84 69.33 60.94 52.14 42.61 37.23 1953 34.61 36.83 41.50 49.94 59.10 67.54 70.91 69.73 63.48 54.07 44.05 35.12 1954 32.30 34.46 42.52 49.27 58.83 65.11 69.76 68.60 63.58 53.51 42.02 32.71 1955 30.41 33.54 41.52 50.81 58.87 67.04 71.50 71.30 64.01 53.10 41.36 32.12 1956 29.97 33.65 40.75 48.99 58.78 65.86 70.26 69.16 65.30 55.98 48.67 38.73 1957 36.71 35.97 44.64 52.78 62.62 68.77 71.25 70.01 62.52 53.90 43.82 36.21 1958 29.87 29.55 37.69 49.45 59.81 67.00 70.27 69.96 63.55 55.58 43.06 34.49 1959 30.61 35.20 44.11 53.76 63.40 69.11 72.40 71.80 66.65 55.85 45.63 37.67 1960 34.28 31.45 39.11 47.85 61.06 65.78 70.83 69.78 64.22 55.48 43.03 33.38 1961 29.34 34.43 41.43 48.61 57.03 65.73 70.90 71.13 65.70 56.63 44.22 35.39 1962 30.85 32.89 39.96 50.99 61.53 67.67 69.89 67.74 63.23 53.07 41.52 32.06 1963 27.51 33.09 41.34 52.58 60.80 67.51 70.69 68.58 64.41 56.23 43.89 34.49 1964 29.19 34.70 40.27 51.48 61.25 69.36 71.33 69.51 62.00 54.81 44.71 37.47 1965 32.63 33.16 39.78 50.43 60.56 68.24 70.52 70.69 63.91 54.35 43.73 34.65 1966 29.67 32.08 39.33 49.68 59.12 68.92 73.40 70.59 62.33 52.87 42.52 37.39 1967 32.26 35.34 40.81 49.35 59.27 65.32 70.04 67.19 60.90 50.72 41.92 33.43 1968 29.95 33.36 42.21 51.94 60.31 66.75 71.71 70.18 63.92 54.33 42.25 32.36 1969 27.17 29.12 38.54 49.49 60.99 67.24 70.10 68.27 61.75 51.75 39.56 29.82 1970 26.28 28.70 37.45 48.31 59.74 67.14 70.43 70.62 65.06 55.23 43.50 33.32 1971 29.30 29.80 37.92 46.52 57.92 65.42 69.63 68.36 63.87 54.78 46.19 37.67 1972 33.23 32.40 37.71 48.16 56.91 64.50 67.84 68.29 60.50 50.23 41.04 35.44 1973 32.24 34.59 40.41 49.45 58.22 65.91 71.06 69.51 63.94 55.09 44.21 37.77 1974 32.75 35.30 40.36 49.55 57.18 63.80 67.93 67.41 60.49 51.93 43.20 37.30 1975 33.37 33.58 37.49 47.39 58.00 66.65 69.78 67.11 62.04 54.09 44.71 34.91 1976 31.84 36.16 45.15 51.23 59.49 64.97 68.91 66.88 59.33 48.95 37.51 27.47 1977 25.38 31.26 43.85 54.15 61.13 67.88 70.94 70.91 62.81 53.25 41.35 32.18 1978 24.76 25.92 34.75 46.73 58.18 65.11 70.10 69.26 63.00 53.92 43.85 34.79 1979 26.55 28.95 37.00 50.10 57.68 64.76 68.01 67.42 61.19 53.54 44.37 36.54 1980 29.90 29.81 37.16 48.66 59.17 67.04 71.10 71.46 63.72 52.61 40.65 31.14 1981 28.50 29.80 40.50 48.98 60.36 66.01 69.69 67.22 59.94 51.17 40.51 31.16 1982 27.38 30.22 38.98 49.63 58.78 66.98 68.46 67.76 61.50 53.76 45.65 37.49 1983 33.25 33.59 39.54 48.20 57.73 66.82 72.30 71.40 64.30 54.00 41.10 31.69 1984 29.25 30.87 38.33 45.97 58.69 66.18 70.24 67.55 63.73 53.83 46.99 35.03 1985 31.59 31.74 42.57 52.77 61.01 66.70 69.34 69.24 63.45 56.20 43.93 35.31 1986 29.27 32.84 40.04 49.92 60.13 68.28 71.53 69.54 63.02 53.43 43.12 33.90 1987 30.53 33.20 39.95 50.08 60.08 69.56 73.41 71.50 62.11 52.92 43.01 35.03 1988 30.29 32.13 40.24 49.88 58.73 67.83 72.76 71.14 61.71 51.34 41.33 36.92 1989 32.93 34.93 39.57 48.29 58.87 66.61 70.41 68.52 62.97 54.03 39.73 33.96 1990 32.54 40.09 44.20 50.51 59.04 66.29 70.43 68.66 63.14 55.27 46.48 37.80 1991 34.30 36.13 43.56 53.90 63.42 71.03 73.47 71.61 64.75 54.17 44.68 36.98 1992 34.30 34.26 40.19 47.39 56.98 64.62 68.64 67.66 60.42 51.70 41.35 35.24 1993 30.59 31.82 37.06 48.68 60.02 68.95 72.74 71.36 63.48 52.92 41.65 31.69 1994 27.66 30.04 41.23 49.81 61.25 67.19 71.45 68.66 61.82 54.56 46.20 38.85 1995 32.27 33.43 39.25 49.67 58.28 66.74 71.50 70.10 64.17 52.18 40.27 30.35 1996 27.68 29.62 37.39 46.73 58.79 65.26 69.45 67.34 61.73 50.64 41.51 33.15 1997 32.80 34.45 40.09 46.35 55.29 64.23 69.50 68.37 62.16 51.89 41.71 33.48 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.920 0.919 0.910 0.910 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 33.3 29.3 31.6 29.3 30.5 30.3 32.9 32.5 34.3 34.3 30.6 27.7 32.3 27.7 32.8 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 S- 10 -7.4 -9.3 -8.7 -9.7 -7.8 -7.8 -7.7 -8.4 -9.2 -8.4 -9.8 -9.9 -9.2 -9.5 -9.0 S- 9 -2.0 -2.1 -1.3 -2.2 -1.9 -1.9 -1.6 -1.2 -2.0 -1.4 -3.3 -2.6 -1.9 -2.9 -2.6 S- 7 -3.0 -3.5 -3.2 -3.1 -2.6 -2.5 -2.1 -2.0 -3.1 -2.1 -3.8 -2.7 -3.5 -3.7 -3.9 S- 38 -4.8 -3.2 -2.0 -4.2 -4.5 -3.6 -3.7 -3.3 -3.4 -3.9 -4.9 -4.4 -3.9 -4.8 -4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -8.60-8.10-7.96-9.37-8.49-9.28 31.48 39.40-7.92 31.28 40.07-8.79 -0.88 9 -1.71-1.50-0.90-2.12-1.83-2.41 32.62-1.14 33.35-2.06 -0.92 7 -2.71-2.48-1.88-3.21-2.88-3.26 33.45-1.97 34.28-2.99 -1.02 38 -3.72-3.81-2.95-3.88-3.83-4.27 34.82-3.34 35.24-3.95 -0.62 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.61 2.48 2.35 2.49 0.94 2.10 1.82 1.15 1.22 9 2.89 2.99 0.78 1.85 1.13 1.45 7 2.52 2.68 0.87 2.00 1.05 1.20 38 3.07 3.13 0.75 2.04 1.03 1.37 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 40.07)(1.15) + 31.28 0.96(F 9 - 33.35)(1.13) + 31.28 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.881 0.877 0.876 0.873 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 33.6 30.9 31.7 32.8 33.2 32.1 34.9 40.1 36.1 34.3 31.8 30.0 33.4 29.6 34.5 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -8.2 -9.8 -9.2 -9.7 -7.0 -7.7 -8.6 -8.1 -8.8 -9.4 -9.8-10.7 -9.5 -9.8 -9.8 S- 9 -2.5 -3.0 -1.7 -3.0 -2.1 -1.8 -3.2 -1.9 -1.9 -2.8 -3.4 -3.1 -2.6 -3.2 -3.4 S- 7 -3.5 -3.4 -3.9 -3.4 -2.4 -2.5 -2.4 -2.0 -2.8 -2.8 -3.2 -2.2 -4.0 -4.1 -4.0 S- 38 -5.2 -5.0 -3.1 -5.8 -5.6 -3.8 -5.5 -4.2 -3.9 -5.4 -5.3 -4.9 -4.8 -5.1 -5.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -8.80-8.51-7.68-9.64-8.74-9.68 33.76 41.89-8.13 33.28 42.35-9.07 -0.94 9 -2.16-1.83-1.04-2.72-2.52-2.92 35.21-1.45 35.92-2.65 -1.19 7 -2.78-2.66-1.55-3.47-3.10-3.29 35.81-2.05 36.37-3.10 -1.05 38 -4.44-4.35-3.28-4.80-4.94-4.98 37.64-3.88 38.13-4.86 -0.97 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.59 2.45 1.76 2.14 0.82 2.52 2.25 1.12 1.37 9 2.79 2.46 0.72 2.36 1.07 1.49 7 2.26 1.94 0.91 2.33 1.08 1.19 38 3.03 2.71 0.65 2.54 0.99 1.53 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.94(F 10 - 42.35)(1.12) + 33.28 0.94(F 9 - 35.92)(1.07) + 33.28 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.851 0.835 0.817 0.815 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.5 38.3 42.6 40.0 40.0 40.2 39.6 44.2 43.6 40.2 37.1 41.2 39.3 37.4 40.1 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0 S- 7 -3.3 -3.7 -2.7 -3.1 -2.6 -2.4 -2.7 -2.3 -2.4 -2.5 -3.0 -1.8 -3.3 -3.9 -4.4 S- 10 -7.8 -9.3 -7.8 -9.5 -6.4 -7.3 -8.4 -8.1 -7.7 -8.9 -9.1 -9.0 -9.3 -9.0 -9.3 S- 9 -2.3 -3.1 -1.1 -4.1 -1.9 -1.7 -2.6 -2.0 -1.6 -3.0 -2.8 -2.3 -2.9 -2.5 -3.3 S- 8 1.3 1.9 3.3 1.3 1.1 3.1 2.9 2.8 2.5 2.2 1.8 4.4 2.6 1.6 1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -2.54-2.33-1.40-3.15-2.92-3.03 40.91 42.80-1.89 40.21 43.14-2.93 -1.03 10 -8.08-7.78-7.07-8.74-8.13-8.90 48.40-7.49 48.67-8.46 -0.97 9 -2.02-1.45-1.28-2.57-2.33-2.64 42.19-1.28 42.70-2.49 -1.20 8 2.73 2.85 3.64 2.48 2.28 2.30 37.55 3.36 37.97 2.25 -1.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.25 1.89 1.84 1.67 1.10 1.95 1.66 1.17 1.06 10 1.97 1.95 0.94 1.80 1.09 1.15 9 2.04 2.10 0.88 1.69 1.15 1.32 8 2.04 1.85 1.00 1.74 1.12 1.13 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.92(F 7 - 43.14)(1.17) + 40.21 0.91(F 10 - 48.67)(1.09) + 40.21 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 6 10 0.816 0.814 0.810 0.808 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.2 46.0 52.8 49.9 50.1 49.9 48.3 50.5 53.9 47.4 48.7 49.8 49.7 46.7 46.3 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 S- 9 -1.5 -2.3 -0.9 -2.8 -1.9 -1.1 -1.7 -1.6 -1.2 -2.6 -1.1 -0.7 -1.9 -2.5 -2.4 S- 7 -3.1 -3.2 -2.0 -3.8 -2.7 -2.0 -2.6 -2.4 -1.6 -2.6 -2.2 -2.1 -2.8 -3.3 -4.4 S- 6 -0.2 0.8 0.0 -2.0 -1.8 0.4 0.3 0.3 -0.6 -1.4 0.4 1.4 0.5 0.1 -0.9 S- 10 -7.2 -8.3 -6.4 -7.8 -5.9 -5.8 -6.9 -7.4 -6.0 -7.7 -7.0 -7.4 -7.6 -8.2 -8.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 -1.48-1.22-0.79-1.98-1.71-1.78 50.22 51.18-0.96 49.21 50.97-1.76 -0.80 7 -2.27-2.22-1.02-2.86-2.68-2.71 52.01-1.78 51.92-2.71 -0.93 6 0.24 0.54 1.08-0.18-0.27-0.09 49.44 0.78 49.40-0.19 -0.97 10 -6.87-7.00-5.78-7.31-6.94-7.52 56.76-6.54 56.44-7.23 -0.68 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.96 1.68 1.77 1.70 1.04 2.14 1.83 1.17 1.13 7 1.59 1.43 1.23 1.74 1.24 1.00 6 1.97 1.60 1.10 2.40 0.89 0.81 10 1.52 1.54 1.15 1.62 1.33 1.15 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.90(F 9 - 50.97)(1.17) + 49.21 0.90(F 7 - 51.92)(1.24) + 49.21 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 8 0.813 0.791 0.785 0.767 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.7 58.7 61.0 60.1 60.1 58.7 58.9 59.0 63.4 57.0 60.0 61.3 58.3 58.8 55.3 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 8 55.1 55.7 57.6 58.5 58.8 56.6 55.6 56.7 61.1 55.4 57.5 57.7 56.4 57.4 54.7 S- 7 -2.4 -2.2 -1.8 -3.0 -2.3 -2.2 -2.3 -2.2 -1.2 -2.0 -1.7 -1.8 -2.7 -2.5 -3.8 S- 9 -0.2 -0.8 -0.2 -1.6 -1.0 -0.6 0.4 -0.3 -0.3 -1.0 0.0 0.6 -1.5 -1.5 -0.9 S- 10 -5.4 -5.9 -5.7 -6.6 -5.3 -5.0 -5.7 -6.0 -4.5 -5.8 -5.4 -5.1 -6.7 -6.5 -6.4 S- 8 2.6 3.0 3.4 1.6 1.2 2.1 3.2 2.4 2.3 1.6 2.5 3.6 1.9 1.4 0.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -2.06-2.26-0.98-2.61-2.25-2.26 60.06 61.88-1.82 59.22 61.50-2.28 -0.46 9 -0.60-0.90 0.06-0.98-0.57-0.63 60.56-0.50 59.81-0.59 -0.08 10 -5.62-6.12-4.48-6.02-5.77-5.76 65.60-5.54 64.96-5.74 -0.20 8 2.38 2.08 3.26 1.95 2.49 2.01 57.52 2.54 56.97 2.25 -0.29 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.67 1.33 1.69 1.27 1.32 1.85 1.46 1.27 0.96 9 1.51 1.56 1.08 1.75 1.06 0.98 10 1.42 1.39 1.21 1.58 1.17 0.97 8 1.42 1.45 1.16 1.62 1.14 0.99 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.90(F 7 - 61.50)(1.27) + 59.22 0.89(F 9 - 59.81)(1.06) + 59.22 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 8 0.859 0.812 0.777 0.773 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.8 66.2 66.7 68.3 69.6 67.8 66.6 66.3 71.0 64.6 68.9 67.2 66.7 65.3 64.2 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7 cd 8 63.7 62.7 63.3 65.5 66.8 65.6 64.3 63.5 68.5 62.7 65.7 64.8 65.5 64.4 63.0 S- 7 -2.1 -2.3 -2.4 -2.8 -1.6 -2.2 -2.5 -2.6 -1.2 -2.2 -1.6 -2.6 -2.8 -2.8 -3.3 S- 9 0.7 0.0 0.1 -0.2 -0.1 0.7 0.2 -0.1 0.6 -0.5 0.7 0.5 -0.4 -1.3 -0.3 S- 6 0.1 0.5 0.6 -0.2 -0.3 -0.5 0.5 0.8 -0.3 -0.3 1.4 0.6 -0.7 -0.9 -0.5 S- 8 3.1 3.5 3.4 2.8 2.8 2.2 2.3 2.8 2.6 1.9 3.2 2.4 1.3 0.8 1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -2.33-2.54-1.47-2.90-2.39-2.35 67.24 69.39-2.15 67.09 69.42-2.33 -0.18 9 -0.12-0.57 0.64-0.59 0.01-0.09 67.31-0.07 67.04 0.04 0.11 6 -0.22-0.59 0.52-0.92 0.03-0.09 67.47-0.23 67.03 0.06 0.29 8 2.25 1.92 2.99 1.64 2.70 1.92 64.93 2.31 64.67 2.42 0.11 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.53 1.20 1.25 1.07 1.17 1.77 1.38 1.28 1.09 9 1.42 1.45 0.86 1.53 1.15 1.34 6 1.51 1.55 0.81 1.77 1.00 1.23 8 1.35 1.36 0.92 1.57 1.12 1.22 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.93(F 7 - 69.42)(1.28) + 67.09 0.90(F 9 - 67.04)(1.15) + 67.09 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 8 0.869 0.786 0.759 0.748 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.3 70.2 69.3 71.5 73.4 72.8 70.4 70.4 73.5 68.6 72.7 71.4 71.5 69.4 69.5 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8 S- 7 -2.0 -2.8 -2.7 -1.9 -1.2 -2.2 -2.8 -2.7 -1.2 -2.0 -1.6 -2.6 -2.9 -2.9 -2.6 S- 9 0.9 -0.2 0.2 0.5 0.7 0.7 -0.4 0.1 1.5 0.1 0.6 0.2 -0.9 -0.3 0.3 S- 6 -0.5 -0.5 0.4 0.7 1.0 -0.2 -0.3 0.6 0.5 0.7 0.8 0.4 -1.9 -1.0 0.0 S- 8 3.1 2.5 3.0 3.9 3.7 2.5 1.9 2.5 2.8 2.7 3.2 2.3 0.4 0.6 1.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -2.46-2.55-1.89-3.15-2.42-2.25 70.81 73.07-2.25 71.14 73.42-2.27 -0.02 9 0.16-0.13 0.96-0.40 0.16 0.23 70.51 0.30 70.87 0.27 -0.03 6 -0.18-0.59 0.54-0.77 0.01-0.06 70.99-0.18 71.09 0.05 0.23 8 2.28 2.01 2.83 1.71 2.79 1.96 68.42 2.40 68.69 2.46 0.06 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.38 1.05 0.73 0.92 0.80 1.51 1.18 1.28 1.60 9 1.17 1.06 0.69 1.25 1.21 1.75 6 1.34 1.30 0.56 1.57 0.96 1.71 8 1.27 1.27 0.58 1.43 1.06 1.84 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.93(F 7 - 73.42)(1.28) + 71.14 0.89(F 9 - 70.87)(1.21) + 71.14 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 10 0.858 0.823 0.822 0.799 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.4 67.6 69.2 69.5 71.5 71.1 68.5 68.7 71.6 67.7 71.4 68.7 70.1 67.3 68.4 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 S- 7 -1.9 -2.8 -2.4 -2.2 -1.3 -1.8 -2.9 -2.6 -1.0 -2.4 -1.7 -2.5 -3.0 -3.3 -2.6 S- 9 1.2 0.1 0.8 -0.3 0.6 0.4 -0.5 -0.4 1.4 -0.6 0.2 0.3 -0.3 -0.3 0.6 S- 6 -0.3 -0.1 0.4 -0.5 1.0 0.0 -0.4 0.1 1.2 0.3 1.3 0.4 -0.5 -1.0 0.8 S- 10 -4.0 -5.0 -4.2 -5.3 -4.8 -3.5 -5.5 -5.6 -3.8 -6.2 -5.0 -5.0 -5.0 -5.8 -5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -2.47-2.37-1.98-3.16-2.41-2.37 69.74 71.85-2.11 69.51 71.81-2.30 -0.19 9 0.13 0.04 0.87-0.55 0.13 0.17 69.36 0.38 69.30 0.21 -0.17 6 0.00-0.29 0.62-0.46-0.10 0.36 69.66 0.08 69.33 0.18 0.10 10 -4.95-4.97-4.09-5.78-4.85-5.13 74.33-4.59 74.43-4.92 -0.33 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.45 1.19 1.09 1.31 0.83 1.51 1.04 1.45 1.75 9 1.38 1.36 0.80 1.21 1.25 1.56 6 1.46 1.52 0.72 1.34 1.13 1.57 10 1.24 1.12 0.97 1.08 1.39 1.43 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.93(F 7 - 71.81)(1.45) + 69.51 0.91(F 9 - 69.30)(1.25) + 69.51 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 6 5 7 9 0.850 0.828 0.823 0.822 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.3 63.7 63.5 63.0 62.1 61.7 63.0 63.1 64.8 60.4 63.5 61.8 64.2 61.7 62.2 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 cd 5 60.8 60.4 59.9 59.0 57.5 58.1 59.1 59.6 60.5 56.9 58.5 58.3 61.1 59.8 58.0 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 6 -0.2 0.1 0.0 -0.6 0.9 0.5 1.0 0.7 1.0 0.4 1.6 0.3 0.0 -0.8 1.0 S- 5 3.5 3.4 3.5 4.0 4.6 3.6 3.9 3.6 4.2 3.5 5.0 3.5 3.1 1.9 4.1 S- 7 -2.1 -2.5 -2.5 -2.1 -1.6 -1.9 -2.4 -2.5 -1.0 -2.1 -1.5 -1.5 -2.7 -2.9 -2.1 S- 9 0.6 -0.6 -0.2 -0.2 0.2 0.3 0.4 0.0 1.3 -0.6 0.2 0.5 0.0 -0.4 1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 6 0.27 0.24 0.82-0.25 0.11 0.50 63.80 63.27 0.53 62.86 62.48 0.39 -0.15 5 3.53 3.42 3.82 3.17 3.64 3.62 60.06 3.74 59.16 3.70 -0.04 7 -2.19-1.91-1.63-3.07-2.29-1.96 65.38-1.58 64.95-2.08 -0.50 9 0.15 0.34 0.90-0.70-0.04 0.30 63.15 0.65 62.70 0.17 -0.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 6 1.55 1.60 1.37 1.42 0.96 1.14 1.29 0.89 0.92 5 1.59 1.54 0.89 1.21 0.95 1.06 7 1.41 1.37 1.00 1.22 0.94 0.94 9 1.50 1.33 1.03 1.10 1.04 1.01 Suggested regression eqns from two most closely related CDs ( 6 and 5): 0.92(F 6 - 62.48)(0.89) + 62.86 0.91(F 5 - 59.16)(0.95) + 62.86 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 6 5 7 8 0.860 0.859 0.852 0.851 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 54.0 53.8 56.2 53.4 52.9 51.3 54.0 55.3 54.2 51.7 52.9 54.6 52.2 50.6 51.9 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 S- 6 -0.2 0.7 0.4 -0.5 0.4 0.6 1.9 1.0 1.3 -0.1 1.3 0.6 1.2 -0.1 0.5 S- 5 3.3 3.8 4.5 4.0 4.1 3.1 4.7 4.0 4.3 3.4 4.7 3.6 3.4 2.5 3.5 S- 7 -2.5 -2.3 -2.4 -2.3 -1.8 -2.1 -1.8 -2.0 -1.5 -2.4 -2.2 -1.5 -3.0 -3.3 -2.8 S- 8 2.8 3.0 3.0 2.8 3.3 2.7 3.5 2.8 3.5 2.3 3.0 3.5 2.2 1.2 2.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 6 0.66 0.96 0.98 0.28 0.38 0.69 54.47 53.40 1.07 53.27 52.66 0.61 -0.46 5 3.64 3.57 3.71 3.50 3.80 3.63 50.65 3.82 49.48 3.79 -0.03 7 -2.15-1.77-1.62-2.79-2.24-2.40 55.94-1.47 55.53-2.25 -0.78 8 2.80 3.08 3.08 2.34 2.86 2.57 51.17 3.30 50.48 2.80 -0.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 6 1.71 1.73 1.40 1.18 1.19 1.48 1.48 1.00 0.84 5 1.65 1.17 1.20 1.17 1.26 1.05 7 1.45 1.11 1.27 1.28 1.16 0.92 8 1.60 1.18 1.19 1.16 1.27 1.07 Suggested regression eqns from two most closely related CDs ( 6 and 5): 0.93(F 6 - 52.66)(1.00) + 53.27 0.93(F 5 - 49.48)(1.26) + 53.27 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 7 6 0.899 0.893 0.891 0.885 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.1 47.0 43.9 43.1 43.0 41.3 39.7 46.5 44.7 41.3 41.7 46.2 40.3 41.5 41.7 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7 S- 9 -1.1 -0.7 -1.9 -1.4 -0.5 0.1 0.4 -0.2 0.2 -1.5 -1.2 -0.1 -0.8 -1.1 -0.5 S- 38 -3.2 -2.4 -3.5 -3.0 -2.4 -2.4 -1.6 -1.7 -1.9 -3.4 -2.5 -2.5 -2.3 -3.6 -2.7 S- 7 -3.6 -2.0 -2.9 -2.7 -2.0 -2.2 -1.8 -2.5 -1.8 -3.0 -3.0 -1.6 -3.2 -3.2 -3.5 S- 6 0.7 1.8 1.6 0.6 0.5 1.4 2.6 1.5 1.7 -0.5 0.2 0.9 1.1 -0.1 0.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 -0.40 0.34-0.13-0.87-0.69-0.72 43.60 43.22 0.38 42.87 43.56-0.69 -1.07 38 -2.47-1.84-2.22-2.93-2.75-2.71 45.35-1.76 45.48-2.61 -0.85 7 -2.31-1.76-1.94-2.74-2.51-2.74 45.16-1.57 45.46-2.59 -1.02 6 1.08 1.60 1.10 1.02 1.00 0.48 41.97 1.63 41.94 0.93 -0.69 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.14 2.15 1.81 1.54 1.18 2.23 2.26 0.99 0.84 38 2.17 1.48 1.22 2.20 1.01 0.83 7 1.92 1.48 1.22 1.99 1.12 0.92 6 2.22 1.61 1.13 2.18 1.02 0.91 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.95(F 9 - 43.56)(0.99) + 42.87 0.94(F 38 - 45.48)(1.01) + 42.87 Station#1872 MOUNT WEATHER , va 4585102 lat/lon 77.88 39.07 10M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 11 0.914 0.911 0.900 0.898 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 31.7 35.0 35.3 33.9 35.0 36.9 34.0 37.8 37.0 35.2 31.7 38.8 30.4 33.2 33.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 S- 9 -1.5 -0.8 -1.4 -2.0 -1.4 -1.1 -0.4 -1.7 -0.2 -2.8 -2.0 -1.0 -2.3 -2.0 -3.8 S- 10 -8.4 -7.5 -8.9 -8.6 -7.0 -6.5 -7.8 -8.2 -7.6 -9.0 -9.5 -7.5 -8.8 -8.6-10.0 S- 38 -2.7 -2.2 -2.7 -3.7 -3.6 -3.7 -2.5 -3.2 -2.1 -4.2 -3.2 -2.7 -3.9 -3.9 -6.0 S- 11 -5.6 -3.8 -4.8 -6.9 -4.4 -4.2 -4.2 -5.2 -3.9 -6.0 -5.8 -3.9 -6.2 -6.1 -6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 -1.09-0.51-0.63-1.28-1.30-2.00 35.02 35.43-0.41 34.63 36.24-1.62 -1.21 10 -7.80-7.20-7.35-8.21-7.78-8.73 42.12-7.10 42.90-8.27 -1.17 38 -2.96-2.66-2.51-2.92-3.24-3.70 37.37-2.35 37.97-3.35 -1.00 11 -4.79-4.34-4.54-4.93-4.90-5.45 39.26-4.23 39.78-5.16 -0.93 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.54 2.64 2.02 2.20 0.92 2.31 2.10 1.10 1.20 10 2.36 1.90 1.06 1.95 1.19 1.11 38 2.70 2.22 0.91 2.24 1.03 1.13 11 2.43 2.14 0.94 1.87 1.24 1.31 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.96(F 9 - 36.24)(1.10) + 34.63 0.95(F 10 - 42.90)(1.19) + 34.63 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 43.81 45.12 49.48 56.45 65.21 72.18 76.36 75.51 70.72 61.42 53.04 46.71 1952 44.93 45.50 50.21 57.94 68.20 75.39 79.08 76.90 69.21 60.34 50.78 46.77 1953 45.09 47.84 52.10 60.41 68.02 75.00 76.93 76.26 70.63 62.09 53.36 46.20 1954 44.60 45.66 52.15 57.79 66.74 72.45 77.15 76.56 72.06 62.79 51.99 43.15 1955 40.27 44.05 51.55 60.05 66.57 73.57 77.75 77.85 71.47 61.74 50.25 41.75 1956 40.17 43.71 50.22 56.30 65.35 72.71 77.12 75.65 70.51 61.76 55.58 47.56 1957 45.50 44.19 51.88 59.54 69.33 74.75 77.32 76.36 69.46 62.19 52.88 45.86 1958 40.25 39.18 46.10 55.98 65.42 73.40 77.14 76.78 69.93 62.54 51.33 44.03 1959 40.04 44.23 51.19 59.74 68.77 74.92 78.16 77.24 72.53 63.13 53.53 45.78 1960 42.64 40.74 48.04 56.96 69.11 73.80 77.73 76.88 71.50 62.41 50.28 41.25 1961 38.17 43.90 50.89 57.38 63.77 72.14 76.91 77.85 71.12 62.97 51.71 44.41 1962 40.41 41.19 47.09 56.00 65.93 72.16 74.86 73.45 68.93 60.23 49.57 41.26 1963 36.66 42.24 50.12 59.39 66.00 71.58 75.67 73.54 67.85 59.60 49.03 43.02 1964 39.07 43.96 48.30 57.04 65.36 72.68 75.38 74.17 67.58 60.98 52.90 46.81 1965 42.41 41.67 46.68 56.18 65.66 73.04 75.53 75.80 69.85 61.35 51.35 43.54 1966 39.33 40.84 47.16 55.32 63.20 71.05 74.84 74.28 67.96 59.84 50.35 45.80 1967 42.40 44.56 48.67 55.58 63.42 69.53 74.24 72.72 66.80 57.04 49.58 41.51 1968 37.68 39.72 46.53 56.54 64.82 72.46 77.85 76.72 71.67 62.44 52.40 44.13 1969 39.89 41.02 48.22 57.24 68.06 74.51 77.48 75.54 69.81 60.81 50.72 41.18 1970 37.94 39.27 47.01 56.26 66.33 73.04 76.57 76.50 72.06 63.32 54.12 45.65 1971 43.33 43.29 49.21 55.92 65.63 72.69 76.31 75.41 71.87 64.14 57.18 50.32 1972 47.33 46.24 49.57 56.28 63.44 70.51 74.67 75.11 68.91 60.83 53.31 47.01 1973 43.22 44.26 50.36 59.18 67.39 73.97 77.87 77.25 72.49 64.21 54.64 49.39 1974 46.14 48.50 52.62 60.19 66.77 72.61 76.19 75.71 69.09 61.13 52.67 48.39 1975 45.76 46.25 48.52 56.15 66.02 74.59 78.39 76.85 71.73 63.76 54.05 45.78 1976 43.83 47.32 55.11 60.54 68.00 73.43 76.64 75.09 68.18 58.20 48.35 38.73 1977 37.20 41.76 52.95 61.58 68.13 74.61 78.91 79.57 72.54 63.84 52.91 45.01 1978 37.87 38.75 45.57 56.27 65.63 71.90 76.90 76.62 71.45 63.28 53.96 46.76 1979 39.51 40.82 47.13 57.92 65.04 71.39 75.38 76.18 70.54 63.16 53.85 47.08 1980 40.07 40.61 46.72 57.61 66.75 74.16 78.56 79.30 72.41 62.11 50.87 41.53 1981 39.21 40.27 49.96 57.14 68.11 74.31 77.71 75.24 68.42 60.29 50.38 42.25 1982 39.35 42.06 48.72 57.73 65.91 73.75 75.75 74.66 68.48 61.50 54.43 47.68 1983 43.30 44.08 49.35 57.49 64.80 72.98 77.45 77.39 71.46 62.69 52.29 43.13 1984 41.13 42.42 49.17 56.20 66.49 73.48 77.06 75.20 71.90 62.46 55.94 45.16 1985 42.09 42.40 51.65 60.85 68.35 73.74 76.56 76.29 72.14 66.51 55.73 46.75 1986 40.80 43.79 49.90 58.22 66.95 75.22 78.28 77.07 71.43 64.22 54.99 46.31 1987 41.09 42.03 47.10 56.78 66.60 75.82 79.63 78.75 70.08 61.66 52.26 45.77 1988 41.90 43.10 49.55 57.24 65.27 73.12 78.19 77.18 69.36 60.48 51.13 47.24 1989 43.79 46.43 50.19 57.38 66.82 74.36 78.43 76.93 71.37 63.23 50.16 45.00 1990 43.86 50.21 54.08 59.50 66.92 74.21 78.03 76.73 71.78 64.14 57.15 49.60 1991 46.68 47.43 53.57 62.38 70.23 77.01 79.24 77.96 71.19 62.28 54.06 47.58 1992 45.06 45.46 50.67 56.41 64.15 72.03 76.50 76.99 69.55 62.30 52.70 47.48 1993 42.73 43.48 47.88 57.51 67.27 75.98 79.48 79.02 71.53 63.10 52.03 43.69 1994 40.33 43.87 53.49 60.39 69.65 75.75 80.02 77.69 70.61 63.91 56.49 50.79 1995 45.67 46.22 51.40 59.99 68.02 75.64 79.74 78.57 72.58 62.04 51.29 42.25 1996 39.95 41.65 48.38 56.29 66.37 72.66 75.90 74.98 69.62 60.20 51.70 44.79 1997 44.60 46.23 50.76 56.68 63.52 71.68 75.84 75.81 70.10 61.44 51.94 44.48 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.959 0.927 0.918 0.915 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.3 41.1 42.1 40.8 41.1 41.9 43.8 43.9 46.7 45.1 42.7 40.3 45.7 40.0 44.6 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3 S- 10 2.6 2.6 1.8 1.8 2.7 3.8 3.1 2.9 3.2 2.3 2.4 2.8 4.2 2.7 2.8 S- 9 8.1 9.8 9.2 9.3 8.7 9.7 9.3 10.2 10.4 9.3 8.8 10.0 11.5 9.3 9.2 S- 7 7.1 8.4 7.2 8.5 7.9 9.1 8.8 9.3 9.3 8.7 8.4 10.0 9.9 8.6 7.9 S- 12 -3.1 -4.1 -4.4 -5.1 -3.9 -2.4 -3.8 -3.8 -3.0 -3.6 -4.2 -4.5 -1.5 -4.6 -3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.57 2.36 1.96 3.12 2.61 2.92 41.60 39.40 2.21 42.87 40.07 2.79 0.59 9 9.46 8.96 9.0110.37 9.26 9.79 32.62 8.98 33.35 9.52 0.54 7 8.46 7.98 8.03 9.29 8.22 8.94 33.45 8.15 34.28 8.59 0.44 12 -3.98-4.00-4.62-3.65-3.94-3.57 45.96-4.36 46.58-3.72 0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.75 2.48 2.66 2.49 1.07 1.99 1.82 1.09 1.02 9 2.89 2.99 0.89 1.85 1.07 1.21 7 2.52 2.68 0.99 2.00 0.99 1.00 12 2.62 2.72 0.98 1.56 1.27 1.30 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(1.09) + 42.87 0.96(F 9 - 33.35)(1.07) + 42.87 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.964 0.928 0.919 0.916 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.1 42.4 42.4 43.8 42.0 43.1 46.4 50.2 47.4 45.5 43.5 43.9 46.2 41.7 46.2 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 S- 10 2.3 1.8 1.5 1.3 1.8 3.3 2.9 2.0 2.5 1.8 1.9 3.1 3.3 2.2 2.0 S- 12 -3.0 -5.3 -5.1 -5.7 -4.4 -2.7 -4.4 -4.3 -3.7 -4.3 -4.9 -5.2 -2.6 -5.2 -5.7 S- 9 8.0 8.6 9.0 7.9 6.7 9.1 8.3 8.2 9.4 8.4 8.2 10.7 10.2 8.8 8.3 S- 13 -0.3 -2.7 -2.3 -2.9 -1.9 0.0 -1.2 -1.2 -0.6 -1.7 -1.3 -1.4 0.2 -1.7 -2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.96 1.70 1.47 2.37 1.99 2.40 43.55 41.89 1.65 44.59 42.35 2.24 0.58 12 -4.74-4.85-5.12-4.53-4.60-4.52 48.54-5.00 49.03-4.44 0.55 9 8.60 8.38 8.11 9.28 8.22 9.17 35.21 8.33 35.92 8.67 0.33 13 -1.84-2.19-2.28-1.46-1.80-1.32 45.76-2.22 46.03-1.44 0.78 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.61 2.45 2.14 2.14 1.00 2.29 2.25 1.02 1.02 12 2.68 2.35 0.91 2.27 1.01 1.11 9 2.79 2.46 0.87 2.36 0.97 1.12 13 2.57 2.47 0.86 2.21 1.04 1.20 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.98(F 10 - 42.35)(1.02) + 44.59 0.96(F 12 - 49.03)(1.01) + 44.59 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.945 0.868 0.864 0.861 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 49.3 49.2 51.7 49.9 47.1 49.5 50.2 54.1 53.6 50.7 47.9 53.5 51.4 48.4 50.8 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 S- 10 2.0 1.5 1.2 0.4 0.8 2.0 2.2 1.8 2.3 1.6 1.7 3.3 2.8 2.0 1.4 S- 9 7.5 7.7 8.0 5.8 5.2 7.6 8.0 7.9 8.4 7.5 8.0 9.9 9.2 8.5 7.4 S- 12 -3.0 -4.9 -4.3 -6.6 -4.7 -3.6 -4.5 -4.1 -3.8 -4.1 -3.9 -3.3 -3.6 -4.3 -5.8 S- 7 6.5 7.2 6.4 6.8 4.5 7.0 7.9 7.6 7.6 8.0 7.8 10.5 8.8 7.1 6.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.51 1.42 0.89 1.85 1.44 2.15 49.73 48.40 1.34 50.48 48.67 1.80 0.47 9 7.57 7.76 6.68 8.02 7.25 8.42 42.19 7.54 42.70 7.78 0.23 12 -4.60-4.39-5.43-4.29-4.62-4.11 54.41-4.68 54.77-4.30 0.38 7 7.05 6.88 6.55 7.45 6.66 8.02 42.80 6.93 43.14 7.34 0.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.25 1.97 1.97 1.95 1.01 2.01 1.80 1.12 1.11 9 2.04 2.10 0.93 1.69 1.19 1.28 12 1.96 1.90 1.04 2.02 1.00 0.96 7 1.89 1.67 1.18 1.66 1.21 1.03 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 48.67)(1.12) + 50.48 0.93(F 9 - 42.70)(1.19) + 50.48 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 13 0.886 0.837 0.789 0.745 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.5 56.2 60.8 58.2 56.8 57.2 57.4 59.5 62.4 56.4 57.5 60.4 60.0 56.3 56.7 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 2.0 1.9 1.7 0.5 0.8 1.5 2.2 1.6 2.5 1.3 1.9 3.1 2.7 1.4 1.7 S- 7 6.2 7.0 6.1 4.5 4.0 5.4 6.5 6.6 6.9 6.5 6.6 8.5 7.6 6.3 5.9 S- 12 -2.6 -4.4 -2.8 -4.7 -3.7 -3.4 -3.5 -3.8 -2.8 -3.5 -2.6 -2.3 -3.6 -4.5 -5.0 S- 13 -0.6 -1.8 -1.0 -2.9 -2.6 -1.7 -1.2 -1.5 -0.4 -1.5 -0.4 0.0 -1.5 -2.2 -2.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.37 1.20 0.62 1.66 1.49 2.07 57.81 56.76 1.05 58.22 56.44 1.78 0.74 7 5.97 5.98 5.39 6.11 5.75 6.88 52.01 5.80 51.92 6.30 0.49 12 -3.93-3.87-4.80-3.66-3.72-3.49 61.92-4.11 61.78-3.56 0.55 13 -2.03-2.14-3.08-1.65-1.81-1.21 60.19-2.38 59.67-1.45 0.94 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.77 1.52 1.55 1.54 1.01 1.86 1.62 1.15 1.14 7 1.59 1.43 1.08 1.74 1.07 0.99 12 1.46 1.46 1.06 1.58 1.18 1.11 13 1.53 1.59 0.97 1.57 1.18 1.22 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 56.44)(1.15) + 58.22 0.91(F 7 - 51.92)(1.07) + 58.22 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 4 12 0.887 0.879 0.812 0.794 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.8 66.5 68.3 66.9 66.6 65.3 66.8 66.9 70.2 64.2 67.3 69.7 68.0 66.4 63.5 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 S- 7 4.6 5.6 5.5 3.9 4.3 4.3 5.6 5.7 5.6 5.2 5.5 6.6 7.0 5.1 4.4 S- 10 1.6 1.9 1.6 0.2 1.2 1.5 2.2 1.9 2.3 1.4 1.9 3.3 3.0 1.1 1.8 S- 4 8.7 10.3 11.7 9.2 9.0 8.9 10.4 11.1 10.2 9.2 10.0 12.1 12.4 10.1 8.6 S- 12 -2.2 -2.3 -2.4 -4.1 -2.5 -2.6 -2.1 -2.9 -1.7 -2.8 -1.6 -0.2 -2.2 -3.4 -2.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 5.00 5.04 4.22 5.28 5.03 5.62 66.63 61.88 4.75 66.76 61.50 5.26 0.51 10 1.44 1.18 0.71 1.87 1.51 2.12 65.60 1.03 64.96 1.80 0.77 4 9.9710.29 9.28 9.9910.0310.37 56.71 9.92 56.6310.13 0.20 12 -2.80-2.89-3.60-2.49-2.70-2.09 69.77-3.14 69.13-2.37 0.77 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.70 1.33 1.62 1.27 1.27 1.80 1.46 1.23 0.97 10 1.42 1.39 1.16 1.58 1.14 0.98 4 1.27 1.27 1.27 1.24 1.45 1.14 12 1.33 1.16 1.39 1.56 1.15 0.83 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.94(F 7 - 61.50)(1.23) + 66.76 0.94(F 10 - 64.96)(1.14) + 66.76 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 7 9 0.867 0.815 0.791 0.717 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.0 73.5 73.7 75.2 75.8 73.1 74.4 74.2 77.0 72.0 76.0 75.8 75.6 72.7 71.7 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 S- 10 1.7 2.1 1.9 1.2 1.8 1.8 2.5 2.1 2.2 2.0 2.2 3.4 3.4 1.0 2.0 S- 12 -1.8 -1.3 -1.9 -2.4 -0.6 -1.0 -0.9 -2.1 -0.5 -2.1 -1.2 0.7 -0.2 -3.4 -1.6 S- 7 4.0 5.0 4.7 4.1 4.7 3.1 5.3 5.3 4.8 5.2 5.5 5.9 6.1 4.6 4.2 S- 9 6.8 7.3 7.1 6.7 6.2 6.0 8.0 7.8 6.6 6.9 7.7 9.1 8.5 6.1 7.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.64 1.28 0.94 2.01 1.88 2.32 73.32 72.15 1.17 74.25 72.15 2.10 0.93 12 -1.73-2.00-2.33-1.45-1.56-1.17 75.47-2.15 75.59-1.35 0.80 7 4.32 4.26 3.36 4.48 4.58 5.18 69.39 3.92 69.42 4.82 0.90 9 6.53 6.23 5.47 6.80 6.99 7.44 67.31 6.01 67.04 7.20 1.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.53 1.30 1.17 1.15 1.02 1.55 1.40 1.11 1.09 12 1.23 1.04 1.13 1.25 1.24 1.10 7 1.20 1.07 1.09 1.38 1.12 1.02 9 1.42 1.45 0.81 1.53 1.01 1.25 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.93(F 10 - 72.15)(1.11) + 74.25 0.90(F 12 - 75.59)(1.24) + 74.25 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.882 0.781 0.777 0.722 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 77.4 77.1 76.6 78.3 79.6 78.2 78.4 78.0 79.2 76.5 79.5 80.0 79.7 75.9 75.8 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 S- 10 1.3 1.9 2.2 1.6 2.1 2.1 2.5 2.2 2.5 2.5 2.3 3.8 3.2 1.1 1.8 S- 12 -1.3 -0.9 -1.5 -1.8 -0.2 -0.1 -0.2 -1.4 0.1 -1.4 -0.6 1.5 1.0 -2.0 -1.0 S- 9 6.0 6.6 7.4 7.3 6.9 6.1 7.7 7.7 7.3 8.0 7.3 8.8 7.4 6.1 6.7 S- 7 3.2 4.0 4.6 4.9 5.0 3.2 5.2 4.9 4.6 5.8 5.2 6.0 5.3 3.6 3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.81 1.50 1.22 2.07 1.98 2.46 76.87 75.44 1.43 78.02 75.81 2.22 0.78 12 -0.99-1.22-1.50-0.62-1.05-0.35 78.24-1.37 78.68-0.65 0.71 9 6.74 6.46 5.99 7.05 7.02 7.36 70.51 6.36 70.87 7.15 0.79 7 4.11 4.04 3.15 4.30 4.43 4.89 73.07 3.80 73.42 4.61 0.80 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.42 1.07 1.10 0.93 1.18 1.38 1.08 1.28 1.08 12 1.03 0.92 1.19 0.88 1.57 1.32 9 1.17 1.06 1.04 1.25 1.10 1.06 7 1.05 0.92 1.20 1.18 1.16 0.97 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 75.81)(1.28) + 78.02 0.88(F 12 - 78.68)(1.57) + 78.02 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.889 0.833 0.818 0.770 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 77.4 75.2 76.3 77.1 78.8 77.2 76.9 76.7 78.0 77.0 79.0 77.7 78.6 75.0 75.8 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 S- 10 2.0 2.6 2.8 2.2 2.5 2.6 2.9 2.4 2.6 3.1 2.7 4.1 3.4 1.8 2.3 S- 12 -0.9 -0.6 -0.3 -1.6 -0.1 -0.5 -0.2 -1.5 -0.1 -0.8 -0.3 1.3 0.9 -1.8 -1.1 S- 9 7.2 7.7 7.8 7.3 7.9 6.5 7.9 7.7 7.8 8.7 7.9 9.3 8.2 7.3 8.0 S- 7 4.1 4.8 4.7 5.3 5.9 4.2 5.6 5.5 5.3 6.9 6.0 6.5 5.5 4.3 4.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.13 1.78 1.52 2.27 2.45 2.86 76.05 74.33 1.72 77.10 74.43 2.67 0.96 12 -0.87-1.10-1.45-0.57-0.79-0.26 77.28-1.23 77.61-0.50 0.73 9 7.21 6.79 6.47 7.49 7.42 8.16 69.36 6.69 69.30 7.80 1.11 7 4.62 4.38 3.62 4.89 4.88 5.62 71.85 4.20 71.81 5.29 1.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.49 1.24 1.35 1.12 1.21 1.16 1.08 1.08 0.89 12 1.09 0.92 1.46 0.97 1.20 0.82 9 1.38 1.36 1.00 1.21 0.97 0.97 7 1.19 1.31 1.03 1.04 1.12 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 74.43)(1.08) + 77.10 0.91(F 12 - 77.61)(1.20) + 77.10 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.895 0.857 0.843 0.829 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.5 71.9 72.1 71.4 70.1 69.4 71.4 71.8 71.2 69.6 71.5 70.6 72.6 69.6 70.1 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 S- 10 2.5 2.6 3.3 2.9 2.8 3.2 3.3 3.2 2.8 3.4 2.9 4.3 3.5 2.3 3.0 S- 12 -1.3 -0.7 -1.0 -1.3 -1.0 -1.1 -0.5 -1.6 -0.7 -1.0 -1.0 0.5 -0.1 -1.4 -1.1 S- 9 7.8 7.6 8.5 8.2 8.2 8.0 8.8 8.6 7.7 8.6 8.2 9.3 8.4 7.5 8.9 S- 7 5.1 5.6 6.2 6.3 6.4 5.8 6.0 6.2 5.5 7.1 6.6 7.3 5.7 5.0 5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.50 2.17 1.82 2.64 2.88 3.16 70.22 68.22 2.00 70.98 67.92 3.06 1.06 12 -1.20-1.44-1.82-0.81-1.10-0.69 71.85-1.62 71.86-0.88 0.74 9 7.73 7.36 6.94 8.13 8.01 8.39 63.15 7.07 62.70 8.28 1.21 7 5.39 5.11 4.41 5.76 5.76 6.14 65.38 4.84 64.95 6.03 1.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.51 1.42 1.40 1.31 1.06 0.99 1.07 0.92 0.87 12 1.30 1.13 1.23 1.01 0.98 0.79 9 1.50 1.33 1.05 1.10 0.90 0.86 7 1.41 1.37 1.02 1.22 0.81 0.79 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.95(F 10 - 67.92)(0.92) + 70.98 0.93(F 12 - 71.86)(0.98) + 70.98 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 12 10 13 9 0.926 0.916 0.863 0.849 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 62.7 62.5 66.5 64.2 61.7 60.5 63.2 64.1 62.3 62.3 63.1 63.9 62.0 60.2 61.4 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 S- 12 -1.1 -1.0 -2.0 -2.1 -1.2 -1.7 -1.3 -1.5 -0.8 -1.3 -1.8 -0.1 -0.9 -2.0 -1.4 S- 10 3.2 2.9 3.4 3.5 3.2 4.0 3.6 3.4 3.1 3.7 3.0 4.5 3.8 2.9 3.5 S- 13 1.8 0.9 1.6 1.2 1.8 1.6 2.1 1.3 1.9 2.1 1.6 3.1 2.3 1.2 1.9 S- 9 9.1 8.5 9.0 9.4 9.0 9.4 9.8 9.0 8.8 9.3 9.4 9.7 10.0 9.1 10.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 12 -1.58-1.70-2.14-1.29-1.47-1.18 61.70 63.61-1.91 62.71 64.06-1.35 0.56 10 2.89 2.66 2.04 3.12 3.29 3.50 59.27 2.43 59.25 3.46 1.03 13 1.03 0.60 0.15 1.31 1.38 2.01 61.38 0.32 60.96 1.75 1.43 9 8.60 8.42 7.48 8.98 8.90 9.48 53.73 7.97 53.41 9.30 1.33 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 12 1.67 1.57 1.02 0.77 1.32 1.54 1.65 0.93 0.70 10 1.52 0.78 1.30 1.55 1.00 0.77 13 1.52 0.79 1.28 1.60 0.96 0.75 9 1.66 0.90 1.13 1.63 0.94 0.83 Suggested regression eqns from two most closely related CDs ( 12 and 10): 0.96(F 12 - 64.06)(0.93) + 62.71 0.96(F 10 - 59.25)(1.00) + 62.71 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.946 0.929 0.900 0.896 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 52.3 55.9 55.7 55.0 52.3 51.1 50.2 57.2 54.1 52.7 52.0 56.5 51.3 51.7 51.9 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 S- 10 3.6 2.7 3.2 3.9 3.3 4.0 3.6 4.0 3.3 3.7 2.6 4.4 3.7 3.0 3.4 S- 12 -2.1 -1.9 -3.0 -2.5 -1.9 -1.7 -2.4 -1.3 -1.2 -2.0 -2.6 -0.6 -1.9 -2.5 -1.9 S- 9 10.1 8.3 9.9 10.5 8.8 9.9 10.8 10.4 9.6 9.9 9.1 10.1 10.2 9.1 9.7 S- 13 1.6 0.4 0.9 1.7 1.5 1.5 0.8 2.4 1.7 2.0 1.3 3.0 1.7 1.3 2.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 3.04 2.85 2.22 3.36 3.46 3.45 51.84 49.29 2.55 53.32 49.82 3.50 0.96 12 -2.16-2.23-2.85-1.68-2.11-1.81 54.38-2.54 55.30-1.97 0.57 9 9.20 9.05 8.26 9.60 9.57 9.68 43.22 8.62 43.56 9.76 1.14 13 0.94 0.51-0.03 1.42 1.24 1.84 51.66 0.18 51.75 1.57 1.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.10 1.96 1.68 1.43 1.18 2.14 2.11 1.01 0.86 12 1.96 1.49 1.13 2.02 1.06 0.94 9 2.15 1.54 1.09 2.26 0.95 0.87 13 1.84 1.31 1.28 2.05 1.04 0.81 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.97(F 10 - 49.82)(1.01) + 53.32 0.96(F 12 - 55.30)(1.06) + 53.32 Station#1873 NORFOLK/INTL ARPT , va 4613901 lat/lon 76.20 36.88 0M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.963 0.940 0.939 0.926 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.1 45.2 46.8 46.3 45.8 47.2 45.0 49.6 47.6 47.5 43.7 50.8 42.3 44.8 44.5 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 S- 10 3.0 2.6 2.5 3.8 3.7 3.8 3.3 3.6 3.0 3.2 2.5 4.4 3.1 3.0 1.0 S- 9 9.9 9.4 10.1 10.4 9.3 9.2 10.7 10.1 10.4 9.5 10.0 10.9 9.6 9.6 7.2 S- 12 -3.5 -2.8 -3.4 -3.5 -2.0 -2.6 -3.2 -2.1 -1.6 -3.2 -3.8 -0.8 -3.5 -3.6 -4.5 S- 7 8.1 7.4 8.5 9.4 8.7 8.4 9.2 9.3 8.5 8.4 8.7 8.9 8.4 7.8 4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 2.87 2.57 2.34 3.27 3.28 2.89 44.54 42.12 2.42 46.00 42.90 3.10 0.69 9 9.58 9.27 9.0610.20 9.76 9.61 35.43 9.11 36.24 9.76 0.65 12 -3.08-3.37-3.44-2.72-2.87-2.99 48.06-3.52 48.94-2.93 0.59 7 8.06 7.70 7.64 8.59 8.41 7.89 36.91 7.63 37.72 8.28 0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.62 2.36 2.08 1.90 1.10 2.25 1.95 1.16 1.05 9 2.64 2.20 0.95 2.10 1.07 1.13 12 2.40 2.02 1.03 1.66 1.35 1.31 7 2.43 1.96 1.06 2.15 1.05 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.90)(1.16) + 46.00 0.97(F 9 - 36.24)(1.07) + 46.00 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 37.44 40.19 45.09 52.76 61.03 68.18 71.42 70.24 65.00 54.27 44.77 38.92 1952 39.48 41.50 46.43 53.92 64.39 71.49 74.90 71.68 62.95 52.59 43.26 39.66 1953 38.16 41.38 45.11 54.34 63.10 70.46 72.96 71.04 65.55 55.77 45.27 38.41 1954 37.17 39.21 46.61 51.90 61.54 67.04 72.43 71.92 65.69 55.26 43.71 35.69 1955 33.96 38.30 46.45 55.51 61.46 67.45 70.80 72.29 65.42 54.14 42.29 34.35 1956 34.69 38.04 44.46 51.53 59.81 67.14 69.74 68.11 63.88 54.62 48.69 40.49 1957 40.69 40.47 47.97 54.75 63.48 68.57 70.35 69.58 62.61 54.57 44.38 37.46 1958 31.63 33.10 40.95 52.70 61.83 68.72 71.60 70.22 63.20 54.96 43.79 36.08 1959 33.10 36.59 44.22 53.55 62.71 69.27 71.97 71.29 65.73 54.65 44.86 37.90 1960 35.43 32.97 39.21 47.46 60.49 66.22 71.13 70.61 65.48 55.43 42.58 33.21 1961 32.23 38.51 45.08 50.87 57.19 64.50 68.77 69.13 63.28 55.41 45.12 38.14 1962 35.84 37.42 43.53 53.00 62.33 69.52 70.26 68.76 63.59 54.52 44.04 34.49 1963 29.66 34.38 43.49 54.22 61.83 66.96 69.90 68.27 64.06 55.80 43.28 34.14 1964 29.61 35.18 43.73 54.52 63.45 68.55 70.22 68.79 61.98 54.85 45.57 40.30 1965 35.70 37.46 45.37 56.09 64.79 69.26 70.89 70.65 63.91 55.45 45.21 36.24 1966 32.81 35.50 44.35 52.72 60.75 68.16 71.53 70.14 63.30 55.17 45.54 40.21 1967 36.13 41.45 48.30 56.65 62.79 66.91 70.12 67.87 62.99 53.63 47.10 40.14 1968 36.09 38.05 45.08 55.84 63.07 68.66 72.69 71.10 65.32 55.58 44.92 37.32 1969 34.71 36.76 45.01 53.70 64.20 70.25 73.14 71.52 64.93 54.57 43.98 34.42 1970 32.73 36.74 46.75 56.05 63.84 69.56 72.52 73.22 67.94 58.36 48.12 39.56 1971 37.13 37.69 44.47 51.79 61.80 67.85 71.95 71.36 68.26 59.26 51.04 42.96 1972 40.00 40.02 45.59 54.38 61.41 67.25 71.07 72.02 66.14 56.82 48.26 41.61 1973 38.91 42.28 48.28 55.40 61.47 68.54 73.27 72.85 67.90 59.62 48.84 44.45 1974 41.73 46.35 49.38 57.28 62.41 68.40 71.00 70.37 63.48 54.76 45.81 41.32 1975 40.20 42.47 47.40 55.50 64.00 70.42 73.41 72.35 67.40 58.45 49.17 40.36 1976 39.21 43.16 50.58 55.61 61.96 67.67 70.88 69.36 62.56 52.28 42.14 32.61 1977 31.24 36.67 48.84 58.69 65.09 70.60 73.04 72.84 65.34 57.32 46.46 37.91 1978 31.78 35.25 45.02 55.33 63.48 69.19 72.88 72.65 65.54 57.47 47.06 39.31 1979 34.02 37.23 45.78 55.27 62.27 67.86 71.15 70.71 65.04 56.59 46.79 41.30 1980 36.73 38.91 44.46 54.64 63.16 70.22 74.50 74.68 66.71 55.88 44.41 37.04 1981 34.53 36.70 46.18 55.05 66.06 71.79 74.92 72.08 65.03 56.11 45.52 37.65 1982 36.06 41.00 48.00 56.25 62.56 69.45 70.74 69.18 63.53 56.42 50.23 43.56 1983 40.63 41.60 46.51 53.20 60.27 68.04 73.30 72.44 66.58 56.93 46.74 38.64 1984 36.90 40.07 47.14 53.21 62.49 68.52 73.08 70.36 67.25 57.08 50.44 38.27 1985 35.66 36.60 46.58 55.19 62.02 67.05 69.88 69.13 66.00 60.80 49.94 40.01 1986 35.51 40.36 49.29 56.75 65.73 71.93 74.49 72.70 66.43 59.46 49.39 41.51 1987 37.69 40.58 45.07 53.72 61.00 69.45 72.60 71.67 63.88 54.99 46.49 40.12 1988 36.53 38.98 46.89 55.03 62.80 69.38 74.15 73.27 64.74 55.44 45.39 42.21 1989 39.18 43.77 48.54 55.16 61.52 68.04 72.64 71.70 66.06 56.85 43.40 38.16 1990 37.20 44.27 47.94 54.20 61.83 69.10 73.06 71.87 65.81 57.02 48.22 41.34 1991 38.30 40.12 47.16 56.99 65.70 72.01 73.43 71.54 64.90 54.87 45.90 38.08 1992 36.47 36.13 41.72 48.39 57.23 64.79 68.72 68.90 61.48 52.66 41.62 37.25 1993 33.86 35.60 39.55 49.20 59.42 68.75 72.96 72.59 64.78 54.32 44.11 34.95 1994 33.38 35.64 44.86 51.48 61.17 67.69 71.86 69.32 62.82 55.18 47.21 41.04 1995 36.74 39.53 46.03 54.83 61.88 68.40 73.35 72.05 64.31 50.72 39.09 32.82 1996 32.05 33.97 39.70 49.62 61.10 67.76 71.03 69.38 63.52 52.82 43.92 37.68 1997 37.94 41.92 47.18 52.48 58.21 66.24 70.77 70.30 64.13 53.67 43.61 36.30 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 11 38 10 0.843 0.839 0.830 0.819 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.6 36.9 35.7 35.5 37.7 36.5 39.2 37.2 38.3 36.5 33.9 33.4 36.7 32.0 37.9 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 S- 9 5.4 5.5 2.8 4.0 5.3 4.4 4.7 3.5 2.0 0.7 0.0 3.1 2.6 1.4 2.5 S- 11 2.0 1.4 -0.9 -0.3 0.6 0.7 0.5 -0.9 -2.1 -3.8 -4.6 -2.0 -1.7 -3.1 -1.6 S- 38 2.6 4.4 2.0 2.0 2.7 2.6 2.5 1.4 0.6 -1.7 -1.6 1.3 0.6 -0.5 0.6 S- 10 -0.1 -1.6 -4.6 -3.5 -0.7 -1.6 -1.5 -3.7 -5.2 -6.3 -6.5 -4.2 -4.7 -5.2 -3.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.50 2.40 3.17 5.04 4.60 1.75 34.99 32.62 2.37 36.54 33.35 3.19 0.82 11 -1.00-2.06-1.64 0.49 0.38-2.69 37.27-2.29 37.59-1.05 1.24 38 1.49 0.10 1.12 3.28 2.60-0.11 34.82 0.17 35.24 1.30 1.13 10 -3.39-4.20-3.89-2.21-2.05-5.12 39.40-4.41 40.07-3.54 0.87 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.92 2.89 3.22 2.99 1.08 2.16 1.85 1.17 1.08 11 2.77 3.08 1.05 1.75 1.23 1.18 38 3.07 3.13 1.03 2.04 1.06 1.03 10 2.48 2.49 1.29 1.82 1.18 0.92 Suggested regression eqns from two most closely related CDs ( 9 and 11): 0.92(F 9 - 33.35)(1.17) + 36.54 0.92(F 11 - 37.59)(1.23) + 36.54 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 38 50 0.805 0.796 0.791 0.785 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.6 40.1 36.6 40.4 40.6 39.0 43.8 44.3 40.1 36.1 35.6 35.6 39.5 34.0 41.9 cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2 S- 11 2.0 1.3 -1.0 0.0 0.7 1.2 0.7 -1.2 -2.2 -5.6 -4.4 -3.0 -1.2 -3.5 -1.4 S- 9 5.6 6.2 3.1 4.5 5.2 5.0 5.6 2.3 2.1 -0.9 0.4 2.5 3.5 1.2 4.0 S- 38 2.8 4.2 1.8 1.7 1.8 3.1 3.4 0.0 0.1 -3.5 -1.5 0.7 1.3 -0.8 2.0 S- 50 -0.3 -0.5 -2.7 -3.3 -2.7 -1.4 -1.0 -3.7 -4.2 -8.0 -6.1 -5.3 -3.9 -5.8 -3.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.97-2.22-1.41 0.75 0.45-3.04 37.65 40.04-2.39 39.28 40.46-1.18 1.21 9 3.76 2.54 3.42 5.50 4.94 1.82 35.21 2.44 35.92 3.35 0.92 38 1.48 0.01 1.18 3.43 2.51-0.25 37.64 0.01 38.13 1.14 1.14 50 -3.22-4.72-3.49-1.31-1.97-5.23 42.38-4.74 42.76-3.48 1.26 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 3.01 2.71 2.68 2.61 1.03 2.99 2.27 1.31 1.28 9 2.79 2.46 1.09 2.36 1.26 1.16 38 3.03 2.71 0.99 2.54 1.18 1.19 50 3.00 2.97 0.90 2.32 1.29 1.43 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.90(F 11 - 40.46)(1.31) + 39.28 0.89(F 9 - 35.92)(1.26) + 39.28 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 56 13 38 0.702 0.676 0.670 0.663 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.5 47.1 46.6 49.3 45.1 46.9 48.5 47.9 47.2 41.7 39.5 44.9 46.0 39.7 47.2 cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2 cd 56 51.9 53.3 55.4 56.4 52.8 53.5 55.2 57.1 57.0 54.6 50.9 56.2 55.1 51.5 56.2 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 11 1.6 1.6 -0.6 0.9 -0.6 1.2 1.2 -1.8 -1.8 -5.4 -4.2 -3.0 -0.9 -3.9 -1.0 S- 56 -5.4 -6.2 -8.8 -7.1 -7.7 -6.6 -6.7 -9.2 -9.9-12.9-11.4-11.3 -9.1-11.8 -9.0 S- 13 -3.6 -4.2 -7.1 -5.0 -4.9 -4.2 -3.7 -7.5 -7.7-10.8 -9.5 -9.1 -6.5-10.4 -6.5 S- 38 2.0 3.1 0.7 2.3 -0.4 3.0 3.7 -0.4 -0.8 -4.5 -2.5 -0.7 0.9 -1.9 1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.74-2.07-0.82 1.01 0.43-2.89 44.51 46.55-2.04 45.61 46.72-1.11 0.93 56 -8.50*****-8.33-6.72-7.30***** 54.36-9.85 54.48-8.87 0.98 13 -6.34-7.83-6.14-4.74-5.06-8.63 52.13-7.61 52.32-6.71 0.91 38 0.86-0.51 0.91 2.56 1.88-1.13 44.93-0.41 45.19 0.42 0.83 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.49 1.92 2.15 2.12 1.01 2.90 1.76 1.65 1.62 56 1.98 2.07 1.03 1.96 1.48 1.43 13 1.96 2.04 1.05 1.92 1.51 1.44 38 2.21 2.29 0.93 1.81 1.60 1.71 Suggested regression eqns from two most closely related CDs ( 11 and 56): 0.84(F 11 - 46.72)(1.65) + 45.61 0.82(F 56 - 54.48)(1.48) + 45.61 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 38 56 9 0.732 0.701 0.693 0.690 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.2 53.2 55.2 56.8 53.7 55.0 55.2 54.2 57.0 48.4 49.2 51.5 54.8 49.6 52.5 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 56 59.3 59.9 63.0 62.6 61.4 60.9 61.2 62.2 64.4 59.9 58.8 62.0 63.5 59.9 61.1 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 S- 11 0.7 1.1 -0.8 1.3 -1.3 1.3 1.4 -1.2 -0.7 -4.4 -3.1 -2.5 -0.8 -3.2 -0.6 S- 38 1.1 2.8 -1.3 1.4 -1.8 1.8 2.2 0.0 -1.0 -4.4 -2.6 -1.3 0.5 -1.9 1.3 S- 56 -6.1 -6.7 -7.8 -5.9 -7.7 -5.9 -6.1 -8.0 -7.4-11.5 -9.6-10.5 -8.7-10.3 -8.7 S- 9 3.5 4.9 1.5 4.1 1.8 4.1 5.2 2.0 1.9 -1.6 -0.6 0.9 3.2 0.4 3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.43-1.73-0.27 1.08 0.45-2.19 53.14 54.68-1.54 53.30 54.16-0.86 0.68 38 0.19-1.08 0.42 1.56 0.96-1.36 54.02-0.88 53.51-0.22 0.67 56 -7.54-9.08-7.06-6.02-6.62-9.52 61.83-8.69 61.35-8.06 0.64 9 2.90 1.70 3.29 4.22 3.64 1.14 51.18 1.96 50.97 2.33 0.37 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.31 1.54 2.07 1.66 1.24 2.55 1.58 1.62 1.30 38 1.82 1.74 1.19 2.05 1.24 1.04 56 1.54 1.59 1.30 1.57 1.62 1.25 9 1.68 1.70 1.21 1.83 1.39 1.15 Suggested regression eqns from two most closely related CDs ( 11 and 38): 0.86(F 11 - 54.16)(1.62) + 53.30 0.84(F 38 - 53.51)(1.24) + 53.30 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 66 39 11 38 0.772 0.753 0.738 0.736 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.3 62.5 62.0 65.7 61.0 62.8 61.5 61.8 65.7 57.2 59.4 61.2 61.9 61.1 58.2 cd 66 70.7 72.0 73.5 73.8 72.1 71.9 72.5 73.2 75.3 70.8 71.3 73.3 73.3 72.6 70.3 cd 39 61.5 64.3 65.9 67.0 66.9 64.9 63.1 63.1 68.5 62.9 63.7 65.0 64.8 64.4 60.7 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 S- 66-10.4 -9.5-11.5 -8.1-11.1 -9.1-11.0-11.4 -9.6-13.6-11.8-12.2-11.4-11.5-12.1 S- 39 -1.3 -1.8 -3.9 -1.3 -5.9 -2.1 -1.6 -1.3 -2.8 -5.7 -4.3 -3.8 -3.0 -3.3 -2.5 S- 11 0.3 1.1 -1.1 1.5 -2.3 1.4 1.0 -0.3 0.6 -2.9 -2.5 -1.6 -0.5 -1.4 -0.4 S- 38 0.0 0.7 -1.8 1.1 -3.3 0.7 0.7 0.2 -1.1 -3.3 -2.3 -1.7 -0.6 -1.3 -0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 66 ***************-9.80********** 61.96 73.24***** 61.49 72.44***** 0.33 39 -2.60-3.38-2.59-1.70-2.00-3.62 65.33-3.37 64.46-2.97 0.41 11 -0.27-1.53-0.22 0.96 0.36-1.23 63.26-1.30 61.96-0.47 0.83 38 -0.58-1.83-0.49 0.56 0.10-1.50 63.55-1.58 62.31-0.82 0.76 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 66 1.93 1.10 1.85 0.90 2.04 2.22 1.31 1.70 0.83 39 1.70 1.66 1.11 2.01 1.11 1.00 11 1.51 1.45 1.28 1.64 1.35 1.06 38 1.68 1.64 1.13 1.97 1.13 1.00 Suggested regression eqns from two most closely related CDs ( 66 and 39): 0.88(F 66 - 72.44)(1.70) + 61.49 0.87(F 39 - 64.46)(1.11) + 61.49 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 39 38 9 11 0.756 0.744 0.739 0.734 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.0 68.5 67.1 71.9 69.4 69.4 68.0 69.1 72.0 64.8 68.8 67.7 68.4 67.8 66.2 cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 S- 39 -3.4 -2.5 -4.6 -2.1 -5.1 -3.0 -2.0 -1.4 -2.9 -5.1 -4.1 -3.4 -3.3 -4.0 -3.2 S- 38 -1.1 0.0 -2.2 0.2 -2.8 -0.6 -0.1 0.4 -1.0 -2.5 -1.6 -1.3 -1.3 -1.7 -0.8 S- 9 1.9 2.4 0.5 3.4 -0.2 2.2 1.7 2.7 1.6 -0.3 0.5 1.0 1.2 1.2 1.7 S- 11 0.0 0.9 -1.5 1.1 -1.7 1.4 0.8 0.5 1.0 -2.0 -1.6 -0.3 -0.3 -1.4 -0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 39 -3.22-3.95-3.32-2.62-2.66-3.72 68.22 72.21-3.99 68.48 71.83-3.35 0.64 38 -1.09-2.24-1.19-0.19-0.47-1.46 70.33-2.11 69.57-1.10 1.01 9 1.67 0.87 1.49 2.61 2.16 1.00 67.31 0.91 67.04 1.44 0.52 11 -0.16-1.31-0.23 0.91 0.35-0.68 69.39-1.17 68.69-0.21 0.96 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 39 1.63 1.51 1.69 1.60 1.05 1.80 1.61 1.12 1.07 38 1.56 1.61 1.05 1.65 1.09 1.04 9 1.42 1.45 1.16 1.53 1.18 1.02 11 1.47 1.43 1.18 1.45 1.24 1.05 Suggested regression eqns from two most closely related CDs ( 39 and 38): 0.87(F 39 - 71.83)(1.12) + 68.48 0.86(F 38 - 69.57)(1.09) + 68.48 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 39 38 11 9 0.727 0.708 0.705 0.698 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.3 73.1 69.9 74.5 72.6 74.2 72.6 73.1 73.4 68.7 73.0 71.9 73.3 71.0 70.8 cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 S- 39 -4.3 -2.5 -4.5 -1.6 -4.4 -2.8 -1.8 -1.6 -3.4 -4.0 -4.0 -3.3 -3.7 -3.5 -3.2 S- 38 -1.9 -0.2 -2.1 0.4 -2.2 -0.7 -0.2 0.5 -1.0 -1.6 -1.3 -1.6 -1.9 -1.3 -1.1 S- 11 0.5 1.3 -1.3 0.9 -1.1 1.6 1.1 0.9 0.8 -1.4 -0.9 -0.2 0.3 -0.5 0.0 S- 9 1.9 2.6 0.8 3.5 -0.1 2.1 1.9 2.8 1.5 0.2 0.8 0.6 1.0 1.3 1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 39 -3.43-4.45-3.59-2.85-2.73-3.59 71.16 75.64-4.48 72.35 75.60-3.24 1.24 38 -1.32-2.53-1.58-0.53-0.57-1.41 73.63-2.47 73.43-1.08 1.40 11 -0.10-1.27-0.35 0.87 0.49-0.27 72.39-1.24 72.21 0.14 1.38 9 1.50 0.71 1.06 2.38 2.19 0.99 70.51 0.65 70.87 1.48 0.84 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 39 1.54 1.46 1.45 1.50 0.97 1.55 1.40 1.11 1.15 38 1.33 1.30 1.12 1.39 1.12 1.00 11 1.21 1.17 1.24 1.06 1.46 1.18 9 1.17 1.06 1.37 1.25 1.24 0.91 Suggested regression eqns from two most closely related CDs ( 39 and 38): 0.85(F 39 - 75.60)(1.11) + 72.35 0.84(F 38 - 73.43)(1.12) + 72.35 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 39 9 38 11 0.751 0.750 0.743 0.736 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.4 70.4 69.1 72.7 71.7 73.3 71.7 71.9 71.5 68.9 72.6 69.3 72.1 69.4 70.3 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 S- 39 -4.5 -2.1 -3.9 -2.4 -3.4 -1.9 -1.1 -1.7 -3.3 -3.0 -2.2 -2.8 -3.0 -2.9 -2.7 S- 9 2.3 2.9 0.6 2.9 0.8 2.5 2.6 2.8 1.3 0.6 1.4 1.0 1.7 1.7 2.5 S- 38 -1.9 0.0 -1.8 -0.2 -1.1 -0.1 0.3 0.4 -0.9 -0.9 -0.2 -1.1 -1.2 -1.0 -0.4 S- 11 0.6 1.2 -0.6 0.5 -0.3 1.8 1.5 0.8 0.1 -1.2 -0.2 -0.1 0.2 -0.3 0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 39 -2.90-4.04-3.10-1.97-2.53-2.84 70.17 74.18-4.00 71.15 73.87-2.72 1.28 9 1.76 0.89 1.36 2.70 2.32 1.46 69.36 0.81 69.30 1.85 1.03 38 -1.01-2.35-1.29-0.08-0.48-0.82 72.45-2.27 71.83-0.69 1.59 11 0.02-1.16-0.23 0.99 0.66-0.21 71.32-1.15 70.88 0.27 1.42 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 39 1.56 1.60 1.30 1.40 0.93 1.41 1.45 0.97 1.04 9 1.38 1.36 0.96 1.21 1.17 1.21 38 1.54 1.41 0.92 1.33 1.05 1.14 11 1.34 1.14 1.14 1.11 1.27 1.11 Suggested regression eqns from two most closely related CDs ( 39 and 9): 0.87(F 39 - 73.87)(0.97) + 71.15 0.87(F 9 - 69.30)(1.17) + 71.15 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 11 0.753 0.737 0.730 0.725 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.6 67.3 66.0 66.4 63.9 64.7 66.1 65.8 64.9 61.5 64.8 62.8 64.3 63.5 64.1 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 S- 10 -2.4 -2.0 -2.8 -2.1 -3.4 -1.4 -2.1 -2.8 -3.5 -4.7 -3.9 -3.5 -4.8 -3.8 -2.9 S- 12 -6.2 -5.3 -7.1 -6.3 -7.2 -5.7 -5.8 -7.5 -7.0 -9.1 -7.7 -7.3 -8.4 -7.5 -7.1 S- 9 2.9 2.9 2.3 3.2 2.0 3.4 3.4 2.7 1.4 0.5 1.5 1.5 0.2 1.4 2.9 S- 11 0.8 1.0 0.4 0.6 0.3 1.6 1.9 0.5 -0.3 -1.7 -0.2 -0.6 -1.2 -0.6 0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -3.16-4.08-3.41-2.44-2.23-3.87 64.16 68.22-4.07 64.85 67.92-3.07 1.00 12 -6.86-7.69-7.05-5.90-6.21-7.72 71.85-7.69 71.86-7.02 0.67 9 2.07 1.11 1.71 3.05 2.90 1.36 63.15 1.00 62.70 2.15 1.15 11 0.00-1.24-0.21 1.00 0.89-0.62 65.38-1.23 64.65 0.20 1.43 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.60 1.42 1.20 1.31 0.91 1.50 1.07 1.41 1.55 12 1.30 1.13 1.06 1.01 1.49 1.41 9 1.50 1.33 0.90 1.10 1.37 1.52 11 1.43 1.27 0.95 1.04 1.45 1.53 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.87(F 10 - 67.92)(1.41) + 64.85 0.86(F 12 - 71.86)(1.49) + 64.85 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 56 11 50 0.772 0.756 0.755 0.749 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.9 57.1 60.8 59.5 55.0 55.4 56.8 57.0 54.9 52.7 54.3 55.2 50.7 52.8 53.7 cd 38 56.9 56.4 59.6 57.3 54.9 53.8 55.4 57.2 55.7 54.7 54.3 56.5 53.6 53.6 54.0 cd 56 61.9 63.3 66.7 65.5 61.5 61.7 62.6 64.5 62.2 61.6 63.0 63.0 60.9 61.0 61.4 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 cd 50 59.2 59.6 62.1 61.0 57.7 57.3 58.3 60.4 58.6 57.8 57.3 59.8 56.4 57.0 57.1 S- 38 0.0 0.7 1.2 2.1 0.1 1.6 1.4 -0.2 -0.8 -2.0 0.0 -1.4 -2.9 -0.7 -0.4 S- 56 -5.0 -6.2 -5.9 -6.0 -6.6 -6.2 -5.8 -7.5 -7.3 -9.0 -8.7 -7.8-10.2 -8.2 -7.7 S- 11 1.1 0.5 0.8 0.9 0.5 1.8 1.6 -0.2 -1.1 -2.5 -1.6 -1.1 -3.4 -1.2 -0.5 S- 50 -2.2 -2.5 -1.3 -1.5 -2.8 -1.9 -1.4 -3.4 -3.8 -5.1 -3.0 -4.6 -5.7 -4.1 -3.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -0.18-1.48-0.34 1.00 0.81-1.18 54.82 56.19-1.38 55.52 55.61-0.09 1.28 56 -6.96-8.24-6.65-5.87-6.07-8.42 62.79-7.97 62.73-7.21 0.76 11 -0.24-1.52-0.26 0.87 0.91-1.62 56.22-1.40 55.81-0.29 1.11 50 -3.03-4.26-3.19-1.77-2.06-4.24 59.07-4.25 58.63-3.11 1.14 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.99 1.76 0.78 1.01 0.77 2.53 1.67 1.52 1.96 56 1.53 0.75 1.04 1.63 1.55 1.49 11 1.62 0.81 0.96 1.72 1.47 1.53 50 1.71 1.04 0.75 1.60 1.58 2.10 Suggested regression eqns from two most closely related CDs ( 38 and 56): 0.88(F 38 - 55.61)(1.52) + 55.52 0.87(F 56 - 62.73)(1.55) + 55.52 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 56 13 9 0.815 0.811 0.800 0.795 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.7 50.4 49.9 49.4 46.5 45.4 43.4 48.2 45.9 41.6 44.1 47.2 39.1 43.9 43.6 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 S- 11 1.4 0.0 0.7 0.7 0.5 1.4 0.7 -0.9 -1.3 -3.7 -1.5 -1.7 -4.7 -1.9 -1.1 S- 56 -5.6 -7.0 -6.9 -6.7 -7.1 -7.3 -8.1 -8.0 -8.4-10.8 -8.7 -8.5-12.5 -8.9 -8.5 S- 13 -4.0 -5.1 -4.9 -3.9 -4.3 -4.2 -5.9 -6.6 -6.5 -9.0 -6.6 -6.3-10.5 -6.5 -6.3 S- 9 4.6 2.8 4.1 4.9 3.0 4.2 4.0 1.5 1.5 -1.2 1.2 0.9 -2.0 1.3 1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.59-1.91-0.55 0.58 0.71-2.28 44.45 46.20-1.75 45.70 46.46-0.77 0.98 56 -7.83-9.20-7.57-6.58-6.84-9.47 53.39-8.93 53.89-8.20 0.74 13 -5.94-7.43-5.91-4.76-4.63-7.41 51.66-7.21 51.75-6.05 1.16 9 2.32 1.11 2.37 3.42 3.70 0.43 43.22 1.24 43.56 2.13 0.90 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.54 2.00 1.49 1.44 1.03 3.06 2.26 1.35 1.31 56 1.82 1.22 1.23 1.96 1.56 1.27 13 1.84 1.31 1.13 2.05 1.49 1.31 9 2.15 1.54 0.97 2.26 1.36 1.40 Suggested regression eqns from two most closely related CDs ( 11 and 56): 0.90(F 11 - 46.46)(1.35) + 45.70 0.90(F 56 - 53.89)(1.56) + 45.70 Station#1874 PENNINGTON GAP , va 4662603 lat/lon 83.05 36.75 37M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 56 66 9 0.832 0.813 0.813 0.810 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.6 38.3 40.0 41.5 40.1 42.2 38.2 41.3 38.1 37.3 35.0 41.0 32.8 37.7 36.3 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0 cd 66 52.1 54.2 55.7 57.0 54.5 57.3 53.8 57.2 54.1 56.8 52.7 56.5 52.1 54.9 54.4 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 11 1.4 -0.6 -0.1 0.7 0.7 1.1 0.0 -1.7 -2.8 -4.0 -2.6 -1.8 -3.7 -1.6 -3.4 S- 56 -6.3 -8.8 -8.7 -7.3 -7.5 -7.4 -9.1 -8.5-10.0-11.1-10.4 -9.0-11.7-10.0-10.7 S- 66-13.5-16.0-15.7-15.5-14.3-15.1-15.6-15.8-16.0-19.6-17.7-15.4-19.3-17.2-18.1 S- 9 5.4 2.5 3.3 5.6 3.7 4.2 3.8 1.8 0.9 -0.8 1.3 1.2 0.2 2.5 -1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.95-2.26-1.09 0.44 0.42-2.82 37.03 39.26-2.23 38.56 39.78-1.23 1.00 56 -8.72*****-8.58-7.27-7.57***** 47.11***** 47.66-9.10 0.98 66 ****************************** 53.96***** 54.89***** 0.60 9 2.75 1.58 2.83 4.09 4.02 0.62 35.43 1.60 36.24 2.31 0.71 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.83 2.43 2.27 2.14 1.06 2.51 1.87 1.34 1.27 56 2.30 2.03 1.12 1.64 1.53 1.37 66 2.38 2.04 1.11 1.74 1.44 1.30 9 2.64 2.20 1.03 2.10 1.19 1.16 Suggested regression eqns from two most closely related CDs ( 11 and 56): 0.91(F 11 - 39.78)(1.34) + 38.56 0.90(F 56 - 47.66)(1.53) + 38.56 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.52 41.52 47.16 55.45 64.47 71.58 74.99 73.81 68.75 58.19 48.67 41.78 1952 40.89 42.23 47.36 55.06 65.86 73.17 76.80 74.02 66.09 57.30 47.04 42.31 1953 40.34 43.75 48.82 58.20 67.08 74.29 76.37 75.20 69.52 59.80 49.79 41.91 1954 40.44 42.36 50.09 56.14 65.47 71.30 76.30 76.19 71.18 60.48 48.01 38.61 1955 36.49 40.57 48.82 58.05 65.16 72.37 75.66 75.42 68.00 57.10 45.26 37.02 1956 36.22 40.23 46.96 54.39 63.62 70.89 74.28 72.59 66.82 57.65 49.84 41.07 1957 39.60 40.39 49.33 57.56 67.03 73.02 75.73 74.57 66.44 57.52 47.62 40.95 1958 35.21 35.30 42.93 53.75 63.45 70.69 74.09 73.38 66.44 58.53 46.79 39.35 1959 35.92 40.42 47.65 56.74 65.76 72.36 75.63 74.37 68.56 57.39 47.09 39.53 1960 36.75 34.85 42.10 51.00 63.96 69.51 74.16 73.23 67.16 57.46 44.33 34.86 1961 31.69 37.76 45.01 52.37 60.10 68.59 73.37 74.11 68.20 59.77 47.48 38.76 1962 33.83 35.98 43.49 54.64 64.45 70.45 72.21 70.06 65.37 55.35 44.59 35.07 1963 30.62 36.06 45.20 56.10 63.96 69.95 73.73 71.61 66.38 57.61 45.49 37.17 1964 32.66 38.20 44.17 54.54 63.91 71.82 74.32 72.45 64.42 56.84 47.19 40.54 1965 35.48 36.34 42.71 53.88 63.45 71.24 73.13 73.25 66.03 57.00 46.68 38.31 1966 33.83 36.06 43.05 52.36 61.12 69.98 74.24 72.45 64.80 55.54 45.02 39.73 1967 34.76 37.91 44.06 52.61 61.84 67.83 72.75 70.14 63.46 53.30 45.06 36.82 1968 33.52 36.64 45.35 54.59 62.62 69.37 74.85 73.45 67.39 57.89 46.79 37.58 1969 33.49 35.83 44.65 54.09 64.65 71.06 74.08 72.08 65.28 55.67 44.44 34.75 1970 31.67 34.10 43.29 53.24 64.12 71.18 74.19 73.67 68.10 58.97 47.67 37.84 1971 34.10 35.38 43.28 51.73 62.49 69.57 73.39 72.22 68.25 59.41 50.90 42.35 1972 38.29 38.43 43.93 53.45 61.15 68.17 71.69 71.97 64.83 54.93 46.02 40.08 1973 37.57 40.11 46.34 54.82 63.24 70.46 75.22 74.03 68.15 59.02 47.84 42.07 1974 37.85 41.10 46.12 55.19 62.43 68.75 72.52 71.83 64.65 55.77 46.86 40.99 1975 37.78 38.47 43.14 52.28 62.53 70.42 74.02 71.74 66.97 58.52 48.89 39.04 1976 36.66 41.03 50.02 55.85 63.70 69.54 73.60 71.65 63.74 52.71 41.22 31.77 1977 30.06 36.26 48.19 58.28 65.05 71.87 75.17 75.08 67.06 57.49 45.69 36.82 1978 30.21 32.24 41.08 52.23 62.87 69.24 74.35 73.43 66.99 57.72 47.77 40.20 1979 32.68 34.88 42.31 54.63 62.13 68.90 72.57 72.06 65.39 57.37 48.03 41.05 1980 34.67 35.40 42.51 53.69 63.63 70.87 74.96 75.24 67.74 56.70 44.69 36.04 1981 34.21 36.35 46.26 53.92 64.77 70.62 74.02 71.35 63.69 55.24 44.41 35.68 1982 32.43 35.88 44.46 54.38 63.24 71.13 72.73 71.78 65.20 57.56 49.36 41.73 1983 37.62 38.80 44.67 53.17 61.83 70.51 75.60 74.51 67.40 57.24 45.50 36.51 1984 34.65 36.68 44.54 51.60 63.06 69.99 74.16 71.39 67.69 57.38 50.55 39.41 1985 37.01 37.52 47.36 56.69 64.78 70.29 72.98 72.43 67.05 60.16 48.85 40.30 1986 34.62 38.28 46.02 55.82 65.48 72.56 74.87 72.70 66.47 57.54 47.39 38.33 1987 35.08 38.00 44.77 54.41 63.89 73.02 76.98 75.46 66.05 57.09 47.16 39.31 1988 35.07 37.29 45.80 54.72 63.22 71.07 75.71 73.77 65.17 54.97 45.11 40.64 1989 37.20 39.99 44.82 53.06 63.01 70.45 74.24 72.13 66.36 57.35 43.13 37.65 1990 36.72 44.84 49.05 55.34 63.06 70.44 74.03 72.61 66.84 59.35 51.08 43.28 1991 40.08 41.70 48.34 57.87 66.45 73.59 75.37 73.68 66.90 57.02 48.06 41.02 1992 38.95 39.50 45.72 52.56 60.89 68.07 71.65 71.25 63.51 55.32 45.70 40.34 1993 36.70 37.53 42.80 52.75 63.42 71.89 75.33 74.42 66.44 56.92 45.96 37.08 1994 33.77 36.73 47.18 55.11 65.31 70.88 74.27 71.08 63.63 56.55 48.40 42.23 1995 36.40 38.33 44.07 53.51 61.57 69.93 75.20 74.03 67.60 55.79 44.55 35.75 1996 33.30 35.53 43.05 52.04 63.22 69.51 73.47 71.46 65.59 55.03 45.59 38.04 1997 37.86 40.47 46.58 52.86 60.64 68.56 73.00 72.06 65.44 55.78 46.20 38.58 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 8 0.949 0.935 0.932 0.922 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.6 34.7 37.0 34.6 35.1 35.1 37.2 36.7 40.1 39.0 36.7 33.8 36.4 33.3 37.9 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3 S- 7 1.4 1.9 2.2 2.3 1.9 2.2 2.2 2.2 2.7 2.5 2.3 3.4 0.6 1.9 1.2 S- 9 2.4 3.3 4.1 3.1 2.7 2.9 2.7 3.0 3.8 3.2 2.8 3.5 2.2 2.7 2.4 S- 10 -3.1 -3.9 -3.3 -4.3 -3.3 -3.1 -3.5 -4.2 -3.4 -3.8 -3.6 -3.8 -5.1 -3.9 -3.9 S- 8 5.9 8.1 8.6 8.1 6.9 7.5 7.6 7.9 8.5 7.8 7.8 9.6 6.7 7.3 6.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.22 3.29 1.79 1.85 2.03 2.09 36.31 33.45 2.86 36.34 34.28 2.06 -0.80 9 3.21 4.27 2.77 2.93 3.07 2.94 32.62 3.69 33.35 2.99 -0.70 10 -3.67-2.33-4.29-4.31-3.58-3.93 39.40-3.08 40.07-3.74 -0.65 8 7.94 8.85 7.39 7.96 7.70 7.74 27.83 8.48 28.68 7.65 -0.83 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.71 2.52 3.11 2.68 1.16 1.85 2.00 0.92 0.79 9 2.89 2.99 1.04 1.85 1.00 0.96 10 2.48 2.49 1.25 1.82 1.01 0.81 8 2.85 2.97 1.05 2.18 0.85 0.81 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.97(F 7 - 34.28)(0.92) + 36.34 0.97(F 9 - 33.35)(1.00) + 36.34 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.938 0.934 0.918 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.8 36.7 37.5 38.3 38.0 37.3 40.0 44.8 41.7 39.5 37.5 36.7 38.3 35.5 40.5 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6 S- 7 1.7 2.5 1.9 2.0 2.4 2.6 2.6 2.8 2.8 2.5 2.5 4.5 0.9 1.8 2.0 S- 10 -3.0 -4.0 -3.4 -4.2 -2.2 -2.5 -3.5 -3.4 -3.3 -4.2 -4.1 -4.0 -4.6 -3.9 -3.7 S- 9 2.8 2.8 4.1 2.4 2.7 3.3 1.8 2.8 3.7 2.5 2.3 3.6 2.3 2.7 2.6 S- 8 6.4 8.6 8.4 7.6 7.2 8.3 7.7 8.1 8.4 7.8 7.7 10.8 6.8 7.4 7.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.56 3.70 2.25 2.08 2.32 2.43 39.06 35.81 3.25 38.75 36.37 2.37 -0.88 10 -3.45-2.16-3.88-4.08-3.32-3.96 41.89-2.83 42.35-3.60 -0.78 9 3.19 4.52 2.76 2.83 2.91 2.80 35.21 3.85 35.92 2.82 -1.03 8 8.27 9.26 7.87 8.13 7.92 8.11 30.17 8.90 30.80 7.94 -0.95 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.66 2.26 2.79 1.94 1.44 2.25 2.33 0.96 0.67 10 2.45 2.14 1.30 2.25 1.00 0.77 9 2.79 2.46 1.13 2.36 0.95 0.84 8 2.54 2.13 1.31 2.53 0.89 0.68 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.97(F 7 - 36.37)(0.96) + 38.75 0.97(F 10 - 42.35)(1.00) + 38.75 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.932 0.930 0.902 0.895 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.7 44.5 47.4 46.0 44.8 45.8 44.8 49.0 48.3 45.7 42.8 47.2 44.1 43.0 46.6 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0 S- 7 1.9 2.5 2.1 2.9 2.2 3.2 2.6 2.6 2.4 3.1 2.7 4.2 1.5 1.8 2.1 S- 10 -2.6 -3.1 -3.0 -3.5 -1.6 -1.7 -3.2 -3.2 -2.9 -3.4 -3.4 -3.0 -4.5 -3.3 -2.8 S- 9 2.8 3.1 3.7 1.9 2.9 3.9 2.7 2.9 3.1 2.5 2.9 3.6 1.9 3.2 3.2 S- 8 6.4 8.1 8.1 7.3 5.9 8.7 8.1 7.6 7.3 7.8 7.5 10.3 7.4 7.2 7.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 2.74 3.71 2.58 2.36 2.47 2.53 46.12 42.80 3.32 45.65 43.14 2.51 -0.81 10 -2.80-1.75-3.08-3.23-2.75-3.33 48.40-2.28 48.67-3.02 -0.75 9 3.26 4.59 2.71 2.94 3.06 2.93 42.19 3.93 42.70 2.95 -0.98 8 8.01 8.88 7.62 7.99 7.66 7.87 37.55 8.57 37.97 7.68 -0.89 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.28 1.89 2.54 1.67 1.52 1.75 1.66 1.06 0.69 10 1.97 1.95 1.30 1.80 0.98 0.75 9 2.04 2.10 1.21 1.69 1.04 0.86 8 2.04 1.85 1.38 1.74 1.01 0.73 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.97(F 7 - 43.14)(1.06) + 45.65 0.96(F 10 - 48.67)(0.98) + 45.65 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 8 0.932 0.906 0.873 0.868 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.2 51.6 56.7 55.8 54.4 54.7 53.1 55.3 57.9 52.6 52.8 55.1 53.5 52.0 52.9 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3 S- 10 -2.3 -2.7 -2.5 -1.9 -1.5 -1.0 -2.2 -2.6 -2.0 -2.5 -2.9 -2.1 -3.8 -2.9 -2.2 S- 7 1.9 2.4 1.9 2.1 1.7 2.9 2.2 2.4 2.3 2.6 1.8 3.2 1.1 2.0 2.1 S- 9 3.4 3.3 3.0 3.1 2.4 3.8 3.1 3.2 2.8 2.6 3.0 4.6 1.9 2.9 4.1 S- 8 7.1 8.3 7.1 6.6 5.2 7.4 7.3 7.2 6.4 6.6 6.1 9.1 6.4 6.9 7.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.06-1.28-2.23-2.29-2.05-2.64 55.19 56.76-1.57 54.10 56.44-2.34 -0.76 7 2.54 3.49 2.54 2.16 2.21 2.17 52.01 3.19 51.92 2.18 -1.01 9 3.33 4.49 2.77 3.05 3.17 3.10 51.18 4.01 50.97 3.13 -0.87 8 7.31 8.27 7.06 7.10 7.04 7.00 47.25 7.94 47.09 7.01 -0.94 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.84 1.52 1.96 1.54 1.28 1.74 1.62 1.08 0.84 7 1.59 1.43 1.37 1.74 1.00 0.73 9 1.68 1.70 1.15 1.83 0.95 0.83 8 1.74 1.57 1.25 2.03 0.86 0.68 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 56.44)(1.08) + 54.10 0.95(F 7 - 51.92)(1.00) + 54.10 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 13 9 0.933 0.915 0.892 0.885 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.8 63.1 64.8 65.5 63.9 63.2 63.0 63.1 66.4 60.9 63.4 65.3 61.6 63.2 60.6 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 -1.3 -1.5 -2.0 -1.2 -1.5 -0.5 -1.6 -2.0 -1.5 -1.9 -2.0 -1.0 -3.4 -2.1 -1.1 S- 7 1.7 2.1 2.0 2.4 1.5 2.3 1.8 1.8 1.8 1.9 1.7 2.3 0.6 1.9 1.5 S- 13 -3.6 -3.6 -4.2 -4.5 -4.2 -3.3 -3.6 -4.8 -3.5 -4.3 -4.1 -3.0 -6.5 -4.8 -3.2 S- 9 3.9 3.5 3.6 3.7 2.8 3.9 4.5 3.7 2.7 2.9 3.4 4.7 1.8 3.0 4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.42-0.91-1.52-1.49-1.48-1.84 64.52 65.60-1.08 63.32 64.96-1.64 -0.55 7 2.14 2.96 1.98 1.92 2.04 1.66 61.88 2.63 61.50 1.82 -0.81 13 -4.19-3.91-4.55-4.20-4.11-4.21 68.64-4.12 67.41-4.09 0.04 9 3.60 4.32 3.02 3.55 3.72 3.29 60.56 3.95 59.81 3.51 -0.44 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.61 1.42 1.66 1.39 1.19 1.62 1.58 1.03 0.86 7 1.33 1.27 1.30 1.46 1.11 0.85 13 1.50 1.36 1.22 1.66 0.98 0.80 9 1.51 1.56 1.06 1.75 0.93 0.87 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 64.96)(1.03) + 63.32 0.96(F 7 - 61.50)(1.11) + 63.32 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 38 0.923 0.918 0.916 0.905 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.5 70.0 70.3 72.6 73.0 71.1 70.4 70.4 73.6 68.1 71.9 70.9 69.9 69.5 68.6 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 S- 10 -0.8 -1.4 -1.5 -1.4 -1.0 -0.2 -1.4 -1.7 -1.2 -2.0 -1.9 -1.4 -2.3 -2.1 -1.1 S- 7 1.6 1.5 1.2 1.5 1.9 1.0 1.3 1.5 1.4 1.2 1.4 1.1 0.4 1.4 1.0 S- 9 4.4 3.8 3.7 4.0 3.4 3.9 4.1 4.1 3.2 3.0 3.6 4.2 2.8 3.0 4.0 S- 38 1.4 1.5 1.1 0.8 0.7 1.1 2.3 1.7 0.6 0.8 1.5 1.9 0.2 0.1 1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.14-0.62-1.14-1.20-1.21-1.72 71.42 72.15-0.73 70.72 72.15-1.43 -0.70 7 1.53 2.36 1.28 1.27 1.49 1.14 69.39 2.02 69.42 1.30 -0.72 9 3.74 4.34 3.40 3.59 3.90 3.40 67.31 4.11 67.04 3.68 -0.43 38 0.99 1.22 0.72 0.79 1.26 0.93 70.33 1.08 69.57 1.14 0.06 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.48 1.30 1.45 1.15 1.26 1.49 1.40 1.06 0.85 7 1.20 1.07 1.35 1.38 1.07 0.80 9 1.42 1.45 1.00 1.53 0.97 0.98 38 1.56 1.61 0.90 1.65 0.90 1.00 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.96(F 10 - 72.15)(1.06) + 70.72 0.96(F 7 - 69.42)(1.07) + 70.72 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 9 10 7 0.895 0.892 0.885 0.858 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.6 74.2 73.0 74.9 77.0 75.7 74.2 74.0 75.4 71.7 75.3 74.3 75.2 73.5 73.0 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 S- 38 0.4 0.9 1.0 0.8 2.2 0.9 1.4 1.5 1.0 1.3 1.0 0.8 -0.1 1.1 1.2 S- 9 4.2 3.7 3.9 3.9 4.3 3.6 3.5 3.7 3.4 3.1 3.2 3.0 2.8 3.7 3.8 S- 10 -0.5 -1.0 -1.4 -1.8 -0.6 -0.3 -1.7 -1.8 -1.4 -2.4 -1.9 -2.0 -1.3 -1.3 -1.0 S- 7 1.3 1.1 1.0 1.5 2.3 0.8 1.0 0.9 0.7 1.0 1.0 0.3 0.8 1.1 0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 1.04 1.15 1.11 0.91 1.08 0.90 74.72 73.63 1.09 74.46 73.43 1.03 -0.06 9 3.85 4.38 3.75 3.82 3.84 3.30 70.51 4.21 70.87 3.59 -0.62 10 -1.08-0.57-1.03-1.16-1.19-1.60 75.44-0.72 75.81-1.35 -0.63 7 1.23 1.97 0.90 1.07 1.25 0.82 73.07 1.65 73.42 1.04 -0.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.26 1.33 1.29 1.30 0.99 1.29 1.39 0.93 0.94 9 1.17 1.06 1.21 1.25 1.03 0.85 10 1.07 0.93 1.39 1.08 1.20 0.87 7 1.05 0.92 1.41 1.18 1.09 0.78 Suggested regression eqns from two most closely related CDs ( 38 and 9): 0.95(F 38 - 73.43)(0.93) + 74.46 0.94(F 9 - 70.87)(1.03) + 74.46 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 38 39 9 0.898 0.870 0.866 0.856 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.5 71.4 72.4 72.7 75.5 73.8 72.1 72.6 73.7 71.3 74.4 71.1 74.0 71.5 72.1 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 S- 10 -0.9 -1.2 -1.0 -2.2 -0.8 -0.8 -1.9 -1.7 -1.7 -2.6 -1.9 -2.5 -1.1 -1.7 -1.4 S- 38 0.2 1.0 1.5 -0.2 2.7 0.4 0.8 1.1 1.3 1.4 1.6 0.7 0.7 1.0 1.3 S- 39 -2.4 -1.1 -0.6 -2.4 0.4 -1.4 -0.7 -0.9 -1.2 -0.6 -0.4 -1.0 -1.0 -0.8 -1.0 S- 9 4.3 3.9 3.9 2.9 4.6 3.0 3.1 3.5 3.5 2.9 3.3 2.7 3.7 3.8 4.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.25-0.54-1.21-1.52-1.29-1.86 73.62 74.33-0.72 72.87 74.43-1.56 -0.85 38 1.06 1.23 1.09 0.93 0.90 1.16 72.45 1.17 71.83 1.03 -0.14 39 -0.83-0.46-0.72-0.96-1.15-0.86 74.18-0.56 73.87-1.01 -0.45 9 3.83 4.47 3.74 3.71 3.69 3.44 69.36 4.26 69.30 3.56 -0.69 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.44 1.24 1.50 1.12 1.34 1.32 1.08 1.22 0.91 38 1.54 1.41 1.06 1.33 0.99 0.93 39 1.60 1.40 1.07 1.45 0.91 0.85 9 1.38 1.36 1.11 1.21 1.09 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 38): 0.95(F 10 - 74.43)(1.22) + 72.87 0.93(F 38 - 71.83)(0.99) + 72.87 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 7 11 0.917 0.910 0.887 0.878 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 67.4 67.7 67.1 66.5 66.1 65.2 66.4 66.8 66.9 63.5 66.4 63.6 67.6 65.6 65.4 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 S- 13 -3.3 -3.4 -3.2 -4.0 -2.9 -3.0 -3.0 -4.3 -2.8 -4.4 -4.1 -4.2 -3.0 -3.1 -3.6 S- 10 -1.6 -1.6 -1.8 -2.1 -1.2 -1.0 -1.8 -1.7 -1.5 -2.7 -2.2 -2.7 -1.5 -1.7 -1.6 S- 7 1.0 1.4 1.1 1.4 2.4 1.6 1.0 1.2 1.2 1.0 1.5 0.4 0.8 0.9 1.2 S- 11 1.7 1.5 1.5 0.7 2.5 2.1 2.2 1.5 1.7 0.4 1.4 0.2 2.1 1.5 1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.30-2.80-3.32-3.45-3.44-3.59 67.29 70.25-2.95 66.14 69.62-3.48 -0.53 10 -1.53-0.73-1.60-1.90-1.57-1.99 68.22-0.93 67.92-1.77 -0.84 7 1.36 2.21 0.99 1.21 1.31 0.98 65.38 1.91 64.95 1.20 -0.71 11 1.63 2.11 1.60 1.54 1.55 1.27 65.38 1.91 64.65 1.49 -0.41 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.64 1.44 1.69 1.41 1.20 1.24 1.10 1.13 0.94 10 1.42 1.31 1.28 1.07 1.17 0.91 7 1.41 1.37 1.23 1.22 1.02 0.83 11 1.43 1.27 1.33 1.04 1.20 0.90 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.96(F 13 - 69.62)(1.13) + 66.14 0.95(F 10 - 67.92)(1.17) + 66.14 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 13 10 0.906 0.895 0.887 0.886 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.2 57.4 60.2 57.5 57.1 55.0 57.3 59.3 57.0 55.3 56.9 56.5 55.8 55.0 55.8 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 S- 7 0.8 1.3 1.6 1.8 2.4 1.6 1.5 2.1 1.4 1.2 1.8 0.4 0.6 1.1 1.1 S- 8 6.1 6.5 6.9 7.0 7.4 6.3 6.8 6.9 6.4 5.9 7.0 5.4 5.9 5.5 6.3 S- 13 -3.7 -4.2 -4.8 -5.5 -2.8 -3.9 -3.8 -3.5 -3.4 -4.9 -4.6 -4.3 -3.9 -3.9 -3.8 S- 10 -2.2 -2.2 -2.9 -3.1 -1.3 -1.5 -2.3 -1.4 -2.2 -3.2 -3.2 -2.9 -2.4 -2.2 -2.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.49 2.18 1.18 1.34 1.55 1.08 57.87 55.94 1.92 56.90 55.53 1.37 -0.55 8 6.44 7.03 5.88 6.47 6.65 6.05 51.17 6.70 50.48 6.42 -0.27 13 -3.88-3.30-3.91-4.19-3.95-4.11 61.38-3.51 60.96-4.06 -0.55 10 -2.02-1.24-2.02-2.38-2.03-2.62 59.27-1.41 59.25-2.35 -0.95 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.65 1.45 1.28 1.11 1.15 1.41 1.28 1.11 0.96 8 1.60 1.18 1.08 1.16 1.21 1.13 13 1.52 0.79 1.61 1.60 0.88 0.55 10 1.52 0.78 1.63 1.55 0.91 0.56 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.95(F 7 - 55.53)(1.11) + 56.90 0.95(F 8 - 50.48)(1.21) + 56.90 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 8 0.948 0.927 0.925 0.918 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.5 50.5 48.8 47.4 47.2 45.1 43.1 51.1 48.1 45.7 46.0 48.4 44.5 45.6 46.2 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2 S- 7 0.8 1.6 2.1 1.5 2.1 1.6 1.6 2.1 1.6 1.3 1.3 0.6 1.1 0.9 1.0 S- 9 3.3 2.9 3.0 2.9 3.7 3.9 3.8 4.4 3.6 2.9 3.1 2.1 3.5 3.0 3.9 S- 10 -3.2 -2.7 -3.7 -3.7 -1.8 -2.0 -3.4 -2.0 -2.7 -3.3 -3.5 -3.6 -3.0 -3.1 -2.3 S- 8 6.6 7.0 8.1 7.0 6.9 6.4 7.4 7.2 6.6 6.3 6.7 5.8 6.2 5.2 6.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 1.51 2.10 1.32 1.34 1.56 1.13 47.06 45.16 1.90 46.88 45.46 1.42 -0.48 9 3.43 4.19 3.12 3.21 3.38 3.15 43.22 3.84 43.56 3.32 -0.52 10 -2.73-2.01-2.91-3.02-2.73-3.08 49.29-2.23 49.82-2.94 -0.71 8 6.61 7.17 6.03 6.73 6.88 6.11 40.25 6.81 40.25 6.63 -0.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.03 1.92 1.61 1.48 1.08 2.13 1.99 1.07 0.99 9 2.15 1.54 1.04 2.26 0.94 0.90 10 1.96 1.43 1.12 2.11 1.01 0.90 8 2.13 1.66 0.97 2.02 1.05 1.09 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.97(F 7 - 45.46)(1.07) + 46.88 0.96(F 9 - 43.56)(0.94) + 46.88 Station#1875 PIEDMONT/RESEARCH ST, va 4671204 lat/lon 78.10 38.22 7M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 7 38 0.947 0.946 0.938 0.931 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.5 39.4 40.3 38.3 39.3 40.6 37.7 43.3 41.0 40.3 37.1 42.2 35.8 38.0 38.6 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 S- 9 3.3 3.6 3.6 2.5 2.9 2.6 3.3 3.8 3.9 2.3 3.4 2.4 3.1 2.9 1.3 S- 10 -3.6 -3.2 -3.9 -4.1 -2.7 -2.8 -4.1 -2.7 -3.5 -3.9 -4.1 -4.1 -3.4 -3.7 -4.9 S- 7 1.5 1.7 2.0 1.4 2.3 1.8 1.8 3.0 1.9 1.3 2.1 0.3 1.9 1.0 -1.4 S- 38 2.1 2.2 2.3 0.7 0.7 0.0 1.2 2.3 1.9 0.9 2.2 0.7 1.5 1.0 -0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.28 4.10 2.99 3.24 3.15 2.75 39.15 35.43 3.72 39.23 36.24 2.99 -0.73 10 -3.43-2.59-3.73-3.69-3.33-3.97 42.12-2.97 42.90-3.67 -0.69 7 1.76 2.53 1.57 1.64 1.80 1.03 36.91 2.24 37.72 1.51 -0.73 38 1.41 1.95 1.11 1.60 1.21 1.06 37.37 1.77 37.97 1.26 -0.52 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.46 2.64 2.28 2.20 1.04 2.04 2.10 0.97 0.93 10 2.36 1.90 1.20 1.95 1.05 0.87 7 2.43 1.96 1.16 2.15 0.95 0.81 38 2.70 2.22 1.03 2.24 0.91 0.88 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 36.24)(0.97) + 39.23 0.97(F 10 - 42.90)(1.05) + 39.23 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 40.75 43.00 48.34 55.97 65.14 72.43 76.26 74.85 69.12 58.85 49.39 42.95 1952 42.03 43.66 48.88 56.55 66.99 74.40 78.11 75.36 66.88 57.88 47.92 43.76 1953 41.77 44.90 50.02 59.27 68.25 75.52 77.47 75.77 69.28 59.69 50.55 42.94 1954 41.68 43.21 51.09 56.99 66.20 72.01 76.66 76.61 71.10 60.90 48.85 39.91 1955 37.93 42.07 50.58 59.35 66.01 72.87 76.74 76.90 69.55 58.83 46.91 38.98 1956 37.80 41.71 48.28 55.51 64.97 72.39 76.32 74.10 68.42 58.80 52.49 43.83 1957 42.43 41.84 50.77 58.78 68.47 74.11 76.40 74.98 66.95 58.86 49.29 42.55 1958 37.22 36.97 44.72 55.15 64.83 72.42 76.02 75.30 68.04 59.64 47.71 40.57 1959 37.33 42.11 49.52 58.63 67.83 74.00 77.25 75.97 70.39 59.82 50.10 42.47 1960 39.87 37.90 45.58 54.07 66.76 71.58 75.85 74.39 67.92 58.77 47.21 39.24 1961 36.55 42.10 48.79 55.78 63.09 71.59 76.14 76.40 69.52 60.57 48.43 41.15 1962 37.71 40.41 47.53 57.68 67.40 73.10 74.46 71.90 67.07 57.94 47.88 39.60 1963 35.11 40.20 48.12 57.96 65.03 70.66 74.60 72.48 66.60 58.06 46.99 40.06 1964 35.83 40.99 46.81 56.45 64.95 71.71 73.94 71.98 64.44 57.24 49.21 43.21 1965 39.09 39.12 45.35 55.50 64.77 71.74 73.85 73.85 67.49 58.28 48.52 40.11 1966 36.67 38.81 46.17 54.44 62.39 70.25 74.14 72.76 65.73 57.36 47.62 42.72 1967 37.98 40.95 46.97 55.30 63.77 69.74 74.73 72.66 66.10 55.63 47.72 39.86 1968 36.69 40.13 48.51 58.46 66.03 72.71 77.49 76.24 70.54 61.39 50.05 40.60 1969 35.85 37.68 45.72 55.09 66.25 73.10 76.32 73.86 67.21 57.80 46.91 37.32 1970 34.08 36.62 46.20 56.68 67.66 74.31 77.32 77.02 71.87 62.54 51.08 41.26 1971 37.82 39.23 46.42 54.20 64.25 71.46 75.53 74.48 70.42 61.52 53.74 45.68 1972 42.17 41.89 47.09 55.96 63.61 70.56 74.14 74.15 66.98 57.88 49.84 43.70 1973 40.69 43.01 49.93 58.53 66.32 72.77 76.94 75.75 70.09 61.35 50.84 45.88 1974 42.28 45.58 50.33 58.64 65.39 71.04 74.39 73.36 66.13 57.06 48.53 43.60 1975 41.27 42.49 46.61 55.31 64.75 72.39 76.11 74.72 70.19 61.79 51.99 42.77 1976 41.03 45.33 53.89 59.39 66.72 72.33 75.85 73.92 66.20 55.24 44.61 34.78 1977 33.90 39.75 52.02 60.99 67.44 74.18 78.10 78.48 70.38 61.20 49.65 41.58 1978 34.51 36.24 44.35 55.77 65.83 72.52 77.43 76.85 70.40 61.20 51.08 43.71 1979 36.06 39.02 46.45 58.85 65.45 71.60 75.20 75.25 68.98 60.80 51.22 44.65 1980 39.06 40.81 48.27 58.86 67.37 73.68 77.87 78.48 70.71 59.22 47.23 38.55 1981 37.13 39.18 49.19 56.36 67.48 73.80 77.49 74.71 66.92 58.25 47.78 39.42 1982 36.92 40.76 49.03 58.48 66.59 74.12 75.65 74.46 67.96 60.26 52.39 45.15 1983 41.02 42.52 48.75 57.55 65.91 73.64 77.55 75.34 68.15 58.58 47.71 39.15 1984 37.60 40.12 47.90 54.88 66.28 72.98 76.88 73.53 70.22 60.13 53.54 42.23 1985 40.13 40.83 50.86 59.90 68.10 73.75 76.91 75.78 70.25 63.30 52.25 43.35 1986 37.68 41.89 49.72 58.66 67.38 74.58 77.05 75.33 68.90 60.57 50.58 41.47 1987 37.52 39.65 46.28 56.20 65.77 74.76 78.52 77.37 67.79 58.70 48.99 42.06 1988 38.07 39.74 47.73 56.54 64.83 72.78 77.51 76.09 67.22 57.46 47.73 43.94 1989 40.35 43.36 47.93 55.94 65.33 72.59 76.37 74.63 68.76 60.07 46.88 42.17 1990 41.62 48.78 52.74 58.58 66.22 73.53 77.08 75.28 69.62 61.73 53.98 46.27 1991 43.47 45.03 51.80 61.00 69.18 76.00 78.19 76.98 69.96 60.30 51.22 44.75 1992 42.52 43.52 49.26 55.54 63.42 70.66 74.69 74.50 66.69 59.00 49.25 44.23 1993 40.09 41.78 46.68 56.47 66.20 75.03 78.67 77.86 69.82 60.63 49.45 40.97 1994 37.43 40.84 50.95 58.34 68.05 74.05 78.18 75.30 67.36 59.77 51.94 46.23 1995 41.74 43.30 49.19 57.99 65.96 73.54 77.95 76.31 69.68 58.14 46.97 37.87 1996 35.77 38.39 46.35 55.27 65.88 72.03 75.20 73.59 67.71 57.39 48.65 41.48 1997 41.62 43.62 49.06 55.34 62.59 70.67 75.03 74.67 68.31 58.57 48.47 40.97 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.967 0.945 0.945 0.922 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.0 37.6 40.1 37.7 37.5 38.1 40.3 41.6 43.5 42.5 40.1 37.4 41.7 35.8 41.6 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 0.3 -0.9 -0.2 -1.3 -0.8 -0.1 -0.3 0.7 0.0 -0.2 -0.2 -0.1 0.3 -1.5 -0.2 S- 7 4.8 4.8 5.3 5.3 4.4 5.2 5.3 7.0 6.1 6.1 5.7 7.1 5.9 4.4 4.9 S- 9 5.8 6.2 7.3 6.2 5.1 5.9 5.8 7.9 7.2 6.8 6.2 7.1 7.6 5.1 6.2 S- 13 -2.3 -4.2 -3.3 -4.9 -3.9 -2.8 -3.9 -3.0 -2.4 -3.5 -2.8 -3.6 -1.9 -5.1 -3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.47-0.49-0.88-0.42-0.24-0.27 38.87 39.40-0.52 39.78 40.07-0.30 0.22 7 5.42 5.13 5.19 5.74 5.37 5.75 33.45 5.42 34.28 5.50 0.08 9 6.41 6.11 6.17 6.82 6.42 6.59 32.62 6.25 33.35 6.43 0.17 13 -3.79-4.04-4.31-3.68-3.55-3.20 42.99-4.11 43.16-3.38 0.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.54 2.48 2.32 2.49 0.93 2.20 1.82 1.21 1.30 7 2.52 2.68 0.87 2.00 1.10 1.27 9 2.89 2.99 0.78 1.85 1.19 1.53 13 2.54 2.78 0.83 1.66 1.32 1.59 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 40.07)(1.21) + 39.78 0.97(F 7 - 34.28)(1.10) + 39.78 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 7 0.966 0.935 0.921 0.920 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.5 40.1 40.8 41.9 39.7 39.7 43.4 48.8 45.0 43.5 41.8 40.8 43.3 38.4 43.6 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 S- 10 0.7 -0.5 -0.1 -0.6 -0.6 -0.1 -0.2 0.6 0.1 -0.1 0.2 0.1 0.4 -1.0 -0.6 S- 9 6.5 6.3 7.4 6.0 4.3 5.8 5.2 6.8 7.0 6.5 6.5 7.7 7.3 5.6 5.7 S- 13 -1.9 -5.0 -3.8 -4.8 -4.2 -3.3 -4.3 -2.6 -3.0 -3.6 -3.0 -4.5 -2.7 -5.0 -5.3 S- 7 5.5 5.9 5.2 5.6 4.1 5.1 6.0 6.7 6.1 6.5 6.8 8.6 5.8 4.7 5.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.31-0.58-0.67-0.08 0.00-0.15 41.35 41.89-0.54 42.22 42.35-0.12 0.42 9 6.33 6.10 5.97 6.83 6.23 6.62 35.21 6.13 35.92 6.30 0.17 13 -4.11-4.47-4.42-3.91-3.80-3.87 45.76-4.42 46.03-3.81 0.61 7 5.71 5.27 5.46 6.09 5.64 6.25 35.81 5.54 36.37 5.85 0.31 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.51 2.45 2.07 2.14 0.97 2.49 2.25 1.11 1.14 9 2.79 2.46 0.84 2.36 1.05 1.25 13 2.57 2.47 0.84 2.21 1.13 1.34 7 2.26 1.94 1.07 2.33 1.07 1.00 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.35)(1.11) + 42.22 0.97(F 9 - 35.92)(1.05) + 42.22 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.947 0.918 0.899 0.874 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.8 47.9 50.9 49.7 46.3 47.7 47.9 52.7 51.8 49.3 46.7 51.0 49.2 46.3 49.1 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 1.4 0.3 0.5 0.2 -0.1 0.2 -0.1 0.4 0.5 0.1 0.5 0.7 0.6 0.0 -0.3 S- 7 5.9 5.9 5.6 6.6 3.7 5.1 5.7 6.2 5.9 6.6 6.6 7.9 6.6 5.1 4.6 S- 9 6.9 6.5 7.2 5.6 4.4 5.8 5.8 6.6 6.6 6.1 6.8 7.4 7.0 6.5 5.7 S- 13 -1.3 -3.4 -2.9 -4.5 -3.7 -3.4 -4.3 -2.7 -3.0 -3.2 -2.3 -3.0 -3.4 -3.7 -4.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.23-0.09-0.16 0.61 0.49 0.32 48.29 48.40-0.10 49.01 48.67 0.34 0.44 7 5.77 5.37 5.50 6.21 5.70 6.18 42.80 5.49 43.14 5.87 0.38 9 6.29 6.25 5.63 6.78 6.29 6.58 42.19 6.10 42.70 6.31 0.21 13 -3.55-3.71-4.19-3.18-3.26-3.33 52.13-3.83 52.32-3.30 0.53 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.13 1.97 1.93 1.95 0.99 1.89 1.80 1.05 1.06 7 1.89 1.67 1.16 1.66 1.14 0.98 9 2.04 2.10 0.92 1.69 1.12 1.22 13 1.96 2.04 0.95 1.92 0.99 1.04 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 48.67)(1.05) + 49.01 0.96(F 7 - 43.14)(1.14) + 49.01 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 8 0.913 0.902 0.837 0.817 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.5 54.9 59.9 58.7 56.2 56.5 55.9 58.6 61.0 55.5 56.5 58.3 58.0 55.3 55.3 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3 S- 10 2.1 0.6 0.7 1.0 0.2 0.8 0.7 0.7 1.1 0.4 0.8 1.1 0.7 0.4 0.3 S- 7 6.2 5.7 5.1 5.0 3.5 4.7 5.1 5.7 5.5 5.6 5.6 6.4 5.6 5.3 4.6 S- 9 7.8 6.6 6.2 6.0 4.2 5.6 5.9 6.4 5.9 5.5 6.7 7.8 6.4 6.1 6.5 S- 8 11.4 11.6 10.3 9.4 7.0 9.2 10.2 10.5 9.5 9.6 9.9 12.3 10.9 10.1 10.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.63 0.11 0.26 1.14 0.95 0.69 56.91 56.76 0.14 57.21 56.44 0.78 0.63 7 5.23 4.89 5.03 5.60 5.21 5.49 52.01 4.90 51.92 5.29 0.39 9 6.02 5.89 5.26 6.48 6.17 6.42 51.18 5.73 50.97 6.25 0.52 8 10.00 9.66 9.5510.5410.0410.32 47.25 9.66 47.0910.12 0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.78 1.52 1.58 1.54 1.03 1.76 1.62 1.09 1.06 7 1.59 1.43 1.10 1.74 1.02 0.92 9 1.68 1.70 0.92 1.83 0.96 1.04 8 1.74 1.57 1.00 2.03 0.87 0.86 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.96(F 10 - 56.44)(1.09) + 57.21 0.95(F 7 - 51.92)(1.02) + 57.21 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 4 0.889 0.883 0.815 0.789 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 65.9 66.3 68.1 67.4 65.8 64.8 65.3 66.2 69.2 63.4 66.2 68.1 66.0 65.9 62.6 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9 S- 10 2.7 1.7 1.4 0.6 0.4 1.1 0.7 1.2 1.3 0.7 0.8 1.7 1.0 0.6 0.9 S- 7 5.8 5.3 5.3 4.3 3.4 3.9 4.1 5.0 4.5 4.4 4.4 5.0 5.0 4.6 3.5 S- 12 -1.1 -2.5 -2.6 -3.6 -3.3 -3.0 -3.6 -3.6 -2.8 -3.5 -2.7 -1.8 -4.2 -3.9 -3.6 S- 4 9.8 10.1 11.4 9.6 8.2 8.5 9.0 10.4 9.2 8.4 8.9 10.5 10.3 9.6 7.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.92 0.45 0.59 1.31 1.27 0.99 66.05 65.60 0.45 66.07 64.96 1.12 0.67 7 4.48 4.32 4.09 4.71 4.79 4.49 61.88 4.16 61.50 4.57 0.41 12 -3.32-3.62-3.72-3.05-2.93-3.22 69.77-3.72 69.13-3.06 0.66 4 9.45 9.57 9.16 9.42 9.80 9.24 56.71 9.34 56.63 9.44 0.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.55 1.42 1.49 1.39 1.07 1.65 1.58 1.04 0.98 7 1.33 1.27 1.17 1.46 1.13 0.97 12 1.33 1.16 1.28 1.56 1.06 0.83 4 1.27 1.27 1.17 1.24 1.33 1.14 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 64.96)(1.04) + 66.07 0.94(F 7 - 61.50)(1.13) + 66.07 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 7 0.884 0.846 0.795 0.795 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.6 73.0 73.8 74.6 74.8 72.8 72.6 73.5 76.0 70.7 75.0 74.1 73.5 72.0 70.7 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 S- 10 2.3 1.6 2.0 0.6 0.8 1.5 0.8 1.4 1.2 0.6 1.2 1.8 1.3 0.4 1.0 S- 12 -1.1 -1.8 -1.9 -3.0 -1.7 -1.3 -2.6 -2.8 -1.5 -3.5 -2.1 -1.0 -2.3 -4.0 -2.6 S- 13 0.0 -0.1 -0.1 -2.2 -1.1 -0.1 -0.3 -1.0 0.1 -1.5 -1.1 0.5 -0.8 -2.6 -0.8 S- 7 4.7 4.5 4.7 3.5 3.6 2.7 3.5 4.6 3.8 3.8 4.5 4.2 4.0 3.9 3.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.00 0.63 0.61 1.27 1.43 1.07 72.70 72.15 0.56 73.37 72.15 1.22 0.67 12 -2.38-2.64-2.66-2.18-2.01-2.43 75.47-2.76 75.59-2.22 0.55 13 -1.17-1.90-1.56-0.80-0.63-0.89 74.61-1.91 74.11-0.74 1.17 7 3.68 3.62 3.03 3.74 4.13 3.93 69.39 3.31 69.42 3.95 0.64 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.43 1.30 1.26 1.15 1.10 1.45 1.40 1.03 0.94 12 1.23 1.04 1.22 1.25 1.16 0.95 13 1.48 1.32 0.96 1.49 0.97 1.01 7 1.20 1.07 1.18 1.38 1.04 0.89 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 72.15)(1.03) + 73.37 0.92(F 12 - 75.59)(1.16) + 73.37 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.869 0.788 0.775 0.747 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 77.6 76.9 76.9 77.1 78.5 77.5 76.4 77.1 78.2 74.7 78.7 78.2 77.9 75.2 75.0 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 12 78.8 77.9 78.0 80.1 79.8 78.3 78.6 79.4 79.1 77.9 80.1 78.5 78.7 77.9 76.9 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 S- 10 1.4 1.7 2.5 0.4 1.0 1.5 0.5 1.3 1.4 0.7 1.5 1.9 1.4 0.4 1.0 S- 12 -1.2 -1.1 -1.1 -3.0 -1.3 -0.8 -2.3 -2.3 -0.9 -3.2 -1.4 -0.3 -0.8 -2.7 -1.8 S- 9 6.1 6.4 7.8 6.0 5.8 5.4 5.6 6.8 6.2 6.2 6.5 6.9 5.6 5.4 5.9 S- 13 -0.5 0.3 0.6 -2.2 -0.5 0.1 -0.4 -1.0 0.6 -1.1 -0.7 1.2 0.1 -1.6 -0.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.02 0.74 0.58 1.24 1.37 1.20 76.00 75.44 0.57 77.05 75.81 1.25 0.68 12 -1.78-1.99-2.13-1.45-1.66-1.61 78.24-2.23 78.68-1.62 0.61 9 5.95 5.69 5.36 6.22 6.41 6.11 70.51 5.49 70.87 6.18 0.69 13 -0.73-1.44-1.01-0.33-0.47-0.28 77.48-1.47 77.42-0.37 1.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.33 1.07 1.23 0.93 1.32 1.22 1.08 1.13 0.86 12 1.03 0.92 1.33 0.88 1.39 1.04 9 1.17 1.06 1.16 1.25 0.97 0.84 13 1.24 1.16 1.06 1.16 1.05 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.93(F 10 - 75.81)(1.13) + 77.05 0.89(F 12 - 78.68)(1.39) + 77.05 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.895 0.828 0.822 0.787 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.3 73.5 75.8 75.3 77.4 76.1 74.6 75.3 77.0 74.5 77.9 75.3 76.3 73.6 74.7 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 S- 10 -0.1 0.9 2.3 0.5 1.1 1.5 0.6 1.0 1.6 0.6 1.5 1.7 1.2 0.4 1.2 S- 12 -3.0 -2.2 -0.9 -3.3 -1.5 -1.6 -2.5 -2.9 -1.0 -3.3 -1.4 -1.0 -1.4 -3.2 -2.3 S- 9 5.2 6.1 7.3 5.5 6.5 5.4 5.6 6.2 6.8 6.2 6.7 6.9 5.9 5.9 6.8 S- 7 2.0 3.1 4.1 3.6 4.6 3.2 3.2 4.0 4.3 4.4 4.8 4.1 3.2 2.9 3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.86 0.61 0.38 1.10 1.15 1.18 74.72 74.33 0.39 75.50 74.43 1.07 0.69 12 -2.14-2.28-2.59-1.73-2.08-1.95 77.28-2.56 77.61-2.10 0.46 9 5.94 5.61 5.33 6.33 6.13 6.48 69.36 5.36 69.30 6.20 0.84 7 3.35 3.20 2.48 3.72 3.59 3.93 71.85 2.87 71.81 3.69 0.82 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.56 1.24 1.56 1.12 1.40 1.22 1.08 1.13 0.81 12 1.09 0.92 1.68 0.97 1.26 0.75 9 1.38 1.36 1.15 1.21 1.01 0.88 7 1.19 1.31 1.18 1.04 1.17 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.95(F 10 - 74.43)(1.13) + 75.50 0.91(F 12 - 77.61)(1.26) + 75.50 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.900 0.841 0.839 0.823 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.2 70.2 70.3 68.9 67.8 67.2 68.8 69.6 70.0 66.7 69.8 67.4 69.7 67.7 68.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 S- 10 -0.8 1.0 1.4 0.3 0.5 1.1 0.7 1.1 1.5 0.5 1.2 1.0 0.6 0.4 1.3 S- 9 4.5 5.9 6.6 5.6 5.9 5.8 6.1 6.5 6.5 5.7 6.5 6.1 5.5 5.6 7.1 S- 7 1.8 4.0 4.3 3.8 4.1 3.6 3.4 4.0 4.2 4.2 4.9 4.1 2.8 3.1 4.0 S- 13 -2.5 -0.8 -0.1 -1.6 -1.1 -1.0 -0.6 -1.5 0.3 -1.2 -0.7 -0.5 -0.9 -1.0 -0.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.53 0.14 0.11 0.77 0.82 0.93 68.18 68.22-0.04 68.70 67.92 0.78 0.82 9 5.76 5.32 5.23 6.26 5.95 6.15 63.15 5.03 62.70 6.00 0.97 7 3.42 3.08 2.70 3.88 3.70 3.90 65.38 2.80 64.95 3.75 0.95 13 -1.24-1.93-1.61-0.78-1.05-0.67 70.25-2.06 69.62-0.93 1.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.67 1.42 1.65 1.31 1.26 1.15 1.07 1.07 0.86 9 1.50 1.33 1.24 1.10 1.05 0.84 7 1.41 1.37 1.20 1.22 0.94 0.78 13 1.44 1.41 1.17 1.10 1.04 0.89 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 67.92)(1.07) + 68.70 0.92(F 9 - 62.70)(1.05) + 68.70 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.926 0.878 0.870 0.852 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.6 60.1 63.3 60.6 58.7 57.5 60.1 61.7 60.3 59.0 60.6 59.8 58.1 57.4 58.6 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 S- 10 -0.9 0.6 0.2 -0.1 0.3 1.0 0.4 1.0 1.1 0.4 0.5 0.3 -0.1 0.1 0.6 S- 9 5.0 6.2 5.8 5.7 6.0 6.4 6.7 6.6 6.9 6.0 6.9 5.6 6.1 6.3 7.1 S- 13 -2.3 -1.4 -1.7 -2.5 -1.1 -1.4 -1.0 -1.1 -0.1 -1.2 -0.9 -1.0 -1.6 -1.6 -1.0 S- 12 -5.2 -3.4 -5.2 -5.8 -4.2 -4.7 -4.5 -3.9 -2.8 -4.6 -4.3 -4.2 -4.8 -4.8 -4.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.18-0.18-0.13 0.38 0.48 0.43 58.94 59.27-0.33 59.62 59.25 0.37 0.70 9 5.89 5.58 5.31 6.24 6.09 6.41 53.73 5.21 53.41 6.21 1.00 13 -1.67-2.23-2.02-1.43-1.44-1.06 61.38-2.44 60.96-1.33 1.10 12 -4.29-4.54-4.32-4.03-4.29-4.25 63.61-4.67 64.06-4.43 0.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.72 1.52 0.99 0.78 1.26 1.55 1.55 1.00 0.80 9 1.66 0.90 1.09 1.63 0.95 0.87 13 1.52 0.79 1.24 1.60 0.97 0.78 12 1.57 0.77 1.28 1.65 0.94 0.73 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 59.25)(1.00) + 59.62 0.94(F 9 - 53.41)(0.95) + 59.62 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.965 0.944 0.931 0.924 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 47.7 53.5 52.3 50.6 49.0 47.7 46.9 54.0 51.2 49.3 49.5 51.9 47.0 48.7 48.5 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 S- 10 -1.0 0.3 -0.3 -0.5 0.0 0.6 0.4 0.9 0.5 0.2 0.0 -0.1 -0.6 0.0 -0.1 S- 9 5.5 5.9 6.4 6.1 5.5 6.5 7.5 7.2 6.8 6.4 6.6 5.6 5.9 6.0 6.2 S- 7 3.0 4.6 5.5 4.7 3.9 4.2 5.4 5.0 4.8 4.9 4.8 4.2 3.5 4.0 3.3 S- 13 -3.0 -2.0 -2.6 -2.8 -1.8 -1.9 -2.4 -0.8 -1.2 -1.4 -1.3 -1.6 -2.7 -1.8 -1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.14-0.41-0.51 0.06 0.20-0.01 48.76 49.29-0.53 49.84 49.82 0.02 0.55 9 6.01 5.79 5.52 6.29 6.31 6.22 43.22 5.55 43.56 6.28 0.73 7 4.10 3.70 3.72 4.43 4.49 4.20 45.16 3.60 45.46 4.38 0.78 13 -2.24-2.75-2.76-1.89-2.02-1.62 51.66-2.90 51.75-1.91 0.99 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.08 1.96 1.45 1.43 1.02 2.22 2.11 1.05 1.04 9 2.15 1.54 0.94 2.26 0.98 1.05 7 1.92 1.48 0.98 1.99 1.12 1.14 13 1.84 1.31 1.10 2.05 1.08 0.98 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 49.82)(1.05) + 49.84 0.97(F 9 - 43.56)(0.98) + 49.84 Station#1876 RICHMOND/R E BYRD IN, va 4720101 lat/lon 77.33 37.50 1M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.963 0.941 0.928 0.922 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.2 42.2 43.3 41.5 42.1 43.9 42.2 46.3 44.8 44.2 41.0 46.2 37.9 41.5 41.0 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 S- 10 -1.0 -0.3 -0.9 -1.0 0.0 0.5 0.4 0.3 0.2 0.0 -0.2 -0.1 -1.3 -0.3 -2.6 S- 9 5.9 6.4 6.7 5.6 5.6 5.9 7.8 6.8 7.6 6.2 7.3 6.4 5.3 6.3 3.7 S- 7 4.1 4.5 5.0 4.5 5.0 5.1 6.4 6.0 5.7 5.2 6.0 4.3 4.0 4.5 1.0 S- 12 -7.4 -5.8 -6.8 -8.3 -5.8 -5.9 -6.1 -5.4 -4.5 -6.4 -6.5 -5.4 -7.9 -6.9 -8.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.46-0.61-0.80-0.24-0.09-0.62 41.42 42.12-0.70 42.48 42.90-0.42 0.28 9 6.25 6.08 5.92 6.69 6.39 6.11 35.43 5.99 36.24 6.23 0.24 7 4.73 4.52 4.50 5.09 5.04 4.38 36.91 4.51 37.72 4.76 0.24 12 -6.42-6.56-6.58-6.23-6.24-6.50 48.06-6.64 48.94-6.46 0.18 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.46 2.36 1.68 1.90 0.88 2.29 1.95 1.18 1.33 9 2.64 2.20 0.76 2.10 1.09 1.43 7 2.43 1.96 0.86 2.15 1.07 1.25 12 2.40 2.02 0.83 1.66 1.38 1.66 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.90)(1.18) + 42.48 0.97(F 9 - 36.24)(1.09) + 42.48 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 38.84 41.24 46.67 54.70 63.84 71.01 74.86 73.33 68.02 56.56 46.67 40.55 1952 40.78 43.08 47.82 55.51 66.39 73.70 76.46 72.89 64.84 56.21 47.10 42.73 1953 41.10 43.91 48.58 57.93 66.92 74.59 76.57 74.70 68.80 59.12 49.22 41.31 1954 40.17 42.37 50.24 55.53 64.85 70.53 75.59 75.06 68.89 58.05 46.43 38.37 1955 37.12 41.06 49.48 58.70 65.30 71.86 75.04 75.28 67.98 57.17 45.65 37.97 1956 37.04 41.05 47.20 55.08 63.85 71.38 74.74 72.96 67.13 57.11 50.83 43.01 1957 42.26 41.43 49.60 57.56 67.03 72.57 74.61 72.92 65.18 56.66 47.53 40.76 1958 35.52 35.60 43.20 53.89 64.08 71.51 75.02 73.83 66.70 58.47 47.14 40.05 1959 36.88 40.76 48.41 57.55 67.01 73.17 76.65 75.53 69.63 58.21 48.50 41.24 1960 38.58 36.16 43.51 52.34 65.41 70.66 75.55 74.45 68.67 58.69 46.24 37.63 1961 35.36 41.46 47.56 54.20 61.25 69.75 74.51 74.70 68.53 59.78 48.22 40.59 1962 37.57 39.74 45.89 55.74 65.40 72.15 73.64 71.18 66.19 56.43 45.91 36.98 1963 32.75 38.38 47.10 57.55 65.28 70.71 73.89 71.65 66.78 58.36 46.48 38.68 1964 34.41 39.86 46.40 56.87 66.26 72.57 74.81 72.27 64.90 57.28 48.34 42.26 1965 37.48 38.14 44.55 55.33 64.65 70.93 72.61 72.59 66.55 57.66 48.31 39.76 1966 35.73 37.50 44.62 53.82 61.94 70.72 74.00 72.35 64.52 55.90 46.49 41.86 1967 37.89 41.57 47.70 55.43 62.69 67.50 72.09 69.80 63.50 53.75 46.48 39.17 1968 36.07 39.46 47.36 56.71 63.36 69.73 74.06 72.59 66.45 57.39 46.36 37.90 1969 34.30 36.70 45.17 54.28 65.12 71.32 74.17 72.08 65.55 55.92 44.90 35.86 1970 33.27 36.32 45.42 55.22 65.39 71.89 74.35 74.26 68.72 59.51 48.66 39.96 1971 37.58 38.83 46.16 53.47 63.15 69.17 72.90 71.98 68.12 59.10 50.95 43.37 1972 40.36 40.47 45.79 54.34 61.71 67.97 71.74 71.72 64.25 55.00 47.37 42.35 1973 39.28 41.52 47.15 55.32 62.86 70.05 75.06 74.08 68.59 59.73 48.86 44.16 1974 40.83 45.18 49.20 57.40 63.19 68.97 72.04 70.96 64.38 55.65 47.03 41.85 1975 39.59 40.73 45.22 53.85 63.64 70.80 74.35 72.73 67.83 59.19 49.91 40.95 1976 39.46 43.57 51.70 56.81 63.21 68.71 72.03 70.43 62.45 51.83 41.56 32.60 1977 31.32 37.62 49.65 59.82 66.03 72.97 76.24 75.99 67.19 57.44 45.95 37.26 1978 31.08 33.94 43.61 54.69 64.21 70.77 75.40 74.97 67.56 58.22 47.62 39.99 1979 33.53 36.67 44.93 56.03 62.94 68.85 72.28 71.30 64.96 56.81 48.35 42.55 1980 37.52 38.41 44.85 54.98 63.84 70.96 75.01 75.48 67.85 57.40 46.51 38.61 1981 36.22 37.74 46.75 54.14 64.43 70.28 74.48 71.91 64.36 54.96 43.86 35.43 1982 32.94 37.08 44.63 54.40 62.84 71.03 72.66 71.23 65.14 56.97 49.19 41.85 1983 38.20 39.79 45.48 53.46 61.15 69.36 75.04 74.41 67.70 57.42 46.36 38.41 1984 37.21 40.08 47.05 53.55 63.83 70.12 73.91 70.61 67.61 58.18 52.52 41.39 1985 38.98 40.05 50.46 59.67 67.17 72.04 74.32 72.93 67.48 61.35 50.23 41.77 1986 36.14 40.28 48.28 56.56 65.56 72.24 75.12 73.42 66.73 58.42 48.27 39.92 1987 36.49 39.28 45.77 55.67 65.11 73.74 77.35 75.36 66.00 56.57 47.46 40.48 1988 36.66 38.73 47.01 55.38 63.20 70.43 75.19 73.57 64.85 54.57 45.56 42.24 1989 39.51 42.43 46.80 54.25 63.01 70.20 74.55 72.71 66.82 57.50 44.64 39.65 1990 39.46 47.02 51.24 57.25 64.26 71.19 74.67 73.29 67.34 59.87 51.68 44.98 1991 41.88 43.75 49.93 58.77 66.90 73.66 75.40 74.03 67.81 58.51 49.53 42.85 1992 41.11 42.53 47.87 54.02 61.32 68.49 72.50 72.35 65.12 56.56 46.76 41.44 1993 38.10 39.35 44.34 54.07 64.02 72.59 76.37 75.27 66.88 57.03 46.26 37.89 1994 35.23 38.85 49.19 55.99 65.45 70.99 75.50 72.83 65.79 58.27 50.31 44.19 1995 39.52 41.97 48.18 57.06 64.36 71.06 75.84 74.35 68.14 56.38 45.73 37.35 1996 35.71 37.80 45.41 54.34 64.74 70.75 73.51 71.34 65.79 55.03 46.41 38.93 1997 39.50 42.78 48.50 54.15 60.64 68.51 72.92 72.45 65.76 55.86 46.06 39.06 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 11 0.967 0.963 0.949 0.943 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.2 37.2 39.0 36.1 36.5 36.7 39.5 39.5 41.9 41.1 38.1 35.2 39.5 35.7 39.5 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5 S- 10 -2.5 -1.3 -1.3 -2.8 -1.9 -1.5 -1.2 -1.5 -1.6 -1.6 -2.2 -2.3 -2.0 -1.5 -2.3 S- 9 3.0 5.8 6.1 4.6 4.1 4.5 5.0 5.8 5.6 5.4 4.2 4.9 5.4 5.1 4.1 S- 13 -5.1 -4.5 -4.5 -6.4 -5.0 -4.2 -4.8 -5.2 -4.0 -4.9 -4.8 -5.8 -4.1 -5.2 -5.2 S- 11 -0.4 1.7 2.4 0.3 -0.6 0.9 0.8 1.3 1.5 0.8 -0.3 -0.1 1.1 0.5 0.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.91-1.54-1.96-2.25-1.86-1.93 37.72 39.40-1.67 38.25 40.07-1.83 -0.16 9 4.98 5.06 5.10 5.00 4.79 4.94 32.62 5.10 33.35 4.90 -0.21 13 -5.22-5.09-5.38-5.50-5.17-4.86 42.99-5.26 43.16-4.91 0.35 11 0.48 0.60 0.29 0.45 0.57 0.49 37.27 0.45 37.59 0.66 0.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.70 2.48 2.54 2.49 1.02 1.91 1.82 1.05 1.03 9 2.89 2.99 0.85 1.85 1.03 1.22 13 2.54 2.78 0.91 1.66 1.15 1.26 11 2.77 3.08 0.83 1.75 1.09 1.32 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(1.05) + 38.25 0.98(F 9 - 33.35)(1.03) + 38.25 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 38 0.972 0.952 0.942 0.934 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.8 40.1 40.0 40.3 39.3 38.7 42.4 47.0 43.8 42.5 39.3 38.8 42.0 37.8 42.8 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 S- 10 -2.0 -0.6 -0.9 -2.2 -1.0 -1.1 -1.1 -1.2 -1.2 -1.1 -2.2 -1.9 -1.0 -1.6 -1.4 S- 9 3.8 6.2 6.6 4.4 3.9 4.8 4.3 5.0 5.7 5.5 4.1 5.7 6.0 5.0 4.9 S- 13 -4.6 -5.0 -4.6 -6.4 -4.6 -4.4 -5.2 -4.3 -4.3 -4.6 -5.4 -6.5 -4.0 -5.6 -6.1 S- 38 1.0 4.2 5.3 1.6 0.5 2.8 2.0 2.8 3.7 2.9 2.2 3.9 3.7 3.1 2.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.56-1.66-1.46-1.72-1.44-1.50 40.28 41.89-1.61 40.98 42.35-1.37 0.24 9 5.08 5.03 5.19 5.19 4.79 5.27 35.21 5.07 35.92 5.06 -0.01 13 -5.36-5.54-5.20-5.55-5.23-5.22 45.76-5.48 46.03-5.05 0.43 38 2.80 2.50 2.95 3.12 2.37 3.20 37.64 2.64 38.13 2.85 0.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.62 2.45 2.28 2.14 1.07 2.33 2.25 1.04 0.98 9 2.79 2.46 0.93 2.36 0.99 1.06 13 2.57 2.47 0.92 2.21 1.06 1.15 38 3.03 2.71 0.84 2.54 0.92 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.99(F 10 - 42.35)(1.04) + 40.98 0.98(F 9 - 35.92)(0.99) + 40.98 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 7 0.961 0.921 0.912 0.894 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.5 47.0 50.5 48.3 45.8 47.0 46.8 51.2 49.9 47.9 44.3 49.2 48.2 45.4 48.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 S- 10 -1.8 -0.6 0.1 -1.3 -0.6 -0.5 -1.2 -1.1 -1.3 -1.2 -1.8 -1.0 -0.4 -1.0 -0.9 S- 9 3.6 5.6 6.8 4.2 3.9 5.1 4.6 5.1 4.7 4.7 4.4 5.6 6.0 5.6 5.1 S- 13 -4.6 -4.3 -3.3 -6.0 -4.2 -4.1 -5.5 -4.2 -4.9 -4.6 -4.7 -4.8 -4.4 -4.7 -5.2 S- 7 2.7 5.0 5.2 5.2 3.2 4.4 4.6 4.8 4.0 5.2 4.2 6.2 5.6 4.2 4.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.16-1.40-1.00-1.10-1.18-1.09 47.08 48.40-1.31 47.70 48.67-0.97 0.34 9 4.90 4.94 4.79 5.07 4.63 5.17 42.19 4.89 42.70 5.00 0.11 13 -4.93-5.01-5.03-4.89-4.92-4.74 52.13-5.05 52.32-4.62 0.43 7 4.38 4.06 4.66 4.50 4.04 4.77 42.80 4.28 43.14 4.56 0.28 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.08 1.97 2.05 1.95 1.05 1.92 1.80 1.07 1.02 9 2.04 2.10 0.98 1.69 1.14 1.17 13 1.96 2.04 1.01 1.92 1.00 1.00 7 1.89 1.67 1.23 1.66 1.16 0.94 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(1.07) + 47.70 0.96(F 9 - 42.70)(1.14) + 47.70 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 12 0.945 0.912 0.910 0.880 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.5 53.5 59.7 56.6 55.7 55.4 54.3 57.3 58.8 54.0 54.1 56.0 57.1 54.3 54.2 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 S- 10 -2.0 -0.8 0.5 -1.1 -0.3 -0.3 -1.0 -0.7 -1.1 -1.1 -1.6 -1.3 -0.2 -0.6 -0.9 S- 13 -4.6 -4.4 -2.2 -4.6 -3.7 -3.6 -4.3 -3.7 -4.0 -3.9 -3.8 -4.4 -4.4 -4.2 -4.8 S- 9 3.7 5.3 6.0 3.9 3.7 4.4 4.2 5.1 3.7 4.0 4.3 5.4 5.5 5.2 5.4 S- 12 -6.6 -7.1 -4.0 -6.4 -4.9 -5.3 -6.6 -6.0 -6.4 -5.9 -6.1 -6.7 -6.5 -6.5 -7.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.86-1.04-0.56-0.83-0.93-0.96 55.90 56.76-0.87 55.61 56.44-0.83 0.04 13 -4.25-4.38-4.26-4.14-4.23-4.24 60.19-4.29 59.67-4.06 0.24 9 4.53 4.74 4.44 4.50 4.30 4.77 51.18 4.71 50.97 4.64 -0.07 12 -6.16-6.11-5.98-6.16-6.14-6.52 61.92-6.02 61.78-6.16 -0.14 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.72 1.52 1.70 1.54 1.11 1.86 1.62 1.15 1.04 13 1.53 1.59 1.07 1.57 1.18 1.11 9 1.68 1.70 1.00 1.83 1.01 1.01 12 1.46 1.46 1.16 1.58 1.17 1.01 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 56.44)(1.15) + 55.61 0.96(F 13 - 59.67)(1.18) + 55.61 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 10 9 12 0.929 0.928 0.915 0.913 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.2 63.8 67.2 65.6 65.1 63.2 63.0 64.3 66.9 61.3 64.0 65.4 64.4 64.7 60.6 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 S- 13 -4.3 -2.8 -1.8 -4.4 -3.0 -3.4 -3.6 -3.6 -3.0 -3.9 -3.5 -2.9 -3.8 -3.3 -3.2 S- 10 -2.0 -0.7 0.4 -1.2 -0.3 -0.6 -1.6 -0.8 -1.0 -1.4 -1.4 -0.9 -0.6 -0.6 -1.1 S- 9 3.2 4.3 6.0 3.8 4.0 3.9 4.5 4.9 3.2 3.4 4.0 4.8 4.6 4.5 4.5 S- 12 -5.9 -4.9 -3.6 -5.4 -3.9 -4.6 -5.9 -5.6 -5.0 -5.6 -4.9 -4.4 -5.8 -5.1 -5.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -3.56-3.63-3.43-3.65-3.68-3.36 65.17 68.64-3.47 64.05 67.41-3.36 0.11 10 -0.79-0.63-0.41-0.93-1.06-0.99 65.60-0.43 64.96-0.91 -0.48 9 4.23 4.60 4.13 4.10 4.15 4.14 60.56 4.61 59.81 4.24 -0.37 12 -5.02-4.70-4.72-5.29-5.27-5.20 69.77-4.60 69.13-5.09 -0.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.66 1.50 1.49 1.36 1.10 1.88 1.66 1.14 1.04 10 1.42 1.39 1.07 1.58 1.19 1.11 9 1.51 1.56 0.95 1.75 1.07 1.13 12 1.33 1.16 1.28 1.56 1.21 0.94 Suggested regression eqns from two most closely related CDs ( 13 and 10): 0.96(F 13 - 67.41)(1.14) + 64.05 0.96(F 10 - 64.96)(1.19) + 64.05 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 10 13 9 0.911 0.905 0.903 0.897 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.4 70.1 72.0 72.2 73.7 70.4 70.2 71.2 73.7 68.5 72.6 71.0 71.1 70.8 68.5 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 13 73.6 73.1 73.8 76.8 75.8 72.9 72.9 74.6 75.9 72.2 76.1 73.6 74.3 74.7 71.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 S- 11 1.3 2.5 3.5 1.4 2.6 2.5 3.0 2.6 2.7 1.7 2.3 3.0 2.3 1.6 2.1 S- 10 -2.0 -1.3 0.2 -1.7 -0.2 -0.9 -1.6 -1.0 -1.1 -1.6 -1.2 -1.3 -1.1 -0.9 -1.2 S- 13 -4.3 -2.9 -1.8 -4.6 -2.1 -2.5 -2.7 -3.4 -2.2 -3.7 -3.5 -2.6 -3.2 -3.9 -3.0 S- 9 3.2 4.0 5.4 3.7 4.1 3.3 3.8 4.8 3.2 3.4 4.3 4.3 3.9 4.2 4.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 2.20 2.33 2.26 2.03 2.14 2.24 71.81 69.39 2.41 71.02 68.69 2.33 -0.08 10 -0.86-0.44-0.56-1.06-1.16-1.21 72.15-0.34 72.15-1.12 -0.78 13 -3.04-2.98-2.73-3.13-3.22-3.16 74.61-2.80 74.11-3.09 -0.29 9 4.03 4.51 3.98 3.73 3.95 3.91 67.31 4.50 67.04 3.98 -0.51 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.58 1.47 1.28 1.43 0.89 1.57 1.45 1.08 1.20 10 1.30 1.15 1.11 1.40 1.12 1.01 13 1.48 1.32 0.97 1.49 1.05 1.08 9 1.42 1.45 0.88 1.53 1.02 1.16 Suggested regression eqns from two most closely related CDs ( 11 and 10): 0.95(F 11 - 68.69)(1.08) + 71.02 0.95(F 10 - 72.15)(1.12) + 71.02 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 13 0.896 0.858 0.848 0.847 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.0 73.9 74.3 75.1 77.3 75.2 74.6 74.7 75.4 72.5 76.4 75.5 75.8 73.5 72.9 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 13 78.1 76.5 76.3 79.3 79.1 77.4 76.7 78.1 77.6 75.8 79.3 77.0 77.8 76.8 75.6 S- 10 -1.1 -1.2 -0.1 -1.5 -0.2 -0.9 -1.3 -1.1 -1.4 -1.5 -0.8 -0.7 -0.7 -1.3 -1.1 S- 9 3.6 3.4 5.2 4.1 4.6 3.1 3.8 4.4 3.4 4.0 4.2 4.3 3.5 3.7 3.8 S- 11 2.2 2.2 3.2 1.5 3.7 2.6 3.0 2.5 2.8 2.3 2.5 3.4 2.8 2.0 2.2 S- 13 -3.0 -2.6 -1.9 -4.1 -1.7 -2.2 -2.2 -3.5 -2.2 -3.3 -3.0 -1.5 -2.0 -3.3 -2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.92-0.46-0.90-1.21-1.00-1.07 74.97 75.44-0.47 74.81 75.81-0.99 -0.52 9 4.01 4.49 3.87 3.77 4.04 3.84 70.51 4.46 70.87 3.94 -0.52 11 2.42 2.51 2.46 2.26 2.33 2.57 72.39 2.58 72.21 2.60 0.02 13 -2.67-2.64-2.49-2.78-2.84-2.55 77.48-2.51 77.42-2.61 -0.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.35 1.07 1.07 0.93 1.15 1.23 1.08 1.14 0.99 9 1.17 1.06 1.01 1.25 0.99 0.98 11 1.21 1.17 0.92 1.06 1.16 1.27 13 1.24 1.16 0.92 1.16 1.07 1.15 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.95(F 10 - 75.81)(1.14) + 74.81 0.93(F 9 - 70.87)(0.99) + 74.81 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 11 13 0.925 0.911 0.879 0.869 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 74.4 70.6 72.9 73.4 75.4 73.6 72.7 73.3 74.0 72.3 75.3 72.8 74.3 71.3 72.4 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 S- 10 -1.0 -2.0 -0.5 -1.4 -0.9 -1.0 -1.3 -1.0 -1.3 -1.5 -1.1 -0.8 -0.8 -1.8 -1.0 S- 9 4.2 3.1 4.4 3.6 4.5 2.8 3.7 4.2 3.8 4.0 4.1 4.5 4.0 3.7 4.6 S- 11 2.5 1.4 3.2 1.2 3.4 2.1 2.5 2.2 2.5 2.2 2.5 3.4 2.5 1.6 2.2 S- 13 -2.8 -3.5 -1.6 -3.8 -2.3 -2.5 -2.2 -3.6 -2.2 -3.1 -3.1 -1.6 -2.2 -3.8 -3.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -1.15-0.72-1.19-1.48-1.15-1.19 73.56 74.33-0.78 73.26 74.43-1.17 -0.39 9 3.93 4.28 3.76 3.75 3.82 4.11 69.36 4.20 69.30 3.96 -0.24 11 2.20 2.24 2.18 2.04 2.16 2.44 71.32 2.24 70.88 2.39 0.15 13 -2.80-2.68-2.80-2.94-2.87-2.69 76.22-2.67 76.00-2.74 -0.08 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.53 1.24 1.31 1.12 1.17 1.28 1.08 1.18 1.01 9 1.38 1.36 0.97 1.21 1.06 1.09 11 1.34 1.14 1.14 1.11 1.15 1.00 13 1.32 1.12 1.17 1.23 1.03 0.88 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.96(F 10 - 74.43)(1.18) + 73.26 0.95(F 9 - 69.30)(1.06) + 73.26 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 11 10 6 0.948 0.922 0.922 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 67.7 67.6 67.5 66.7 66.0 64.8 66.8 67.3 67.8 65.1 66.9 65.8 68.1 65.8 65.8 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 S- 9 4.0 3.3 3.8 3.5 4.1 3.5 4.2 4.2 4.3 4.1 3.6 4.5 4.0 3.7 4.6 S- 11 2.0 1.4 1.9 0.9 2.4 1.8 2.7 2.0 2.6 2.0 1.9 2.4 2.6 1.7 1.9 S- 10 -1.3 -1.7 -1.3 -1.8 -1.3 -1.3 -1.3 -1.2 -0.6 -1.0 -1.8 -0.6 -1.0 -1.5 -1.3 S- 6 3.2 4.0 4.0 3.1 4.8 3.6 4.8 4.9 4.0 5.1 5.0 4.3 4.0 3.3 4.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.84 4.14 3.75 3.53 3.77 4.12 67.25 63.15 4.10 66.65 62.70 3.96 -0.14 11 1.78 1.79 1.83 1.48 1.76 2.15 65.38 1.87 64.65 2.01 0.14 10 -1.39-1.04-1.37-1.96-1.36-1.11 68.22-0.97 67.92-1.26 -0.29 6 3.97 4.05 3.66 3.98 3.92 4.33 63.27 3.98 62.48 4.18 0.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.61 1.50 1.49 1.33 1.12 1.00 1.10 0.92 0.82 11 1.43 1.27 1.18 1.04 0.97 0.82 10 1.42 1.31 1.14 1.07 0.94 0.83 6 1.60 1.42 1.05 1.29 0.78 0.74 Suggested regression eqns from two most closely related CDs ( 9 and 11): 0.97(F 9 - 62.70)(0.92) + 66.65 0.96(F 11 - 64.65)(0.97) + 66.65 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 7 0.952 0.935 0.928 0.918 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 57.4 58.2 61.3 58.4 56.6 54.6 57.5 59.9 58.5 56.6 57.0 58.3 56.4 55.0 55.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 S- 9 3.8 4.2 3.8 3.6 3.9 3.5 4.1 4.7 5.1 3.6 3.3 4.1 4.4 3.9 4.4 S- 10 -2.0 -1.4 -1.7 -2.3 -1.9 -1.9 -2.2 -0.8 -0.7 -2.0 -3.1 -1.2 -1.8 -2.2 -2.1 S- 13 -3.5 -3.4 -3.6 -4.6 -3.3 -4.3 -3.6 -3.0 -1.9 -3.7 -4.5 -2.5 -3.3 -3.9 -3.7 S- 7 1.0 2.1 2.8 2.7 1.8 1.2 1.6 2.6 2.9 2.4 1.9 2.2 1.2 1.1 1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 3.83 4.00 3.82 3.55 3.76 4.10 57.72 53.73 3.99 57.43 53.41 4.02 0.03 10 -1.88-1.76-1.62-2.31-1.84-1.88 59.27-1.56 59.25-1.82 -0.26 13 -3.74-3.81-3.51-4.12-3.76-3.37 61.38-3.66 60.96-3.52 0.14 7 1.63 1.66 1.58 1.41 1.74 1.83 55.94 1.78 55.53 1.91 0.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.73 1.66 1.02 0.90 1.13 1.71 1.63 1.05 0.92 10 1.52 0.78 1.31 1.55 1.11 0.85 13 1.52 0.79 1.29 1.60 1.07 0.83 7 1.45 1.11 0.92 1.28 1.34 1.45 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.98(F 9 - 53.41)(1.05) + 57.43 0.97(F 10 - 59.25)(1.11) + 57.43 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 11 0.956 0.947 0.945 0.935 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 46.4 52.5 50.2 48.3 47.5 45.6 44.6 51.7 49.5 46.8 46.3 50.3 45.7 46.4 46.1 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 S- 9 4.2 4.8 4.4 3.8 4.0 4.4 5.3 5.0 5.1 3.9 3.4 4.0 4.7 3.8 3.8 S- 10 -2.3 -0.8 -2.3 -2.8 -1.5 -1.5 -1.9 -1.4 -1.2 -2.3 -3.2 -1.7 -1.8 -2.2 -2.5 S- 13 -4.4 -3.0 -4.6 -5.1 -3.3 -4.0 -4.7 -3.1 -2.9 -3.9 -4.5 -3.2 -3.9 -4.0 -3.9 S- 11 1.1 2.1 1.0 -0.4 1.5 1.6 1.9 2.5 2.4 1.4 0.6 1.4 1.9 0.6 1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.08 4.28 4.10 3.83 4.10 4.09 47.50 43.22 4.29 47.85 43.56 4.29 0.00 10 -2.08-1.92-1.94-2.40-2.01-2.14 49.29-1.79 49.82-1.97 -0.18 13 -4.18-4.26-4.18-4.35-4.23-3.75 51.66-4.16 51.75-3.90 0.26 11 1.17 1.27 1.18 0.99 1.11 1.38 46.20 1.30 46.46 1.39 0.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.06 2.15 1.36 1.54 0.88 2.35 2.26 1.04 1.18 10 1.96 1.43 0.95 2.11 1.11 1.17 13 1.84 1.31 1.03 2.05 1.14 1.11 11 2.00 1.44 0.94 2.26 1.04 1.11 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.98(F 9 - 43.56)(1.04) + 47.85 0.97(F 10 - 49.82)(1.11) + 47.85 Station#1877 ROANOKE/WOODRUM ARPT, va 4728505 lat/lon 79.97 37.32 0M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 13 11 0.948 0.946 0.943 0.943 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.4 41.4 41.8 39.9 40.5 42.2 39.7 45.0 42.8 41.4 37.9 44.2 37.3 38.9 39.1 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 S- 9 5.2 5.6 5.1 4.0 4.0 4.2 5.3 5.5 5.7 3.4 4.2 4.3 4.7 3.8 1.8 S- 10 -1.7 -1.2 -2.5 -2.6 -1.5 -1.2 -2.1 -1.0 -1.7 -2.8 -3.3 -2.2 -1.8 -2.8 -4.5 S- 13 -4.8 -3.7 -4.8 -5.5 -3.9 -4.1 -5.2 -3.0 -3.6 -4.7 -5.3 -3.6 -4.5 -5.7 -5.8 S- 11 1.1 2.5 1.6 -0.9 1.0 1.1 1.5 1.9 2.0 0.1 0.4 1.4 0.8 -0.3 -0.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 4.51 4.72 4.63 4.57 4.48 3.99 40.13 35.43 4.70 40.70 36.24 4.46 -0.24 10 -2.20-1.97-2.09-2.36-2.00-2.74 42.12-2.00 42.90-2.19 -0.20 13 -4.82-5.03-4.85-4.87-4.61-4.72 45.11-4.99 45.23-4.53 0.46 11 0.81 0.89 0.72 0.92 0.89 0.55 39.26 0.87 39.78 0.92 0.05 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.47 2.64 1.81 2.20 0.82 2.18 2.10 1.04 1.26 10 2.36 1.90 0.95 1.95 1.12 1.18 13 2.24 1.95 0.93 1.65 1.33 1.43 11 2.43 2.14 0.85 1.87 1.17 1.38 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.97(F 9 - 36.24)(1.04) + 40.70 0.97(F 10 - 42.90)(1.12) + 40.70 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.67 39.28 44.61 52.85 62.18 69.32 72.86 71.64 66.37 55.59 45.92 39.61 1952 38.92 40.67 45.00 53.11 63.87 71.51 74.82 71.26 63.60 54.99 45.72 40.66 1953 38.61 41.26 46.00 55.10 64.47 72.10 73.71 71.88 66.19 57.34 47.90 39.98 1954 38.13 39.69 47.69 53.59 63.05 68.09 73.18 72.81 67.97 57.24 45.44 36.44 1955 34.66 39.20 47.68 57.12 63.06 69.72 72.76 72.90 66.05 55.90 44.66 36.17 1956 34.91 38.46 45.20 52.70 61.81 69.23 72.41 70.43 64.40 55.32 49.62 41.96 1957 40.26 38.86 46.68 54.78 64.45 70.11 72.46 71.08 63.34 54.99 45.57 38.72 1958 32.70 32.28 39.99 51.26 61.46 68.81 72.16 71.73 64.70 56.99 45.05 37.71 1959 33.91 38.11 45.85 55.17 63.98 70.13 73.35 72.58 66.95 56.34 46.91 39.71 1960 36.49 33.45 40.73 49.65 62.88 67.75 72.24 71.28 65.92 56.93 44.99 35.69 1961 32.31 37.60 44.35 51.08 58.39 66.61 71.62 72.15 66.52 58.14 46.70 38.93 1962 35.10 36.57 42.82 52.85 62.57 68.50 70.15 68.28 64.19 54.55 43.79 34.00 1963 29.44 35.35 44.48 55.29 62.66 68.15 71.35 68.87 63.96 56.06 44.66 36.67 1964 31.68 37.14 43.64 54.11 63.02 69.81 72.23 70.20 62.71 55.06 46.28 40.23 1965 35.64 36.29 42.44 53.53 62.72 69.85 71.31 71.02 63.86 54.64 44.93 36.89 1966 32.35 34.10 40.73 50.34 58.57 67.31 70.94 69.12 61.04 51.96 41.81 37.21 1967 32.70 36.69 42.84 51.20 59.16 64.44 68.84 66.13 59.70 49.70 42.05 33.47 1968 29.96 32.85 41.86 51.67 59.52 66.37 71.52 69.96 63.63 54.30 44.14 35.93 1969 31.83 33.52 41.50 51.15 62.19 69.03 71.89 69.59 62.45 52.55 41.90 33.15 1970 30.40 32.84 41.34 51.48 61.83 68.85 71.69 71.62 65.52 56.43 45.37 36.76 1971 33.22 34.06 40.38 48.15 58.87 66.20 70.30 69.18 65.26 56.47 48.02 40.31 1972 36.70 36.82 42.07 50.97 58.51 65.40 69.08 69.31 62.15 52.64 44.41 38.58 1973 35.78 38.05 44.20 52.47 60.48 67.46 72.04 70.62 64.76 55.86 45.02 40.79 1974 37.39 40.74 44.10 52.71 59.76 65.93 69.34 68.14 61.06 51.87 43.20 38.02 1975 36.01 37.32 41.59 50.10 59.97 68.02 71.47 69.33 64.07 55.20 45.91 37.45 1976 35.80 39.86 47.03 52.37 59.65 65.79 69.33 67.24 59.65 49.32 38.99 29.78 1977 28.38 34.33 45.86 55.34 61.71 68.71 71.94 71.72 63.39 54.45 43.27 34.29 1978 26.88 28.42 37.98 49.58 60.06 66.55 71.64 71.01 63.91 54.62 44.51 37.52 1979 30.32 32.83 40.40 52.38 59.66 65.89 69.65 68.93 62.24 53.80 44.79 38.43 1980 32.89 33.86 40.27 50.57 60.13 67.87 72.35 72.41 64.51 53.75 42.53 34.57 1981 32.16 33.79 42.94 50.83 61.53 67.51 71.00 68.51 60.56 51.81 41.29 33.10 1982 30.75 34.07 41.98 51.10 59.77 67.81 69.44 67.35 60.13 52.12 44.92 38.04 1983 33.75 35.11 41.25 50.32 58.48 66.51 71.13 68.88 61.33 51.02 41.29 33.76 1984 32.55 34.55 41.75 49.17 59.94 67.16 70.79 67.92 63.84 53.55 47.43 37.39 1985 35.35 35.85 44.46 53.10 60.63 65.95 69.11 68.04 63.20 56.68 46.30 37.85 1986 32.83 36.17 43.97 52.41 61.37 68.06 71.10 70.06 63.54 55.46 44.97 36.09 1987 31.40 33.82 40.43 50.60 60.01 68.70 72.30 70.77 61.77 52.35 43.23 36.17 1988 32.48 34.29 42.23 50.71 58.62 66.65 71.39 69.68 60.45 50.23 40.94 37.49 1989 35.29 38.27 42.46 49.55 58.89 66.90 70.94 68.97 62.43 53.38 38.98 34.20 1990 33.53 42.08 46.08 51.98 59.25 66.48 70.26 69.10 62.99 55.09 46.84 39.86 1991 37.15 38.88 45.32 54.34 62.70 69.61 71.36 69.79 62.76 53.05 44.30 37.68 1992 36.23 37.46 43.48 49.88 57.49 64.82 68.66 68.42 60.64 52.37 42.40 37.69 1993 33.81 34.89 39.44 49.21 59.23 67.56 71.26 70.87 62.88 52.92 41.45 33.10 1994 30.39 33.92 43.80 50.99 60.62 66.62 70.95 68.04 60.09 52.72 44.67 39.45 1995 34.33 36.44 41.57 50.69 58.76 67.10 72.32 71.16 65.28 53.88 42.83 33.93 1996 31.64 33.59 41.13 50.17 61.26 67.35 70.55 68.52 62.84 52.58 43.96 36.57 1997 36.33 38.84 44.20 50.22 57.37 65.87 70.19 69.28 62.74 53.29 43.92 36.37 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 10 38 0.922 0.920 0.915 0.907 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 33.8 32.5 35.3 32.8 31.4 32.5 35.3 33.5 37.2 36.2 33.8 30.4 34.3 31.6 36.3 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 S- 9 -1.5 1.2 2.5 1.3 -1.0 0.3 0.8 -0.2 0.8 0.5 -0.1 0.1 0.2 1.0 0.9 S- 13 -9.5 -9.2 -8.1 -9.7-10.1 -8.4 -9.0-11.1 -8.7 -9.7 -9.1-10.7 -9.3 -9.2 -8.4 S- 10 -6.9 -6.0 -4.9 -6.1 -6.9 -5.7 -5.4 -7.4 -6.3 -6.5 -6.5 -7.2 -7.1 -5.6 -5.5 S- 38 -4.3 0.1 1.7 -0.7 -3.6 -1.5 -1.3 -2.3 -0.5 -2.0 -1.7 -1.7 -1.8 -0.9 -1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.44 2.76 1.76 1.28 0.62 0.48 35.30 32.62 2.68 33.80 33.35 0.46 -2.22 13 -8.77-7.40-8.72-9.22-9.34-9.31 42.99-7.69 43.16-9.36 -1.66 10 -5.45-3.85-5.30-5.96-6.03-6.38 39.40-4.10 40.07-6.27 -2.17 38 -0.57 0.45-0.30-0.48-1.38-1.37 34.82 0.48 35.24-1.43 -1.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.86 2.89 2.90 2.99 0.97 1.91 1.85 1.03 1.07 13 2.54 2.78 1.04 1.66 1.15 1.10 10 2.48 2.49 1.16 1.82 1.05 0.90 38 3.07 3.13 0.92 2.04 0.94 1.01 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.96(F 9 - 33.35)(1.03) + 33.80 0.96(F 13 - 43.16)(1.15) + 33.80 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 50 0.943 0.931 0.926 0.917 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.1 34.5 35.8 36.2 33.8 34.3 38.3 42.1 38.9 37.5 34.9 33.9 36.4 33.6 38.8 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2 S- 10 -6.7 -6.1 -5.1 -6.3 -6.4 -5.5 -5.2 -6.1 -6.1 -6.2 -6.7 -6.9 -6.5 -5.8 -5.4 S- 13 -9.3-10.5 -8.8-10.5-10.1 -8.8 -9.4 -9.3 -9.1 -9.7 -9.9-11.4 -9.6 -9.8-10.1 S- 9 -0.9 0.7 2.4 0.3 -1.5 0.3 0.1 0.1 0.9 0.4 -0.3 0.8 0.4 0.8 1.0 S- 50 -6.8 -6.1 -3.4 -7.5 -9.4 -6.0 -6.5 -5.9 -5.5 -6.7 -6.8 -7.0 -7.0 -6.2 -6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -5.38-4.20-5.08-5.78-5.89-6.21 37.61 41.89-4.28 36.28 42.35-6.07 -1.80 13 -9.18-8.08-8.82-9.61-9.68-9.94 45.76-8.15 46.03-9.75 -1.60 9 1.26 2.49 1.57 1.13 0.34 0.55 35.21 2.40 35.92 0.36 -2.05 50 -5.72-4.77-5.34-5.68-6.56-6.50 42.38-4.77 42.76-6.48 -1.71 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.80 2.45 2.43 2.14 1.14 2.33 2.25 1.04 0.91 13 2.57 2.47 0.98 2.21 1.06 1.07 9 2.79 2.46 0.99 2.36 0.99 1.00 50 3.00 2.97 0.82 2.32 1.01 1.23 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.97(F 10 - 42.35)(1.04) + 36.28 0.97(F 13 - 46.03)(1.06) + 36.28 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.906 0.875 0.873 0.853 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.3 41.8 44.5 44.0 40.4 42.2 42.5 46.1 45.3 43.5 39.4 43.8 41.6 41.1 44.2 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 10 -6.1 -5.9 -5.9 -5.6 -5.9 -5.3 -5.5 -6.2 -5.9 -5.6 -6.7 -6.4 -7.0 -5.2 -5.2 S- 13 -8.8 -9.6 -9.3-10.3 -9.5 -8.9 -9.8 -9.3 -9.5 -9.0 -9.6-10.2-11.0 -8.9 -9.5 S- 9 -0.6 0.3 0.8 -0.1 -1.5 0.3 0.3 -0.1 0.1 0.3 -0.5 0.2 -0.6 1.3 0.8 S- 38 -3.2 -2.2 -1.4 -3.0 -5.1 -1.6 -2.4 -2.2 -2.6 -2.7 -2.6 -1.8 -3.5 -0.5 -1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -5.11-3.93-4.58-5.53-5.77-6.02 44.48 48.40-3.92 42.77 48.67-5.90 -1.98 13 -8.89-7.54-8.61-9.33-9.52-9.67 52.13-7.65 52.32-9.54 -1.90 9 0.95 2.41 1.21 0.63 0.04 0.24 42.19 2.29 42.70 0.07 -2.22 38 -1.68-0.22-1.56-2.03-2.58-2.17 44.93-0.45 45.19-2.42 -1.97 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.28 1.97 2.19 1.95 1.12 1.82 1.80 1.01 0.90 13 1.96 2.04 1.08 1.92 0.95 0.88 9 2.04 2.10 1.04 1.69 1.08 1.03 38 2.21 2.29 0.96 1.81 1.01 1.05 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.95(F 10 - 48.67)(1.01) + 42.77 0.94(F 13 - 52.32)(0.95) + 42.77 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 9 38 0.831 0.828 0.800 0.791 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.3 49.2 53.1 52.4 50.6 50.7 49.5 52.0 54.3 49.9 49.2 51.0 50.7 50.2 50.2 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 S- 10 -5.1 -5.1 -6.1 -5.3 -5.4 -5.0 -5.7 -5.9 -5.6 -5.2 -6.4 -6.3 -6.6 -4.7 -4.8 S- 13 -7.8 -8.8 -8.7 -8.8 -8.8 -8.2 -9.0 -9.0 -8.5 -8.1 -8.7 -9.4-10.8 -8.4 -8.8 S- 9 0.6 0.9 -0.6 -0.3 -1.4 -0.3 -0.5 -0.2 -0.8 -0.1 -0.6 0.4 -0.9 1.0 1.4 S- 38 -1.8 -1.2 -3.4 -3.0 -4.9 -2.5 -3.4 -2.2 -3.7 -2.9 -2.6 -1.8 -3.7 -1.4 -1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -4.59-3.39-3.80-5.04-5.39-5.66 53.48 56.76-3.29 50.89 56.44-5.55 -2.26 13 -7.98-6.73-7.50-8.35-8.68-8.94 60.19-6.71 59.67-8.78 -2.07 9 0.80 2.39 1.19 0.30-0.16 0.07 51.18 2.30 50.97-0.08 -2.37 38 -1.91-0.39-1.68-2.37-2.84-2.43 54.02-0.55 53.51-2.62 -2.08 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.95 1.52 1.84 1.54 1.20 1.42 1.62 0.88 0.73 13 1.53 1.59 1.16 1.57 0.91 0.78 9 1.68 1.70 1.08 1.83 0.78 0.72 38 1.82 1.74 1.06 2.05 0.69 0.65 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.91(F 10 - 56.44)(0.88) + 50.89 0.91(F 13 - 59.67)(0.91) + 50.89 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 38 56 0.854 0.838 0.815 0.815 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.5 59.9 60.6 61.4 60.0 58.6 58.9 59.3 62.7 57.5 59.2 60.6 58.8 61.3 57.4 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1 S- 13 -6.9 -6.7 -8.4 -8.6 -8.1 -7.9 -7.7 -8.6 -7.2 -7.7 -8.3 -7.7 -9.4 -6.8 -6.5 S- 11 -1.5 -1.5 -2.5 -2.9 -3.3 -2.8 -1.7 -2.8 -2.4 -2.7 -2.7 -2.1 -3.6 -1.3 -1.2 S- 38 -1.8 -1.9 -3.2 -3.3 -4.3 -3.5 -1.9 -2.4 -4.1 -3.0 -2.5 -2.3 -3.8 -1.2 -1.0 S- 56 -7.9 -7.9 -9.1 -9.4 -9.3 -9.6 -8.8 -9.7 -8.2 -9.1 -8.6 -8.5-10.6 -7.6 -7.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -7.01-5.98-6.50-7.24-7.89-7.65 62.70 68.64-5.93 59.64 67.41-7.77 -1.83 11 -1.67-0.39-1.58-1.86-2.42-2.27 63.26-0.56 61.96-2.32 -1.76 38 -1.97-0.69-1.85-2.26-2.68-2.54 63.55-0.84 62.31-2.67 -1.83 56 -8.15-7.05-7.75-8.52-8.96-8.62 69.76-7.05 68.44-8.80 -1.75 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 1.88 1.50 1.43 1.36 1.06 1.44 1.66 0.87 0.82 11 1.51 1.45 0.99 1.64 0.87 0.88 38 1.68 1.64 0.87 1.97 0.73 0.83 56 1.46 1.32 1.09 1.53 0.94 0.86 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.92(F 13 - 67.41)(0.87) + 59.64 0.92(F 11 - 61.96)(0.87) + 59.64 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 9 50 0.835 0.828 0.808 0.795 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.5 67.2 65.9 68.1 68.7 66.7 66.9 66.5 69.6 64.8 67.6 66.6 67.1 67.3 65.9 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 50 71.2 71.0 72.3 74.4 75.0 72.4 70.6 71.5 74.4 70.3 73.2 71.0 72.0 72.7 69.8 S- 38 -2.6 -1.3 -3.3 -3.7 -3.6 -3.3 -1.2 -2.2 -3.4 -2.4 -2.8 -2.4 -2.7 -2.1 -1.2 S- 11 -1.6 -0.5 -2.6 -2.8 -2.4 -1.3 -0.3 -2.1 -1.4 -2.0 -2.8 -1.4 -1.6 -1.8 -0.6 S- 9 0.4 1.0 -0.7 -0.5 -0.9 -0.5 0.5 0.1 -0.8 -0.3 -0.7 0.0 -0.1 0.8 1.4 S- 50 -4.7 -3.9 -6.3 -6.4 -6.3 -5.7 -3.7 -5.0 -4.8 -5.5 -5.6 -4.4 -4.9 -5.3 -3.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -1.92-1.02-1.54-2.20-2.57-2.42 69.31 70.33-1.02 67.02 69.57-2.55 -1.53 11 -0.99-0.09-0.57-1.11-1.75-1.64 69.39-0.08 68.69-1.67 -1.59 9 0.83 2.09 1.15 0.59 0.06 0.04 67.31 2.00 67.04-0.02 -2.02 50 -4.45-3.63-3.99-4.73-5.13-4.92 72.92-3.61 72.11-5.09 -1.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.66 1.56 1.37 1.61 0.85 1.13 1.65 0.68 0.81 11 1.47 1.43 0.96 1.45 0.78 0.81 9 1.42 1.45 0.94 1.53 0.74 0.79 50 1.56 1.61 0.85 1.53 0.74 0.87 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.91(F 38 - 69.57)(0.68) + 67.02 0.91(F 11 - 68.69)(0.78) + 67.02 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 50 39 0.818 0.786 0.762 0.743 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.1 70.8 69.1 71.1 72.3 71.4 70.9 70.3 71.4 68.7 71.3 70.9 72.3 70.6 70.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 50 76.7 74.9 75.1 76.9 77.5 77.2 74.6 75.7 76.3 73.1 77.3 75.2 76.5 74.8 74.2 cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0 S- 38 -4.1 -2.5 -2.8 -3.0 -2.4 -3.4 -1.9 -2.3 -3.1 -1.7 -3.0 -2.5 -3.0 -1.8 -1.6 S- 11 -1.7 -0.9 -2.0 -2.5 -1.4 -1.2 -0.6 -1.9 -1.3 -1.5 -2.6 -1.1 -0.8 -0.9 -0.5 S- 50 -5.6 -4.1 -6.0 -5.8 -5.2 -5.8 -3.7 -5.5 -5.0 -4.5 -6.0 -4.3 -4.2 -4.2 -4.0 S- 39 -6.5 -4.8 -5.2 -5.0 -4.7 -5.6 -3.5 -4.4 -5.5 -4.1 -5.7 -4.2 -4.7 -3.9 -3.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -1.96-1.26-1.43-2.13-2.71-2.38 72.44 73.63-1.19 70.82 73.43-2.61 -1.42 11 -0.74-0.01-0.20-0.73-1.65-1.25 72.39 0.05 72.21-1.39 -1.44 50 -4.33-3.85-3.70-4.40-5.17-4.60 76.17-3.73 75.74-4.92 -1.20 39 -4.07-3.19-3.44-4.45-4.87-4.57 75.64-3.20 75.60-4.78 -1.58 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.33 1.33 1.08 1.30 0.83 0.96 1.39 0.69 0.83 11 1.21 1.17 0.92 1.06 0.90 0.98 50 1.51 1.63 0.66 1.25 0.77 1.16 39 1.46 1.50 0.72 1.40 0.69 0.95 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.90(F 38 - 73.43)(0.69) + 70.82 0.89(F 11 - 72.21)(0.90) + 70.82 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 38 9 13 0.851 0.840 0.815 0.802 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.9 67.9 68.0 70.1 70.8 69.7 69.0 69.1 69.8 68.4 70.9 68.0 71.2 68.5 69.3 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 13 77.2 74.1 74.5 77.2 77.7 76.1 74.9 76.9 76.2 75.4 78.3 74.4 76.6 75.1 75.4 S- 11 -3.0 -1.2 -1.6 -2.2 -1.2 -1.8 -1.2 -2.0 -1.7 -1.7 -1.9 -1.4 -0.7 -1.2 -0.9 S- 38 -5.4 -2.5 -2.9 -2.9 -2.0 -3.7 -2.4 -2.4 -2.6 -1.4 -1.9 -2.3 -2.1 -1.9 -1.4 S- 9 -1.3 0.4 -0.4 0.2 -0.1 -1.0 -0.1 0.0 -0.4 0.1 -0.3 -0.3 0.8 0.9 1.5 S- 13 -8.3 -6.2 -6.5 -7.1 -6.9 -6.4 -6.0 -7.8 -6.4 -7.0 -7.4 -6.4 -5.4 -6.6 -6.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -0.96-0.10-0.48-1.14-1.86-1.35 71.21 71.32-0.11 69.30 70.88-1.58 -1.46 38 -2.00-1.29-1.54-2.21-2.99-1.97 72.45-1.24 71.83-2.53 -1.30 9 0.78 1.95 1.11 0.57-0.20 0.31 69.36 1.85 69.30 0.00 -1.85 13 -5.96-5.01-5.46-6.11-6.89-6.48 76.22-5.02 76.00-6.70 -1.69 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.61 1.34 1.29 1.14 1.12 1.03 1.11 0.92 0.82 38 1.54 1.41 0.91 1.33 0.77 0.84 9 1.38 1.36 0.95 1.21 0.85 0.90 13 1.32 1.12 1.15 1.23 0.83 0.72 Suggested regression eqns from two most closely related CDs ( 11 and 38): 0.92(F 11 - 70.88)(0.92) + 69.30 0.92(F 38 - 71.83)(0.77) + 69.30 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 38 9 0.843 0.833 0.818 0.815 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.3 63.8 63.2 63.5 61.8 60.5 62.4 63.0 62.8 60.6 62.9 60.1 65.3 62.8 62.7 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 S- 11 -4.4 -2.4 -2.4 -2.3 -1.8 -2.6 -1.7 -2.3 -2.5 -2.5 -2.1 -3.3 -0.3 -1.2 -1.1 S- 13 -9.4 -7.2 -7.1 -6.9 -7.2 -7.8 -6.9 -8.1 -6.9 -7.3 -7.6 -7.8 -5.3 -5.8 -6.3 S- 38 -6.3 -3.0 -2.9 -2.6 -2.2 -3.6 -2.3 -2.2 -3.1 -2.1 -1.5 -3.7 -1.2 -1.9 -1.2 S- 9 -2.4 -0.5 -0.5 0.3 -0.1 -0.9 -0.2 -0.2 -0.7 -0.4 -0.4 -1.2 1.1 0.8 1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -1.47-0.24-0.98-1.74-2.62-1.86 65.12 65.38-0.27 62.45 64.65-2.20 -1.93 13 -6.40-5.15-5.91-6.73-7.61-6.71 70.25-5.13 69.62-7.17 -2.04 38 -2.03-0.90-1.65-2.26-3.25-2.11 66.08-0.96 65.11-2.66 -1.70 9 0.60 2.11 0.93 0.31-0.61 0.11 63.15 1.96 62.70-0.25 -2.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.02 1.43 1.49 1.27 1.18 1.34 1.04 1.29 1.10 13 1.44 1.41 1.06 1.10 1.22 1.15 38 1.65 1.37 1.09 1.31 1.02 0.94 9 1.50 1.33 1.12 1.10 1.23 1.09 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.92(F 11 - 64.65)(1.29) + 62.45 0.91(F 13 - 69.62)(1.22) + 62.45 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 8 5 11 0.795 0.777 0.772 0.756 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 51.0 53.5 56.7 55.5 52.3 50.2 53.4 55.1 53.0 52.4 52.9 52.7 53.9 52.6 53.3 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 S- 13 -9.9 -8.0 -8.3 -7.6 -7.5 -8.6 -7.7 -7.7 -7.4 -7.9 -8.6 -8.1 -5.8 -6.4 -6.2 S- 8 -0.2 2.7 3.4 4.9 2.7 1.6 2.9 2.7 2.4 2.9 3.0 1.6 3.9 3.1 3.8 S- 5 0.3 3.5 4.9 6.1 3.5 2.0 4.1 3.9 3.2 4.0 4.7 1.8 5.1 4.4 5.0 S- 11 -4.8 -3.0 -3.4 -3.1 -2.1 -3.4 -1.9 -2.1 -2.9 -2.8 -3.0 -3.5 -0.2 -1.5 -0.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -6.85-5.27-6.37-7.36-8.17-7.20 56.01 61.38-5.37 53.24 60.96-7.72 -2.35 8 3.46 5.05 3.42 3.30 2.43 2.97 51.17 4.84 50.48 2.76 -2.07 5 4.31 5.54 4.05 4.46 3.38 4.02 50.65 5.36 49.48 3.76 -1.60 11 -1.69 0.02-1.26-2.18-3.03-2.11 56.22-0.21 55.81-2.57 -2.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.07 1.52 1.08 0.79 1.35 1.57 1.60 0.98 0.72 8 1.60 1.18 0.91 1.16 1.35 1.48 5 1.65 1.17 0.92 1.17 1.34 1.46 11 1.62 0.81 1.33 1.72 0.91 0.69 Suggested regression eqns from two most closely related CDs ( 13 and 8): 0.89(F 13 - 60.96)(0.98) + 53.24 0.88(F 8 - 50.48)(1.35) + 53.24 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 5 9 8 0.801 0.794 0.784 0.783 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.3 47.4 46.3 45.0 43.2 40.9 39.0 46.8 44.3 42.4 41.5 44.7 42.8 44.0 43.9 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 5 37.5 42.1 38.9 39.3 39.3 37.6 34.4 42.2 40.1 38.3 37.8 42.1 37.0 39.0 38.9 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2 S- 13 -9.4 -8.1 -8.5 -8.4 -7.5 -8.7-10.3 -7.9 -8.1 -8.3 -9.3 -8.8 -6.8 -6.5 -6.0 S- 5 3.8 5.3 7.4 5.7 3.9 3.3 4.6 4.7 4.2 4.1 3.7 2.6 5.8 5.0 5.1 S- 9 -0.9 -0.2 0.5 0.5 -0.3 -0.3 -0.4 0.1 -0.1 -0.4 -1.4 -1.7 1.8 1.3 1.7 S- 8 2.4 3.9 5.5 4.6 3.0 2.3 3.2 3.0 2.8 3.0 2.2 2.0 4.5 3.6 3.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -7.30-5.61-7.04-7.70-8.58-7.68 45.88 51.66-5.79 43.57 51.75-8.18 -2.40 5 5.24 6.58 5.10 5.41 4.51 4.35 39.50 6.37 38.96 4.61 -1.76 9 0.96 2.93 1.25 0.49-0.26 0.16 43.22 2.66 43.56 0.00 -2.66 8 4.15 5.91 4.15 4.00 3.24 3.12 40.25 5.62 40.25 3.32 -2.31 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.21 1.84 1.41 1.31 1.08 2.26 2.05 1.10 1.02 5 2.14 1.58 0.90 2.03 1.11 1.24 9 2.15 1.54 0.92 2.26 1.00 1.09 8 2.13 1.66 0.85 2.02 1.12 1.31 Suggested regression eqns from two most closely related CDs ( 13 and 5): 0.90(F 13 - 51.75)(1.10) + 43.57 0.89(F 5 - 38.96)(1.11) + 43.57 Station#1878 STAUNTON/SEWAGE PLAN, va 4806205 lat/lon 79.07 38.15 32M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 9 11 10 0.902 0.872 0.870 0.870 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 33.8 37.4 37.8 36.1 36.2 37.5 34.2 39.9 37.7 37.7 33.1 39.5 33.9 36.6 36.4 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 S- 13 -9.4 -7.7 -8.7 -9.3 -8.2 -8.9-10.7 -8.1 -8.8 -8.4-10.1 -8.3 -7.9 -8.0 -8.4 S- 9 0.5 1.6 1.2 0.2 -0.3 -0.5 -0.1 0.3 0.5 -0.3 -0.6 -0.4 1.3 1.4 -0.9 S- 11 -3.5 -1.5 -2.3 -4.7 -3.3 -3.7 -3.9 -3.2 -3.2 -3.6 -4.4 -3.3 -2.6 -2.7 -3.3 S- 10 -6.4 -5.2 -6.4 -6.4 -5.9 -5.9 -7.5 -6.1 -6.9 -6.6 -8.1 -6.9 -5.2 -5.2 -7.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -8.01-6.72-7.83-8.27-8.83-8.57 38.22 45.11-6.89 36.51 45.23-8.72 -1.84 9 1.32 3.02 1.65 1.18 0.26 0.15 35.43 2.79 36.24 0.26 -2.53 11 -2.38-0.81-2.26-2.48-3.33-3.30 39.26-1.03 39.78-3.28 -2.24 10 -5.39-3.67-5.07-5.76-6.22-6.58 42.12-3.90 42.90-6.39 -2.49 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.50 2.24 2.13 1.95 1.09 1.96 1.65 1.19 1.09 9 2.64 2.20 0.97 2.10 0.93 0.96 11 2.43 2.14 0.99 1.87 1.05 1.06 10 2.36 1.90 1.12 1.95 1.01 0.90 Suggested regression eqns from two most closely related CDs ( 13 and 9): 0.95(F 13 - 45.23)(1.19) + 36.51 0.93(F 9 - 36.24)(0.93) + 36.51 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 42.24 43.77 48.38 55.67 64.95 72.57 76.89 75.66 70.16 60.06 51.03 44.79 1952 43.65 44.81 49.94 57.54 67.72 74.74 78.44 76.12 67.96 58.91 49.06 45.36 1953 43.56 46.71 51.14 59.97 67.85 74.76 76.50 75.21 69.18 60.05 51.31 44.26 1954 43.35 45.11 52.43 57.82 66.31 71.42 76.04 75.70 70.79 60.82 49.34 40.54 1955 38.47 43.12 51.37 60.08 66.11 72.76 76.67 77.06 70.08 59.63 47.71 39.77 1956 38.79 42.76 49.28 55.71 64.98 72.47 76.29 74.39 68.91 59.94 53.79 45.72 1957 44.19 43.02 51.04 58.58 68.44 73.70 76.28 75.14 67.78 59.97 50.24 43.31 1958 38.14 37.89 45.48 55.55 64.63 72.34 76.01 75.34 68.35 60.33 49.12 41.77 1959 38.37 42.87 50.09 58.68 67.77 73.95 77.21 76.28 71.26 61.61 52.25 44.85 1960 42.16 40.34 47.65 56.24 68.48 73.06 76.94 75.73 70.21 61.06 49.25 40.84 1961 38.47 44.08 50.52 57.05 63.70 72.16 76.62 77.29 70.66 62.27 51.09 43.82 1962 40.25 41.77 48.33 57.61 67.21 73.23 75.40 73.62 69.07 59.75 49.20 40.41 1963 36.21 41.47 49.17 58.45 65.37 71.51 75.69 73.82 68.10 59.81 48.92 42.76 1964 38.92 43.97 49.00 58.02 66.54 73.15 75.52 73.99 67.00 60.16 51.87 46.11 1965 41.99 41.74 46.99 56.73 65.88 73.10 75.31 75.64 69.72 61.00 51.32 43.37 1966 39.60 41.11 47.99 56.23 64.36 72.16 75.97 75.21 68.50 59.98 50.17 44.88 1967 41.25 43.99 49.41 56.78 64.55 70.29 74.86 73.05 67.06 57.28 49.92 42.05 1968 38.58 40.92 48.09 57.65 65.55 72.59 77.47 76.02 70.58 61.65 51.12 42.68 1969 38.38 40.21 47.70 56.64 67.21 73.62 76.70 74.59 68.68 59.50 49.43 40.25 1970 37.58 39.60 47.76 56.93 66.80 73.29 76.56 76.38 71.64 62.92 52.73 43.66 1971 40.99 41.62 48.10 55.13 65.22 72.42 76.24 75.26 71.67 63.00 55.60 48.17 1972 45.17 44.19 48.32 56.07 63.62 70.64 74.71 74.70 68.31 59.78 52.48 45.95 1973 42.55 44.13 50.61 59.06 66.98 73.41 77.53 76.79 71.86 63.54 53.82 49.05 1974 45.84 48.48 52.48 60.06 66.53 72.13 75.54 74.99 68.25 59.64 51.10 46.89 1975 45.09 46.42 49.62 57.27 66.32 73.82 77.69 76.57 71.91 63.92 54.29 46.08 1976 44.13 47.55 54.95 60.03 66.95 72.38 75.69 74.30 67.20 56.96 46.71 37.45 1977 36.48 41.52 52.91 61.36 67.82 73.83 77.48 77.72 70.23 61.55 50.77 43.25 1978 36.25 37.73 45.01 55.72 65.04 71.42 76.53 76.36 70.74 62.43 52.83 45.95 1979 39.01 41.12 47.64 58.54 65.05 71.02 74.80 75.27 69.36 61.34 51.64 44.58 1980 38.28 39.56 46.75 57.66 66.68 73.04 76.07 75.24 67.21 56.94 46.26 38.11 1981 37.25 39.78 49.94 56.73 67.39 73.69 77.26 74.65 67.47 59.07 48.78 40.61 1982 38.16 41.86 49.16 58.00 65.40 72.45 73.57 71.86 65.66 59.03 52.71 46.32 1983 42.12 43.16 48.55 56.94 64.40 72.47 76.75 76.01 70.43 61.73 51.60 42.34 1984 40.54 42.41 49.50 56.39 66.44 73.07 76.44 73.81 70.46 60.71 54.21 42.95 1985 40.29 40.92 50.83 59.88 67.39 72.38 75.00 74.56 70.32 64.81 54.13 45.06 1986 39.41 42.89 49.59 57.86 66.72 74.73 77.56 75.98 69.86 62.55 53.24 44.68 1987 39.74 40.99 46.99 56.82 66.47 74.86 78.24 77.31 68.89 60.53 51.21 44.46 1988 40.69 42.20 49.42 57.68 65.27 72.28 76.46 75.61 67.71 58.74 49.13 45.73 1989 42.27 44.98 49.10 56.88 66.35 73.25 76.21 73.76 67.22 58.40 46.01 42.23 1990 42.71 50.19 54.05 59.39 65.95 73.05 75.87 74.59 69.54 62.63 55.17 47.87 1991 45.44 47.19 53.20 61.86 69.52 76.34 78.33 76.95 70.22 60.99 52.62 46.17 1992 44.16 45.13 50.68 56.54 64.19 71.50 75.55 75.70 68.22 61.08 51.70 46.80 1993 42.24 43.39 47.70 57.31 66.47 75.09 78.52 77.92 70.53 61.91 51.04 42.84 1994 39.61 42.61 50.63 56.25 64.40 70.43 75.25 74.17 68.28 61.98 54.73 49.14 1995 44.26 45.16 50.67 59.13 66.97 73.97 78.05 76.85 71.23 60.81 50.07 40.97 1996 39.03 41.35 48.78 57.11 66.99 72.90 75.91 74.82 69.53 59.82 51.52 44.61 1997 44.79 46.78 51.63 57.09 63.53 71.36 75.69 75.53 69.76 60.86 51.42 43.74 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.953 0.921 0.918 0.900 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.1 40.5 40.3 39.4 39.7 40.7 42.3 42.7 45.4 44.2 42.2 39.6 44.3 39.0 44.8 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 12 46.4 45.2 46.5 45.9 45.0 44.3 47.6 47.7 49.7 48.6 46.9 44.9 47.2 44.5 48.3 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 S- 10 1.4 2.0 0.0 0.5 1.4 2.5 1.6 1.8 2.0 1.4 1.9 2.1 2.8 1.8 3.0 S- 9 6.9 9.2 7.4 7.9 7.3 8.5 7.8 9.0 9.1 8.4 8.4 9.3 10.1 8.4 9.4 S- 12 -4.3 -4.7 -6.2 -6.5 -5.3 -3.6 -5.3 -5.0 -4.2 -4.5 -4.7 -5.3 -2.9 -5.5 -3.5 S- 7 5.9 7.8 5.5 7.1 6.6 7.8 7.3 8.1 8.0 7.8 7.9 9.2 8.5 7.6 8.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.59 0.92 1.68 2.08 1.28 2.14 40.58 39.40 1.19 41.82 40.07 1.75 0.56 9 8.47 7.52 8.74 9.32 7.93 9.01 32.62 7.96 33.35 8.47 0.51 12 -4.97-5.44-4.90-4.69-5.27-4.36 45.96-5.38 46.58-4.76 0.62 7 7.48 6.54 7.76 8.24 6.89 8.16 33.45 7.13 34.28 7.54 0.41 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.68 2.48 2.47 2.49 0.99 2.04 1.82 1.12 1.13 9 2.89 2.99 0.82 1.85 1.11 1.34 12 2.62 2.72 0.91 1.56 1.31 1.45 7 2.52 2.68 0.92 2.00 1.02 1.11 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 40.07)(1.12) + 41.82 0.96(F 9 - 33.35)(1.11) + 41.82 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.964 0.933 0.927 0.921 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.2 42.4 40.9 42.9 41.0 42.2 45.0 50.2 47.2 45.1 43.4 42.6 45.2 41.3 46.8 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 S- 10 1.4 1.8 0.0 0.4 0.7 2.4 1.5 2.0 2.2 1.5 1.8 1.8 2.2 1.9 2.6 S- 12 -3.9 -5.3 -6.5 -6.6 -5.5 -3.6 -5.9 -4.3 -4.0 -4.6 -5.0 -6.4 -3.6 -5.6 -5.2 S- 9 7.1 8.6 7.5 7.0 5.7 8.2 6.8 8.2 9.2 8.1 8.2 9.4 9.1 8.5 8.9 S- 13 -1.2 -2.7 -3.8 -3.8 -2.9 -0.9 -2.7 -1.2 -0.8 -2.0 -1.4 -2.7 -0.8 -2.0 -2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.43 0.72 1.52 1.82 1.25 2.01 42.90 41.89 1.00 43.96 42.35 1.61 0.60 12 -5.27-5.83-5.07-5.08-5.34-4.91 48.54-5.65 49.03-5.07 0.57 9 8.07 7.40 8.16 8.73 7.48 8.78 35.21 7.68 35.92 8.04 0.35 13 -2.37-3.17-2.23-2.01-2.54-1.71 45.76-2.87 46.03-2.07 0.80 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.63 2.45 2.05 2.14 0.96 2.52 2.25 1.12 1.17 12 2.68 2.35 0.87 2.27 1.11 1.28 9 2.79 2.46 0.83 2.36 1.07 1.28 13 2.57 2.47 0.83 2.21 1.14 1.38 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.98(F 10 - 42.35)(1.12) + 43.96 0.97(F 12 - 49.03)(1.11) + 43.96 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.951 0.908 0.894 0.892 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.5 49.5 50.8 49.6 47.0 49.4 49.1 54.0 53.2 50.7 47.7 50.6 50.7 48.8 51.6 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 S- 10 1.2 1.9 0.4 0.0 0.7 1.9 1.1 1.8 2.0 1.6 1.5 0.4 2.1 2.4 2.3 S- 9 6.7 8.0 7.2 5.5 5.1 7.5 6.9 7.9 8.0 7.5 7.8 7.1 8.5 8.9 8.3 S- 12 -3.8 -4.5 -5.1 -6.9 -4.8 -3.7 -5.6 -4.1 -4.2 -4.0 -4.1 -6.1 -4.3 -3.9 -4.9 S- 7 5.7 7.5 5.6 6.5 4.4 6.8 6.9 7.6 7.3 8.0 7.6 7.6 8.1 7.5 7.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.33 0.81 1.32 1.72 1.19 1.74 49.39 48.40 0.99 50.09 48.67 1.42 0.42 9 7.39 7.15 7.11 7.88 6.99 8.01 42.19 7.20 42.70 7.39 0.19 12 -4.78-5.01-5.00-4.43-4.87-4.52 54.41-5.03 54.77-4.68 0.34 7 6.87 6.27 6.98 7.31 6.40 7.61 42.80 6.59 43.14 6.95 0.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.06 1.97 1.78 1.95 0.91 1.84 1.80 1.02 1.12 9 2.04 2.10 0.85 1.69 1.09 1.29 12 1.96 1.90 0.94 2.02 0.91 0.97 7 1.89 1.67 1.07 1.66 1.11 1.04 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 48.67)(1.02) + 50.09 0.95(F 9 - 42.70)(1.09) + 50.09 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 9 0.889 0.855 0.841 0.832 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.9 56.4 59.9 57.9 56.8 57.7 56.9 59.4 61.9 56.5 57.3 56.3 59.1 57.1 57.1 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 S- 10 1.5 2.1 0.7 0.2 0.9 2.0 1.7 1.5 2.0 1.4 1.7 -1.0 1.8 2.2 2.1 S- 7 5.6 7.2 5.1 4.2 4.1 5.8 6.0 6.5 6.3 6.6 6.4 4.3 6.7 7.1 6.3 S- 12 -3.2 -4.2 -3.8 -5.1 -3.7 -3.0 -4.0 -3.9 -3.3 -3.4 -2.8 -6.4 -4.4 -3.7 -4.6 S- 9 7.2 8.1 6.2 5.2 4.8 6.7 6.9 7.2 6.8 6.5 7.5 5.7 7.5 7.9 8.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.21 0.67 1.14 1.59 1.29 1.45 57.58 56.76 0.82 57.81 56.44 1.37 0.56 7 5.81 5.44 5.90 6.04 5.56 6.26 52.01 5.57 51.92 5.88 0.31 12 -4.09-4.40-4.28-3.74-3.91-4.11 61.92-4.34 61.78-3.97 0.37 9 6.61 6.44 6.13 6.92 6.52 7.18 51.18 6.40 50.97 6.84 0.44 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.53 1.52 1.40 1.54 0.91 1.52 1.62 0.94 1.04 7 1.59 1.43 0.98 1.74 0.88 0.90 12 1.46 1.46 0.95 1.58 0.96 1.01 9 1.68 1.70 0.82 1.83 0.83 1.02 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 56.44)(0.94) + 57.81 0.92(F 7 - 51.92)(0.88) + 57.81 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 9 0.860 0.848 0.824 0.802 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.4 66.4 67.4 66.7 66.5 65.3 66.3 65.9 69.5 64.2 66.5 64.4 67.0 67.0 63.5 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 1.2 1.9 0.7 0.0 1.1 1.5 1.7 0.9 1.6 1.4 1.1 -1.9 2.0 1.7 1.8 S- 7 4.2 5.5 4.6 3.6 4.1 4.3 5.2 4.7 4.8 5.2 4.7 1.4 6.0 5.7 4.4 S- 12 -2.6 -2.3 -3.3 -4.3 -2.6 -2.6 -2.6 -3.9 -2.4 -2.8 -2.4 -5.5 -3.2 -2.8 -2.6 S- 9 6.4 6.9 6.2 5.0 5.4 6.0 7.9 6.6 5.8 6.2 6.5 3.8 7.2 6.7 7.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.12 0.63 1.17 1.61 1.06 1.10 66.40 65.60 0.80 66.07 64.96 1.11 0.32 7 4.68 4.49 4.68 5.02 4.58 4.60 61.88 4.51 61.50 4.57 0.05 12 -3.12-3.44-3.14-2.75-3.14-3.11 69.77-3.37 69.13-3.06 0.31 9 6.14 5.85 5.71 6.65 6.27 6.23 60.56 5.83 59.81 6.26 0.43 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.37 1.42 1.43 1.39 1.03 1.47 1.58 0.93 0.90 7 1.33 1.27 1.12 1.46 1.01 0.89 12 1.33 1.16 1.24 1.56 0.94 0.76 9 1.51 1.56 0.92 1.75 0.84 0.91 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.93(F 10 - 64.96)(0.93) + 66.07 0.92(F 7 - 61.50)(1.01) + 66.07 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.875 0.842 0.827 0.790 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.5 73.1 72.4 74.7 74.9 72.3 73.3 73.1 76.3 71.5 75.1 70.4 74.0 72.9 71.4 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 S- 10 1.2 1.7 0.6 0.8 0.9 1.0 1.4 0.9 1.6 1.4 1.3 -1.9 1.8 1.3 1.7 S- 12 -2.3 -1.7 -3.3 -2.9 -1.6 -1.8 -2.0 -3.2 -1.2 -2.6 -2.1 -4.7 -1.8 -3.1 -1.9 S- 9 6.3 6.9 5.8 6.2 5.2 5.1 6.9 6.7 5.9 6.4 6.8 3.8 6.8 6.4 6.8 S- 7 3.5 4.5 3.3 3.6 3.7 2.2 4.2 4.1 4.1 4.7 4.6 0.6 4.5 4.8 3.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.07 0.64 1.23 1.43 1.00 1.01 72.99 72.15 0.85 73.18 72.15 1.03 0.18 12 -2.31-2.64-2.04-2.02-2.44-2.48 75.47-2.47 75.59-2.41 0.06 9 5.95 5.59 5.76 6.22 6.11 6.13 67.31 5.68 67.04 6.14 0.45 7 3.74 3.62 3.65 3.90 3.70 3.87 69.39 3.60 69.42 3.76 0.16 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.25 1.30 0.97 1.15 0.84 1.53 1.40 1.10 1.31 12 1.23 1.04 0.93 1.25 1.23 1.32 9 1.42 1.45 0.66 1.53 1.00 1.51 7 1.20 1.07 0.90 1.38 1.11 1.23 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.94(F 10 - 72.15)(1.10) + 73.18 0.92(F 12 - 75.59)(1.23) + 73.18 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 6 0.825 0.803 0.736 0.735 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.8 76.4 75.0 77.6 78.2 76.5 76.2 75.9 78.3 75.6 78.5 75.3 78.1 75.9 75.7 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 S- 10 0.6 1.3 0.6 0.9 0.7 0.4 0.3 0.1 1.6 1.5 1.3 -1.0 1.5 1.1 1.7 S- 9 5.3 6.0 5.9 6.5 5.5 4.4 5.4 5.6 6.4 7.0 6.4 4.0 5.7 6.1 6.5 S- 7 2.5 3.4 3.0 4.1 3.6 1.5 3.0 2.7 3.7 4.9 4.2 1.2 3.6 3.6 3.6 S- 6 3.9 5.7 6.1 6.7 5.8 3.5 5.5 6.0 5.4 7.6 6.6 4.2 4.7 5.4 6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.01 0.76 1.29 1.32 0.61 1.11 76.39 75.44 0.95 76.66 75.81 0.85 -0.10 9 5.94 5.71 6.07 6.30 5.64 6.02 70.51 5.88 70.87 5.78 -0.09 7 3.32 3.29 3.22 3.55 3.06 3.54 73.07 3.32 73.42 3.24 -0.08 6 5.60 5.24 5.64 5.93 5.49 5.73 70.99 5.40 71.09 5.56 0.17 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.07 1.07 0.79 0.93 0.84 1.15 1.08 1.07 1.27 9 1.17 1.06 0.74 1.25 0.92 1.25 7 1.05 0.92 0.86 1.18 0.97 1.14 6 1.34 1.30 0.60 1.57 0.73 1.22 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.91(F 10 - 75.81)(1.07) + 76.66 0.90(F 9 - 70.87)(0.92) + 76.66 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 7 0.809 0.787 0.754 0.735 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.0 73.8 74.6 76.0 77.3 75.6 73.8 74.6 76.9 75.7 77.9 74.2 76.8 74.8 75.5 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 S- 10 0.6 1.2 1.1 1.1 1.0 1.0 -0.2 0.3 1.6 1.8 1.6 0.5 1.7 1.7 2.0 S- 9 5.8 6.3 6.1 6.2 6.4 4.9 4.7 5.5 6.8 7.4 6.8 5.8 6.5 7.2 7.7 S- 12 -2.3 -2.0 -2.1 -2.7 -1.6 -2.1 -3.3 -3.6 -1.1 -2.1 -1.4 -2.2 -0.8 -1.9 -1.4 S- 7 2.7 3.4 2.9 4.3 4.5 2.7 2.4 3.3 4.3 5.6 4.9 3.0 3.7 4.1 4.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.14 0.85 1.42 1.28 0.72 1.57 75.40 74.33 1.06 75.57 74.43 1.14 0.08 9 6.22 5.85 6.38 6.50 5.69 6.87 69.36 6.04 69.30 6.27 0.23 12 -1.86-2.04-1.54-1.56-2.52-1.56 77.28-1.88 77.61-2.03 -0.15 7 3.63 3.44 3.53 3.90 3.15 4.32 71.85 3.55 71.81 3.76 0.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.24 1.24 1.06 1.12 0.95 1.25 1.08 1.15 1.22 9 1.38 1.36 0.78 1.21 1.03 1.33 12 1.09 0.92 1.14 0.97 1.29 1.13 7 1.19 1.31 0.80 1.04 1.20 1.49 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.90(F 10 - 74.43)(1.15) + 75.57 0.89(F 9 - 69.30)(1.03) + 75.57 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 12 8 0.809 0.802 0.792 0.772 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.4 70.5 70.3 69.9 68.9 67.7 67.2 69.5 70.2 68.2 70.5 68.3 71.2 69.5 69.8 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 cd 8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3 S- 10 1.4 1.2 1.5 1.3 1.6 1.6 -0.9 1.0 1.8 2.1 1.9 1.9 2.1 2.2 2.7 S- 9 6.7 6.2 6.6 6.6 7.0 6.3 4.6 6.4 6.8 7.2 7.2 7.0 7.1 7.4 8.6 S- 12 -2.4 -2.1 -2.8 -2.9 -2.2 -2.8 -4.7 -3.8 -1.7 -2.3 -2.0 -1.9 -1.4 -1.5 -1.4 S- 8 9.3 9.3 9.4 9.8 10.5 8.9 7.0 8.9 9.1 10.5 10.6 9.8 8.8 8.9 10.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.33 0.84 1.56 1.39 1.00 2.10 69.28 68.22 1.06 69.48 67.92 1.56 0.50 9 6.56 6.03 6.68 6.88 6.12 7.33 63.15 6.13 62.70 6.78 0.65 12 -2.37-2.77-2.08-2.06-2.99-1.75 71.85-2.56 71.86-2.38 0.18 8 9.17 8.58 9.02 9.74 8.95 9.75 60.57 8.71 60.06 9.42 0.71 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.49 1.42 1.22 1.31 0.93 1.13 1.07 1.06 1.14 9 1.50 1.33 0.91 1.10 1.03 1.13 12 1.30 1.13 1.08 1.01 1.12 1.04 8 1.57 1.59 0.77 1.25 0.90 1.17 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.90(F 10 - 67.92)(1.06) + 69.48 0.90(F 9 - 62.70)(1.03) + 69.48 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 13 0.839 0.837 0.813 0.795 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.7 60.7 64.8 62.5 60.5 58.7 58.4 62.6 61.0 61.1 61.9 62.0 60.8 59.8 60.9 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 10 2.3 1.1 1.7 1.9 2.1 2.3 -1.3 1.9 1.8 2.5 1.8 2.5 2.6 2.5 2.9 S- 12 -2.0 -2.8 -3.7 -3.8 -2.4 -3.4 -6.2 -3.0 -2.1 -2.5 -3.0 -2.0 -2.1 -2.3 -1.9 S- 9 8.1 6.7 7.3 7.7 7.8 7.7 5.0 7.5 7.6 8.1 8.2 7.8 8.8 8.7 9.4 S- 13 0.8 -0.9 -0.2 -0.5 0.7 -0.1 -2.7 -0.2 0.6 0.8 0.4 1.2 1.1 0.8 1.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.51 0.86 1.62 1.57 1.40 2.38 60.36 59.27 1.09 61.17 59.25 1.92 0.83 12 -2.96-3.50-2.57-2.84-3.37-2.30 63.61-3.25 64.06-2.89 0.36 9 7.22 6.62 7.06 7.42 7.00 8.36 53.73 6.63 53.41 7.76 1.13 13 -0.34-1.20-0.27-0.25-0.52 0.89 61.38-1.02 60.96 0.21 1.23 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.68 1.52 0.82 0.78 1.05 1.53 1.55 0.99 0.94 12 1.57 0.77 1.07 1.65 0.93 0.87 9 1.66 0.90 0.91 1.63 0.94 1.03 13 1.52 0.79 1.04 1.60 0.95 0.92 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.92(F 10 - 59.25)(0.99) + 61.17 0.91(F 12 - 64.06)(0.93) + 61.17 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.924 0.914 0.905 0.886 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 51.6 54.2 54.1 53.2 51.2 49.1 46.0 55.2 52.6 51.7 51.0 54.7 50.1 51.5 51.4 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 S- 10 2.9 0.9 1.6 2.2 2.2 2.0 -0.5 2.1 1.9 2.7 1.6 2.7 2.5 2.9 2.9 S- 12 -2.8 -3.6 -4.6 -4.2 -2.9 -3.7 -6.6 -3.3 -2.7 -3.0 -3.6 -2.4 -3.1 -2.7 -2.4 S- 9 9.4 6.5 8.3 8.8 7.7 7.9 6.6 8.4 8.2 8.9 8.2 8.4 9.0 8.9 9.2 S- 7 6.9 5.2 7.3 7.4 6.2 5.6 4.5 6.2 6.2 7.3 6.4 7.0 6.6 6.8 6.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.61 0.86 1.62 1.74 1.63 2.44 50.37 49.29 1.08 51.85 49.82 2.03 0.96 12 -3.59-4.22-3.45-3.31-3.93-2.83 54.38-4.02 55.30-3.44 0.57 9 7.77 7.06 7.66 7.97 7.74 8.67 43.22 7.15 43.56 8.29 1.14 7 5.85 4.97 5.85 6.10 5.92 6.65 45.16 5.20 45.46 6.39 1.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.23 1.96 1.56 1.43 1.09 2.29 2.11 1.09 1.00 12 1.96 1.49 1.04 2.02 1.14 1.09 9 2.15 1.54 1.01 2.26 1.02 1.00 7 1.92 1.48 1.05 1.99 1.15 1.10 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.96(F 10 - 49.82)(1.09) + 51.85 0.96(F 12 - 55.30)(1.14) + 51.85 Station#1879 SUFFOLK/LAKE KILBY , va 4819201 lat/lon 76.60 36.73 2M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 9 7 0.948 0.931 0.926 0.908 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.3 43.0 45.1 44.7 44.5 45.7 42.2 47.9 46.2 46.8 42.8 49.1 41.0 44.6 43.7 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 S- 10 2.2 0.4 0.8 2.2 2.4 2.3 0.5 1.9 1.6 2.5 1.7 2.8 1.8 2.8 0.2 S- 12 -4.2 -5.0 -5.1 -5.1 -3.4 -4.1 -6.0 -3.8 -3.1 -3.8 -4.6 -2.5 -4.8 -3.8 -5.2 S- 9 9.1 7.2 8.4 8.8 8.0 7.7 7.9 8.3 9.0 8.8 9.2 9.3 8.4 9.5 6.4 S- 7 7.3 5.2 6.8 7.8 7.4 6.9 6.4 7.5 7.1 7.8 7.8 7.3 7.1 7.6 3.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.53 0.79 1.61 1.82 1.61 1.92 43.18 42.12 1.06 44.64 42.90 1.74 0.69 12 -4.43-5.15-4.17-4.18-4.53-3.96 48.06-4.88 48.94-4.30 0.59 9 8.24 7.48 8.33 8.75 8.10 8.64 35.43 7.75 36.24 8.39 0.65 7 6.72 5.92 6.91 7.14 6.74 6.92 36.91 6.27 37.72 6.92 0.65 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.63 2.36 2.01 1.90 1.06 2.17 1.95 1.11 1.05 12 2.40 2.02 1.00 1.66 1.30 1.31 9 2.64 2.20 0.92 2.10 1.03 1.13 7 2.43 1.96 1.03 2.15 1.01 0.98 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.97(F 10 - 42.90)(1.11) + 44.64 0.96(F 12 - 48.94)(1.30) + 44.64 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 41.17 43.93 49.32 56.78 65.62 72.30 75.86 74.38 68.96 58.87 49.47 43.09 1952 42.07 44.05 49.97 57.87 68.25 74.68 78.19 75.40 67.25 58.42 48.44 44.36 1953 42.50 45.69 50.63 59.53 68.14 75.50 77.13 75.66 69.04 60.02 50.87 43.58 1954 42.30 44.34 52.20 57.85 65.96 71.09 75.43 75.30 70.07 59.87 48.29 39.56 1955 37.75 42.01 50.34 59.01 65.39 72.22 76.20 76.48 69.08 58.46 46.58 38.54 1956 37.41 41.42 48.34 55.67 64.75 71.99 75.47 73.45 67.91 58.95 52.49 43.81 1957 41.94 41.46 50.61 58.58 68.25 73.44 75.68 74.43 66.59 58.60 48.97 42.12 1958 36.77 36.59 44.36 54.64 64.19 71.68 75.12 74.23 66.97 58.74 46.95 40.10 1959 36.89 42.08 49.58 58.59 67.28 73.18 76.57 75.69 70.40 60.26 50.63 42.91 1960 40.22 37.83 45.19 53.09 65.95 71.02 75.66 74.52 68.65 59.18 46.83 37.64 1961 35.18 40.95 48.34 55.08 62.50 70.69 75.37 75.73 69.44 60.84 48.73 41.13 1962 37.27 39.55 46.49 56.34 66.15 72.02 73.95 71.77 66.73 57.09 46.60 38.19 1963 34.11 39.48 47.23 57.08 64.24 70.43 74.25 72.15 66.32 58.20 46.83 39.89 1964 35.48 40.94 46.64 56.33 65.19 72.21 74.56 72.59 64.95 57.47 48.98 43.21 1965 39.27 39.44 45.49 55.55 65.03 72.02 74.14 73.90 67.20 57.98 48.08 40.05 1966 36.60 39.00 46.40 55.44 63.84 71.86 75.57 73.68 66.31 56.92 46.90 42.19 1967 38.42 41.72 47.28 54.95 63.22 68.91 73.69 71.37 64.89 54.60 46.80 39.04 1968 35.41 38.36 46.24 56.51 64.77 71.84 76.64 74.65 68.60 59.58 49.14 40.66 1969 36.32 38.29 46.50 55.73 66.70 73.13 76.07 73.71 66.93 57.61 46.93 37.65 1970 34.86 37.18 45.86 55.77 66.30 73.37 76.20 75.80 70.47 61.39 50.15 40.95 1971 37.67 39.57 46.33 54.40 64.50 71.98 75.63 74.26 70.17 61.32 53.46 45.02 1972 41.55 41.38 46.91 55.88 63.72 70.62 74.05 73.67 66.53 57.10 49.05 42.83 1973 39.99 42.08 48.82 57.40 65.65 72.39 76.72 75.27 69.40 60.41 49.79 44.85 1974 41.63 45.46 50.41 58.84 65.46 71.07 74.36 73.68 66.47 57.20 48.20 43.30 1975 40.99 42.39 46.46 55.28 64.76 72.35 75.72 73.75 68.89 60.23 50.71 41.77 1976 40.51 44.66 52.69 58.15 65.63 71.42 74.60 72.51 65.07 54.09 43.43 33.60 1977 32.87 38.55 50.68 59.72 66.48 72.91 76.79 76.83 69.04 59.76 48.48 40.35 1978 33.58 35.42 43.53 54.85 64.74 71.28 75.85 74.89 68.34 59.17 49.33 42.47 1979 35.09 38.16 45.30 57.95 64.58 70.78 73.92 73.85 67.62 59.46 49.98 42.93 1980 37.07 38.55 46.03 57.14 66.41 73.33 77.41 77.74 70.11 58.45 46.25 37.37 1981 36.40 38.53 48.83 55.86 67.08 72.56 76.03 72.81 65.38 56.53 45.94 37.50 1982 34.84 38.60 46.75 56.21 64.86 72.58 74.33 72.95 66.48 59.07 51.40 44.14 1983 39.90 41.36 47.22 56.02 63.93 71.93 76.48 75.63 69.35 59.59 48.43 39.31 1984 37.77 40.07 47.87 54.70 65.23 71.91 75.48 72.83 69.37 59.56 52.95 42.07 1985 40.15 40.98 50.49 59.24 66.76 72.23 74.93 74.27 69.22 63.04 52.05 43.42 1986 37.67 41.53 48.59 57.71 66.62 74.04 76.54 75.15 68.95 60.68 50.60 41.91 1987 37.88 40.31 46.94 56.86 66.05 74.35 77.81 76.62 67.69 58.84 49.15 41.95 1988 38.34 40.33 48.73 57.09 65.08 72.50 77.05 75.86 67.04 57.36 47.51 43.66 1989 40.40 43.50 48.29 56.11 65.54 72.59 76.32 74.50 68.69 60.04 46.17 41.20 1990 40.63 48.56 52.77 58.45 65.57 72.63 76.08 74.42 69.09 60.95 53.29 45.68 1991 43.32 44.98 51.71 60.75 68.77 75.57 77.50 76.21 69.02 59.53 50.62 44.30 1992 42.23 43.06 48.72 55.24 63.48 70.47 74.11 73.97 66.50 59.04 49.19 44.15 1993 39.69 40.93 46.22 56.10 66.13 74.17 77.81 76.90 69.16 59.93 48.71 40.20 1994 36.66 40.31 50.55 58.16 67.75 73.26 77.13 74.10 66.77 59.52 51.93 45.88 1995 41.14 42.69 49.14 58.15 66.30 73.20 77.33 75.70 69.56 58.87 47.77 39.03 1996 36.77 39.61 47.44 56.08 66.31 72.00 75.01 73.43 67.81 57.79 49.08 41.94 1997 42.06 44.34 49.85 55.88 62.84 70.78 74.70 74.21 67.58 58.04 48.03 40.62 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 8 0.973 0.966 0.960 0.936 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.9 37.8 40.2 37.7 37.9 38.3 40.4 40.6 43.3 42.2 39.7 36.7 41.1 36.8 42.1 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3 S- 10 -0.8 -0.8 -0.1 -1.3 -0.5 0.2 -0.3 -0.3 -0.1 -0.5 -0.7 -0.9 -0.3 -0.5 0.3 S- 7 3.7 5.0 5.3 5.3 4.7 5.5 5.4 6.1 5.9 5.8 5.3 6.3 5.3 5.4 5.4 S- 9 4.7 6.4 7.3 6.2 5.5 6.2 5.9 6.9 7.0 6.5 5.8 6.4 7.0 6.1 6.6 S- 8 8.2 11.2 11.7 11.2 9.7 10.8 10.8 11.8 11.7 11.1 10.8 12.5 11.4 10.8 10.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.80-0.47-1.15-1.21-0.64-0.38 38.69 39.40-0.71 39.64 40.07-0.43 0.27 7 5.10 5.15 4.93 4.96 4.97 5.64 33.45 5.24 34.28 5.36 0.13 9 6.09 6.13 5.91 6.04 6.01 6.48 32.62 6.07 33.35 6.29 0.22 8 10.8210.7110.5211.0710.6411.28 27.8310.86 28.6810.96 0.10 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.70 2.48 2.75 2.49 1.10 1.99 1.82 1.09 0.99 7 2.52 2.68 1.03 2.00 1.00 0.97 9 2.89 2.99 0.92 1.85 1.08 1.17 8 2.85 2.97 0.93 2.18 0.92 0.99 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.99(F 10 - 40.07)(1.09) + 39.64 0.98(F 7 - 34.28)(1.00) + 39.64 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.982 0.959 0.948 0.937 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.4 40.1 41.0 41.5 40.3 40.3 43.5 48.6 45.0 43.1 40.9 40.3 42.7 39.6 44.3 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 S- 10 -0.4 -0.6 0.0 -1.0 0.1 0.5 0.0 0.3 0.0 -0.6 -0.7 -0.5 -0.2 0.2 0.1 S- 9 5.3 6.2 7.5 5.7 5.0 6.4 5.3 6.6 7.0 6.0 5.7 7.1 6.7 6.8 6.5 S- 7 4.3 5.8 5.4 5.3 4.7 5.7 6.1 6.5 6.0 6.0 6.0 8.1 5.2 5.9 5.9 S- 13 -3.0 -5.0 -3.7 -5.2 -3.6 -2.8 -4.2 -2.8 -3.0 -4.1 -3.8 -5.0 -3.3 -3.8 -4.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.54-0.38-0.88-0.79-0.31-0.23 41.32 41.89-0.57 42.17 42.35-0.18 0.39 9 6.10 6.30 5.76 6.12 5.92 6.54 35.21 6.11 35.92 6.25 0.14 7 5.48 5.48 5.25 5.37 5.33 6.17 35.81 5.51 36.37 5.80 0.29 13 -4.34-4.27-4.63-4.62-4.10-3.95 45.76-4.45 46.03-3.86 0.59 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.64 2.45 2.43 2.14 1.13 2.33 2.25 1.04 0.92 9 2.79 2.46 0.99 2.36 0.99 1.00 7 2.26 1.94 1.25 2.33 1.00 0.80 13 2.57 2.47 0.98 2.21 1.06 1.07 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.99(F 10 - 42.35)(1.04) + 42.17 0.98(F 9 - 35.92)(0.99) + 42.17 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.969 0.937 0.931 0.895 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 47.2 47.9 50.5 48.6 46.9 48.7 48.3 52.8 51.7 48.7 46.2 50.5 49.1 47.4 49.8 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 10 -0.1 0.2 0.1 -1.0 0.6 1.2 0.3 0.5 0.5 -0.4 0.1 0.3 0.6 1.1 0.5 S- 7 4.4 5.9 5.3 5.5 4.3 6.1 6.0 6.3 5.8 6.1 6.1 7.5 6.5 6.2 5.4 S- 9 5.3 6.4 6.8 4.5 5.1 6.8 6.1 6.6 6.5 5.5 6.3 7.0 7.0 7.6 6.5 S- 13 -2.9 -3.4 -3.2 -5.7 -3.0 -2.4 -4.0 -2.6 -3.1 -3.8 -2.8 -3.4 -3.4 -2.6 -3.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.04 0.19-0.53-0.21 0.12 0.36 48.32 48.40-0.08 48.97 48.67 0.30 0.38 7 5.50 5.64 5.13 5.39 5.34 6.23 42.80 5.51 43.14 5.83 0.31 9 6.02 6.52 5.26 5.96 5.93 6.63 42.19 6.13 42.70 6.27 0.14 13 -3.81-3.43-4.56-4.01-3.62-3.28 52.13-3.81 52.32-3.35 0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.19 1.97 2.25 1.95 1.15 1.76 1.80 0.98 0.85 7 1.89 1.67 1.35 1.66 1.06 0.79 9 2.04 2.10 1.07 1.69 1.04 0.98 13 1.96 2.04 1.10 1.92 0.92 0.83 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 48.67)(0.98) + 48.97 0.97(F 7 - 43.14)(1.06) + 48.97 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.947 0.910 0.863 0.848 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.0 54.7 59.2 57.7 56.9 57.1 56.1 58.5 60.8 55.2 56.1 58.2 58.2 56.1 55.9 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 10 0.6 0.4 0.1 0.0 0.9 1.4 0.9 0.5 0.8 0.1 0.5 0.9 0.9 1.2 0.9 S- 7 4.7 5.5 4.5 4.0 4.1 5.2 5.2 5.5 5.2 5.3 5.2 6.2 5.7 6.1 5.1 S- 9 6.3 6.4 5.6 5.0 4.9 6.1 6.1 6.3 5.6 5.2 6.3 7.6 6.5 6.9 7.1 S- 13 -2.1 -3.3 -2.6 -3.5 -2.5 -1.9 -2.5 -2.5 -2.0 -2.7 -1.8 -2.3 -3.3 -2.4 -3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.32 0.24-0.19 0.46 0.46 0.74 56.80 56.76 0.03 57.10 56.44 0.66 0.63 7 4.92 5.02 4.57 4.91 4.72 5.55 52.01 4.79 51.92 5.18 0.39 9 5.71 6.02 4.80 5.79 5.69 6.48 51.18 5.62 50.97 6.13 0.52 13 -3.07-3.10-3.89-2.85-2.83-2.53 60.19-3.39 59.67-2.57 0.83 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.61 1.52 1.75 1.54 1.14 1.58 1.62 0.97 0.86 7 1.59 1.43 1.22 1.74 0.91 0.74 9 1.68 1.70 1.02 1.83 0.86 0.84 13 1.53 1.59 1.10 1.57 1.00 0.92 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 56.44)(0.97) + 57.10 0.95(F 7 - 51.92)(0.91) + 57.10 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 9 0.946 0.919 0.868 0.852 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 63.9 65.2 66.8 66.6 66.1 65.1 65.5 65.6 68.8 63.5 66.1 67.8 66.3 66.3 62.8 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 0.8 0.7 0.0 -0.1 0.7 1.3 0.9 0.5 0.9 0.7 0.8 1.4 1.3 1.0 1.1 S- 7 3.8 4.3 4.0 3.5 3.7 4.1 4.4 4.3 4.1 4.5 4.4 4.7 5.3 5.0 3.7 S- 12 -3.1 -3.5 -4.0 -4.4 -3.0 -2.8 -3.4 -4.3 -3.2 -3.5 -2.8 -2.1 -3.9 -3.5 -3.3 S- 9 6.0 5.7 5.6 4.9 5.0 5.8 7.1 6.2 5.0 5.5 6.1 7.1 6.5 6.0 6.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.55 0.28 0.25 0.79 0.56 1.03 65.79 65.60 0.19 65.76 64.96 0.80 0.61 7 4.12 4.15 3.75 4.19 4.08 4.53 61.88 3.91 61.50 4.25 0.34 12 -3.68-3.79-4.06-3.57-3.65-3.18 69.77-3.98 69.13-3.38 0.60 9 5.57 5.51 4.79 5.82 5.76 6.16 60.56 5.23 59.81 5.95 0.72 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.42 1.42 1.59 1.39 1.14 1.49 1.58 0.94 0.83 7 1.33 1.27 1.25 1.46 1.02 0.82 12 1.33 1.16 1.37 1.56 0.96 0.70 9 1.51 1.56 1.02 1.75 0.85 0.84 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 64.96)(0.94) + 65.76 0.96(F 7 - 61.50)(1.02) + 65.76 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.955 0.895 0.889 0.855 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.9 71.9 72.2 74.0 74.3 72.5 72.6 72.6 75.6 70.5 74.2 73.3 73.2 72.0 70.8 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 S- 10 0.6 0.5 0.4 0.1 0.4 1.2 0.8 0.5 0.8 0.4 0.3 1.0 1.0 0.4 1.1 S- 9 5.8 5.8 5.6 5.5 4.7 5.3 6.2 6.2 5.2 5.4 5.9 6.6 6.0 5.5 6.3 S- 7 3.0 3.4 3.2 3.0 3.2 2.4 3.5 3.7 3.4 3.6 3.7 3.4 3.7 3.9 3.3 S- 12 -2.8 -2.9 -3.4 -3.6 -2.1 -1.6 -2.6 -3.7 -1.9 -3.7 -3.0 -1.8 -2.6 -4.0 -2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.51 0.17 0.36 0.83 0.51 0.71 72.30 72.15 0.15 72.78 72.15 0.63 0.48 9 5.39 5.13 4.90 5.62 5.62 5.83 67.31 4.99 67.04 5.73 0.75 7 3.18 3.16 2.79 3.31 3.21 3.57 69.39 2.90 69.42 3.35 0.45 12 -2.87-3.11-2.90-2.62-2.93-2.79 75.47-3.17 75.59-2.82 0.35 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.31 1.30 1.36 1.15 1.18 1.32 1.40 0.94 0.80 9 1.42 1.45 0.94 1.53 0.86 0.92 7 1.20 1.07 1.27 1.38 0.95 0.75 12 1.23 1.04 1.31 1.25 1.06 0.81 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 72.15)(0.94) + 72.78 0.95(F 9 - 67.04)(0.86) + 72.78 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.958 0.922 0.879 0.827 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.5 75.5 74.9 76.5 77.8 77.1 76.3 76.1 77.5 74.1 77.8 77.1 77.3 75.0 74.7 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 10 0.4 0.3 0.5 -0.1 0.2 1.0 0.4 0.3 0.7 0.1 0.6 0.9 0.8 0.2 0.7 S- 9 5.1 5.0 5.8 5.5 5.1 5.0 5.5 5.8 5.5 5.6 5.7 5.9 5.0 5.2 5.5 S- 7 2.2 2.4 2.9 3.1 3.2 2.1 3.1 2.9 2.8 3.4 3.5 3.1 2.9 2.7 2.6 S- 38 1.3 2.2 3.0 2.5 3.1 2.2 3.5 3.5 3.1 3.8 3.5 3.7 2.1 2.6 2.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.40 0.16 0.33 0.59 0.38 0.58 75.57 75.44 0.13 76.29 75.81 0.48 0.35 9 5.33 5.11 5.10 5.57 5.41 5.49 70.51 5.06 70.87 5.41 0.35 7 2.70 2.70 2.26 2.83 2.83 3.01 73.07 2.50 73.42 2.87 0.37 38 2.51 1.88 2.46 2.66 2.65 3.09 73.63 1.94 73.43 2.86 0.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.18 1.07 1.11 0.93 1.19 1.16 1.08 1.07 0.90 9 1.17 1.06 1.04 1.25 0.92 0.88 7 1.05 0.92 1.21 1.18 0.98 0.81 38 1.33 1.30 0.85 1.39 0.83 0.97 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 75.81)(1.07) + 76.29 0.96(F 9 - 70.87)(0.92) + 76.29 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.968 0.925 0.910 0.888 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.6 72.8 74.3 75.2 76.6 75.9 74.5 74.4 76.2 74.0 76.9 74.1 75.7 73.4 74.2 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 S- 10 0.2 0.2 0.8 0.3 0.4 1.2 0.5 0.1 0.8 0.1 0.6 0.5 0.6 0.3 0.7 S- 9 5.5 5.4 5.8 5.3 5.8 5.1 5.4 5.3 6.0 5.7 5.7 5.7 5.3 5.8 6.4 S- 7 2.3 2.4 2.6 3.4 3.8 2.9 3.1 3.2 3.6 3.9 3.9 2.9 2.6 2.8 3.2 S- 12 -2.7 -2.9 -2.4 -3.5 -2.3 -1.9 -2.6 -3.8 -1.8 -3.8 -2.4 -2.2 -2.0 -3.3 -2.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.23 0.14 0.00 0.20 0.41 0.51 74.38 74.33 0.04 74.92 74.43 0.49 0.45 9 5.31 5.14 4.95 5.43 5.38 5.81 69.36 5.02 69.30 5.62 0.60 7 2.72 2.73 2.10 2.82 2.84 3.26 71.85 2.53 71.81 3.11 0.58 12 -2.77-2.74-2.97-2.63-2.83-2.62 77.28-2.90 77.61-2.69 0.22 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.40 1.24 1.36 1.12 1.22 1.16 1.08 1.07 0.88 9 1.38 1.36 1.00 1.21 0.96 0.96 7 1.19 1.31 1.03 1.04 1.11 1.08 12 1.09 0.92 1.47 0.97 1.19 0.81 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 74.43)(1.07) + 74.92 0.96(F 9 - 69.30)(0.96) + 74.92 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 12 0.958 0.919 0.915 0.910 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.3 69.4 69.2 68.9 67.7 67.0 68.7 69.1 69.0 66.5 69.2 66.8 69.6 67.8 67.6 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 12 72.8 72.6 73.1 72.8 71.1 70.5 71.9 73.3 71.9 70.6 72.5 70.2 72.7 71.0 71.2 S- 10 0.4 0.1 0.4 0.4 0.4 0.9 0.6 0.5 0.6 0.3 0.5 0.4 0.4 0.5 0.5 S- 7 3.0 3.1 3.3 3.9 4.0 3.5 3.3 3.5 3.3 4.0 4.2 3.5 2.7 3.2 3.3 S- 9 5.6 5.1 5.5 5.7 5.8 5.7 6.1 5.9 5.6 5.5 5.9 5.5 5.4 5.7 6.4 S- 12 -3.5 -3.2 -3.9 -3.8 -3.4 -3.4 -3.2 -4.2 -2.9 -4.1 -3.3 -3.4 -3.1 -3.2 -3.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.02-0.14-0.36-0.12 0.37 0.48 67.97 68.22-0.25 68.39 67.92 0.47 0.72 7 2.91 2.80 2.23 3.00 3.25 3.45 65.38 2.59 64.95 3.44 0.85 9 5.25 5.05 4.76 5.37 5.49 5.71 63.15 4.82 62.70 5.69 0.87 12 -3.68-3.75-4.00-3.57-3.62-3.37 71.85-3.87 71.86-3.48 0.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.51 1.42 1.50 1.31 1.14 1.01 1.07 0.95 0.83 7 1.41 1.37 1.09 1.22 0.83 0.76 9 1.50 1.33 1.13 1.10 0.92 0.82 12 1.30 1.13 1.32 1.01 1.00 0.76 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.98(F 10 - 67.92)(0.95) + 68.39 0.96(F 7 - 64.95)(0.83) + 68.39 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.947 0.905 0.899 0.899 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.6 59.6 63.0 60.7 58.8 57.4 60.0 61.0 59.5 59.0 59.9 59.5 58.9 57.8 58.0 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 12 63.8 63.5 68.5 66.4 62.9 62.2 64.6 65.6 63.1 63.6 64.9 64.0 62.9 62.2 62.8 S- 10 0.1 0.0 0.0 0.0 0.4 0.9 0.4 0.2 0.3 0.5 -0.2 0.1 0.7 0.5 0.1 S- 9 6.0 5.6 5.5 5.8 6.1 6.3 6.6 5.8 6.1 6.1 6.2 5.3 6.9 6.7 6.6 S- 7 3.1 3.5 4.5 4.9 4.1 4.0 4.2 3.7 3.9 4.9 4.8 3.4 3.7 3.8 3.4 S- 12 -4.2 -3.9 -5.4 -5.7 -4.0 -4.8 -4.5 -4.7 -3.6 -4.5 -5.0 -4.5 -4.1 -4.4 -4.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.25-0.25-0.65-0.62 0.14 0.28 58.86 59.27-0.41 59.52 59.25 0.27 0.67 9 5.46 5.51 4.79 5.23 5.75 6.26 53.73 5.13 53.41 6.11 0.97 7 3.26 3.18 2.55 3.09 3.73 3.98 55.94 2.92 55.53 3.99 1.07 12 -4.72-4.61-4.83-5.03-4.63-4.40 63.61-4.75 64.06-4.54 0.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.63 1.52 1.00 0.78 1.28 1.35 1.55 0.87 0.68 9 1.66 0.90 1.11 1.63 0.82 0.74 7 1.45 1.11 0.90 1.28 1.06 1.17 12 1.57 0.77 1.30 1.65 0.81 0.63 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 59.25)(0.87) + 59.52 0.95(F 9 - 53.41)(0.82) + 59.52 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.967 0.946 0.942 0.931 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.4 53.0 52.0 50.6 49.2 47.5 46.2 53.3 50.6 49.2 48.7 51.9 47.8 49.1 48.0 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 12 54.4 57.8 58.8 57.5 54.1 52.9 52.6 58.5 55.3 54.7 54.7 57.1 53.2 54.2 53.8 S- 10 -0.3 -0.3 -0.5 -0.5 0.2 0.4 -0.4 0.2 -0.1 0.1 -0.7 -0.1 0.2 0.4 -0.5 S- 9 6.2 5.3 6.2 6.1 5.6 6.3 6.8 6.6 6.2 6.4 5.8 5.6 6.7 6.5 5.8 S- 7 3.7 4.0 5.3 4.7 4.1 4.0 4.7 4.3 4.2 4.8 4.0 4.2 4.3 4.4 2.9 S- 12 -6.0 -4.9 -6.7 -6.9 -5.0 -5.4 -6.4 -5.2 -4.7 -5.5 -5.9 -5.2 -5.4 -5.1 -5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.60-0.50-1.04-0.95-0.24-0.10 48.58 49.29-0.71 49.70 49.82-0.12 0.59 9 5.56 5.70 5.00 5.29 5.87 6.13 43.22 5.37 43.56 6.14 0.77 7 3.65 3.61 3.19 3.42 4.05 4.11 45.16 3.42 45.46 4.24 0.82 12 -5.79-5.58-6.11-5.99-5.80-5.36 54.38-5.80 55.30-5.60 0.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.11 1.96 1.69 1.43 1.19 2.05 2.11 0.97 0.82 9 2.15 1.54 1.10 2.26 0.91 0.83 7 1.92 1.48 1.14 1.99 1.03 0.90 12 1.96 1.49 1.13 2.02 1.02 0.90 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 49.82)(0.97) + 49.70 0.97(F 9 - 43.56)(0.91) + 49.70 Station#1880 WALKERTON/2 NW , va 4882901 lat/lon 77.02 37.73 3M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 12 0.970 0.959 0.942 0.931 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.3 42.1 43.4 41.9 42.0 43.7 41.2 45.7 44.3 44.2 40.2 45.9 39.0 41.9 40.6 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 S- 10 -0.8 -0.5 -0.8 -0.6 -0.1 0.2 -0.5 -0.3 -0.3 -0.1 -1.0 -0.5 -0.1 0.2 -2.9 S- 9 6.1 6.3 6.7 6.0 5.5 5.6 6.9 6.2 7.1 6.2 6.5 6.0 6.4 6.8 3.3 S- 7 4.3 4.3 5.1 5.0 4.9 4.8 5.4 5.4 5.2 5.1 5.2 4.0 5.2 4.9 0.6 S- 12 -7.3 -5.9 -6.7 -7.9 -5.9 -6.2 -7.0 -6.0 -4.9 -6.5 -7.3 -5.8 -6.7 -6.4 -8.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -0.88-0.76-1.09-1.28-0.53-0.68 41.21 42.12-0.91 42.35 42.90-0.54 0.37 9 5.83 5.93 5.63 5.65 5.95 6.05 35.43 5.78 36.24 6.11 0.33 7 4.31 4.37 4.21 4.04 4.60 4.33 36.91 4.30 37.72 4.63 0.33 12 -6.83-6.70-6.87-7.28-6.67-6.55 48.06-6.85 48.94-6.58 0.27 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.54 2.36 2.15 1.90 1.14 2.05 1.95 1.05 0.93 9 2.64 2.20 0.98 2.10 0.98 1.00 7 2.43 1.96 1.10 2.15 0.96 0.87 12 2.40 2.02 1.07 1.66 1.23 1.16 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 42.90)(1.05) + 42.35 0.98(F 9 - 36.24)(0.98) + 42.35 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 39.05 41.20 46.81 55.44 64.72 72.31 76.29 75.29 69.70 58.85 49.05 41.84 1952 40.86 41.69 47.14 54.80 65.99 73.83 77.86 75.26 66.74 57.43 47.43 42.53 1953 40.64 43.62 48.84 57.89 66.93 74.72 76.84 75.26 68.83 59.46 49.86 41.56 1954 39.97 41.21 49.27 55.52 65.49 71.87 76.11 75.75 70.12 60.16 48.11 39.14 1955 36.70 40.16 47.91 57.47 65.19 73.15 76.92 76.82 69.23 58.31 46.20 37.76 1956 36.28 39.55 45.96 53.42 63.46 70.76 74.59 72.43 66.87 57.28 49.81 41.00 1957 39.41 39.99 48.92 57.37 67.63 74.26 77.11 75.58 67.58 58.90 48.76 41.67 1958 35.79 35.78 43.46 54.52 64.52 71.87 75.30 74.58 67.84 59.33 47.23 39.07 1959 35.47 39.80 47.79 57.85 68.05 74.71 78.25 77.34 71.86 60.73 50.38 42.26 1960 39.50 37.31 44.99 53.40 66.31 71.57 76.56 75.63 69.46 59.45 46.00 36.27 1961 32.84 38.56 46.13 53.94 62.46 71.31 76.47 77.01 70.59 61.48 48.66 40.24 1962 35.17 37.86 45.21 56.35 66.24 72.54 75.19 72.96 67.91 57.38 46.11 36.36 1963 31.86 37.16 46.12 57.05 65.43 72.04 75.56 73.21 67.66 59.15 47.31 38.93 1964 34.68 40.25 46.23 56.56 66.06 74.36 76.85 74.86 66.77 58.58 48.60 41.30 1965 36.67 37.19 43.44 54.12 64.54 73.31 76.04 76.04 69.05 59.81 49.46 41.01 1966 36.69 38.77 45.70 55.10 64.57 73.93 78.54 76.13 68.07 58.33 47.97 42.58 1967 37.60 40.16 45.74 54.12 64.03 70.57 76.02 73.82 67.32 56.96 47.61 38.67 1968 35.18 38.52 47.45 57.07 65.22 72.54 77.77 77.10 70.82 61.08 49.26 40.13 1969 35.85 38.06 46.35 56.66 68.04 74.96 77.63 75.36 68.39 58.70 47.40 37.69 1970 34.34 36.28 44.86 55.10 66.24 74.20 77.81 77.75 72.11 62.25 50.49 39.97 1971 36.59 37.80 45.86 53.94 64.84 72.60 76.98 76.04 71.44 61.97 52.82 43.98 1972 40.23 40.23 45.47 54.71 62.93 70.71 74.54 74.81 67.58 57.87 48.79 42.58 1973 39.47 42.06 48.30 56.61 65.25 72.99 78.75 77.83 72.47 63.05 52.26 45.38 1974 41.39 43.88 49.08 57.50 64.96 71.84 76.30 75.90 68.59 59.41 50.37 44.86 1975 41.54 42.28 46.56 56.16 66.55 75.06 78.56 76.01 70.58 62.02 52.66 42.79 1976 40.27 43.96 52.77 58.73 67.46 73.60 77.56 75.20 67.45 56.23 44.63 34.52 1977 33.02 38.92 50.77 60.71 67.93 74.84 77.99 77.88 70.53 61.53 49.58 40.62 1978 34.04 36.21 44.78 55.94 66.72 73.74 78.94 77.92 71.39 61.69 51.56 43.37 1979 35.77 38.68 45.76 58.43 65.39 72.89 76.53 76.26 69.51 61.48 52.19 45.00 1980 39.05 39.91 47.58 58.58 68.15 75.55 80.03 80.78 73.22 61.83 49.40 40.33 1981 38.62 41.33 51.22 58.57 68.94 74.99 78.65 76.14 68.76 60.20 49.33 39.15 1982 34.83 37.31 46.14 56.22 65.29 74.01 76.14 75.44 68.67 60.83 52.47 45.04 1983 40.83 41.95 47.10 55.63 64.38 73.68 79.11 78.33 71.34 61.12 48.89 39.38 1984 37.17 39.16 46.79 53.83 65.52 72.69 77.06 74.24 70.42 59.85 52.30 40.72 1985 38.04 38.76 49.24 59.07 67.32 73.13 76.05 75.91 69.90 62.43 50.57 41.88 1986 35.68 39.47 46.55 57.22 66.97 75.22 77.44 75.58 68.86 59.52 49.14 40.23 1987 37.14 39.89 46.72 56.58 66.12 75.35 79.22 77.81 68.30 58.68 48.53 40.65 1988 36.55 38.52 46.40 55.81 64.86 74.02 79.02 77.24 67.97 57.69 47.63 42.73 1989 38.80 41.35 46.60 55.18 65.40 73.01 77.37 75.59 69.57 59.90 45.37 39.70 1990 38.67 46.36 50.86 57.09 65.32 72.82 76.94 75.19 69.60 61.45 53.08 44.93 1991 41.96 43.44 50.11 59.98 69.34 77.05 79.43 77.54 70.44 60.05 50.51 43.03 1992 40.54 41.46 47.24 54.22 63.12 71.14 75.06 74.24 66.30 57.93 48.10 42.63 1993 37.98 38.88 43.95 54.79 65.82 75.25 79.35 77.93 69.48 59.23 48.30 38.44 1994 34.32 36.82 48.10 56.73 68.07 74.69 78.88 75.88 68.21 60.84 52.18 45.60 1995 39.51 41.23 46.89 57.08 65.57 73.94 79.16 77.95 71.49 58.81 47.05 37.13 1996 35.18 37.66 45.70 54.51 65.93 72.83 77.09 74.92 68.79 58.03 48.87 41.32 1997 41.42 43.40 49.20 55.19 63.32 72.11 77.07 76.19 69.19 58.72 48.93 40.74 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 10 9 0.952 0.912 0.905 0.897 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.8 37.2 38.0 35.7 37.1 36.5 38.8 38.7 42.0 40.5 38.0 34.3 39.5 35.2 41.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 8 31.7 26.6 28.5 26.5 28.1 27.6 29.6 28.8 31.6 31.1 28.9 24.2 29.8 26.0 31.3 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 S- 7 4.6 4.4 3.2 3.3 4.0 3.7 3.8 4.1 4.6 4.1 3.6 3.9 3.7 3.8 4.7 S- 8 9.2 10.6 9.6 9.2 9.0 9.0 9.2 9.9 10.3 9.4 9.1 10.1 9.8 9.2 10.1 S- 10 0.1 -1.4 -2.2 -3.3 -1.2 -1.6 -1.9 -2.2 -1.5 -2.2 -2.4 -3.2 -2.0 -2.0 -0.4 S- 9 5.6 5.8 5.2 4.2 4.7 4.4 4.3 5.0 5.6 4.8 4.1 4.0 5.3 4.6 6.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.13 3.62 3.72 5.00 4.20 4.07 36.99 33.45 3.54 38.25 34.28 3.98 0.44 8 9.85 9.18 9.3211.11 9.87 9.72 27.83 9.17 28.68 9.57 0.40 10 -1.76-2.00-2.35-1.16-1.41-1.95 39.40-2.40 40.07-1.82 0.58 9 5.12 4.60 4.70 6.08 5.25 4.92 32.62 4.37 33.35 4.90 0.53 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.58 2.52 2.71 2.68 1.01 2.23 2.00 1.12 1.10 8 2.85 2.97 0.91 2.18 1.03 1.12 10 2.48 2.49 1.09 1.82 1.22 1.13 9 2.89 2.99 0.91 1.85 1.21 1.33 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.98(F 7 - 34.28)(1.12) + 38.25 0.95(F 8 - 28.68)(1.03) + 38.25 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 8 10 9 0.935 0.895 0.879 0.864 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.0 39.2 38.8 39.5 39.9 38.5 41.3 46.4 43.4 41.5 38.9 36.8 41.2 37.7 43.4 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 8 32.4 28.0 29.1 30.7 30.8 29.0 32.3 36.7 33.3 31.7 29.8 26.0 31.6 28.1 32.6 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 S- 7 4.9 4.9 3.2 3.2 4.3 3.9 4.0 4.3 4.5 4.4 3.9 4.6 3.8 4.0 5.0 S- 8 9.6 11.1 9.7 8.8 9.0 9.5 9.1 9.7 10.1 9.8 9.1 10.9 9.7 9.5 10.8 S- 10 0.2 -1.5 -2.2 -3.0 -0.4 -1.3 -2.2 -1.9 -1.5 -2.2 -2.7 -4.0 -1.7 -1.8 -0.8 S- 9 5.9 5.3 5.3 3.6 4.5 4.6 3.2 4.4 5.4 4.4 3.7 3.7 5.2 4.8 5.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.28 3.57 4.04 5.14 4.36 4.30 39.42 35.81 3.61 40.56 36.37 4.18 0.57 8 9.99 9.13 9.6611.19 9.97 9.98 30.17 9.25 30.80 9.75 0.50 10 -1.73-2.29-2.09-1.02-1.28-2.09 41.89-2.47 42.35-1.79 0.68 9 4.91 4.39 4.55 5.89 4.95 4.68 35.21 4.21 35.92 4.64 0.42 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.32 2.26 2.03 1.94 1.05 2.45 2.33 1.05 1.00 8 2.54 2.13 0.95 2.53 0.97 1.02 10 2.45 2.14 0.95 2.25 1.09 1.15 9 2.79 2.46 0.83 2.36 1.04 1.25 Suggested regression eqns from two most closely related CDs ( 7 and 8): 0.97(F 7 - 36.37)(1.05) + 40.56 0.95(F 8 - 30.80)(0.97) + 40.56 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 8 4 0.909 0.833 0.822 0.792 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 47.1 46.8 49.2 46.5 46.7 46.4 46.6 50.9 50.1 47.2 44.0 48.1 46.9 45.7 49.2 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 8 38.3 36.5 39.3 38.7 38.9 37.1 36.7 41.4 41.0 38.0 35.3 36.8 36.7 35.8 39.0 cd 4 38.1 36.7 38.7 37.7 37.4 36.8 35.8 39.1 40.7 35.6 34.1 35.4 36.5 35.5 37.7 S- 7 4.3 4.8 4.0 3.4 4.1 3.8 4.4 4.4 4.2 4.6 3.9 5.1 4.3 4.5 4.7 S- 10 -0.2 -0.8 -1.2 -3.0 0.4 -1.1 -1.4 -1.4 -1.1 -1.9 -2.2 -2.1 -1.7 -0.7 -0.2 S- 8 8.8 10.3 9.9 7.8 7.9 9.3 9.9 9.4 9.1 9.3 8.7 11.3 10.2 9.9 10.2 S- 4 9.0 10.1 10.5 8.9 9.4 9.6 10.8 11.7 9.4 11.6 9.9 12.7 10.3 10.2 11.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.43 3.70 4.21 5.36 4.45 4.45 46.55 42.80 3.75 47.43 43.14 4.29 0.54 10 -1.11-1.76-1.46-0.23-0.77-1.41 48.40-1.85 48.67-1.24 0.60 8 9.70 8.87 9.2510.99 9.65 9.79 37.55 9.00 37.97 9.46 0.46 4 10.48 9.5810.3011.5910.2310.81 36.79 9.76 37.0610.37 0.61 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.00 1.89 1.76 1.67 1.05 1.73 1.66 1.04 0.99 10 1.97 1.95 0.90 1.80 0.96 1.07 8 2.04 1.85 0.95 1.74 1.00 1.05 4 1.94 1.78 0.99 1.64 1.05 1.07 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.95(F 7 - 43.14)(1.04) + 47.43 0.91(F 10 - 48.67)(0.96) + 47.43 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 4 8 10 0.899 0.821 0.806 0.797 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 55.6 53.8 59.1 57.2 56.6 55.8 55.2 57.1 60.0 54.2 54.8 56.7 57.1 54.5 55.2 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 cd 4 46.5 43.8 48.5 48.8 47.8 46.7 45.9 46.6 50.5 44.5 46.1 46.2 46.3 44.9 44.6 cd 8 46.1 43.3 49.6 49.2 49.2 47.3 45.8 48.1 51.5 46.0 46.6 46.0 47.1 45.2 45.3 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 S- 7 4.3 4.6 4.3 3.5 3.8 4.0 4.3 4.2 4.5 4.3 3.9 4.8 4.6 4.5 4.4 S- 4 9.1 10.0 10.5 8.5 8.8 9.1 9.3 10.5 9.5 9.7 8.7 10.5 10.7 9.6 10.6 S- 8 9.5 10.5 9.5 8.0 7.3 8.5 9.4 9.0 8.5 8.2 8.2 10.7 10.0 9.3 9.8 S- 10 0.2 -0.5 -0.1 -0.5 0.6 0.1 0.0 -0.8 0.1 -0.9 -0.8 -0.5 -0.2 -0.4 0.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.37 3.63 4.30 5.08 4.42 4.43 55.71 52.01 3.71 56.19 51.92 4.27 0.56 4 9.88 9.1810.0110.58 9.72 9.91 46.40 9.31 46.52 9.68 0.36 8 9.14 8.40 8.8210.02 9.25 9.26 47.25 8.47 47.09 9.10 0.64 10 -0.23-1.15-0.46 0.63 0.16-0.38 56.76-1.05 56.44-0.24 0.81 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.74 1.59 1.56 1.43 1.09 1.68 1.74 0.97 0.89 4 1.71 1.48 1.05 1.73 0.97 0.92 8 1.74 1.57 1.00 2.03 0.83 0.83 10 1.52 1.54 1.02 1.62 1.04 1.02 Suggested regression eqns from two most closely related CDs ( 7 and 4): 0.95(F 7 - 51.92)(0.97) + 56.19 0.91(F 4 - 46.52)(0.97) + 56.19 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 4 12 0.865 0.806 0.790 0.745 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.4 65.5 67.3 67.0 66.1 64.9 65.4 65.3 69.3 63.1 65.8 68.1 65.6 65.9 63.3 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 4 56.2 56.2 56.7 57.8 57.6 56.3 56.4 55.8 60.0 55.0 57.3 57.5 55.6 56.3 54.9 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 S- 7 4.2 4.6 4.5 3.9 3.8 3.9 4.2 4.1 4.7 4.1 4.1 5.0 4.6 4.6 4.2 S- 10 1.2 0.9 0.6 0.2 0.7 1.1 0.8 0.3 1.4 0.4 0.4 1.7 0.6 0.6 1.6 S- 4 8.2 9.3 10.7 9.2 8.6 8.5 9.0 9.5 9.3 8.1 8.6 10.5 9.9 9.6 8.4 S- 12 -2.6 -3.2 -3.4 -4.0 -2.9 -3.0 -3.5 -4.5 -2.6 -3.8 -3.1 -1.8 -4.6 -3.9 -2.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.34 3.60 4.24 5.02 4.42 4.47 65.53 61.88 3.65 65.80 61.50 4.30 0.65 10 0.78-0.27 0.74 1.61 0.90 0.97 65.60-0.06 64.96 0.85 0.91 4 9.31 8.85 9.31 9.72 9.42 9.22 56.71 8.83 56.63 9.17 0.34 12 -3.45-4.34-3.57-2.75-3.31-3.24 69.77-4.24 69.13-3.33 0.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.56 1.33 1.43 1.27 1.12 1.60 1.46 1.09 0.97 10 1.42 1.39 1.03 1.58 1.01 0.98 4 1.27 1.27 1.13 1.24 1.29 1.15 12 1.33 1.16 1.24 1.56 1.02 0.83 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.93(F 7 - 61.50)(1.09) + 65.80 0.90(F 10 - 64.96)(1.01) + 65.80 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 4 0.833 0.753 0.750 0.741 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.7 72.7 73.1 75.2 75.3 74.0 73.0 72.8 77.1 71.1 75.3 74.7 73.9 72.8 72.1 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 4 64.8 64.2 64.0 64.8 65.6 65.4 65.0 63.9 67.1 63.0 65.6 66.1 65.2 63.9 63.5 S- 7 4.7 4.2 4.1 4.1 4.2 4.0 3.9 3.9 4.9 4.3 4.8 4.9 4.4 4.7 4.6 S- 9 7.5 6.5 6.5 6.7 5.7 6.8 6.6 6.4 6.6 6.0 7.0 8.0 6.8 6.3 7.6 S- 10 2.4 1.3 1.3 1.2 1.4 2.7 1.2 0.7 2.3 1.1 1.4 2.4 1.8 1.2 2.4 S- 4 8.8 8.5 9.1 10.4 9.8 8.6 8.0 8.9 10.0 8.2 9.6 8.6 8.8 8.9 8.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.25 3.35 4.11 4.87 4.37 4.65 72.84 69.39 3.45 73.80 69.42 4.37 0.93 9 6.46 5.32 6.23 7.19 6.78 6.91 67.31 5.53 67.04 6.75 1.22 10 1.57 0.36 1.69 2.40 1.67 1.79 72.15 0.69 72.15 1.65 0.95 4 8.74 8.12 8.74 8.82 9.15 8.94 64.67 8.17 64.81 8.98 0.81 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.45 1.20 1.26 1.07 1.17 1.46 1.38 1.06 0.90 9 1.42 1.45 0.87 1.53 0.96 1.10 10 1.30 1.15 1.09 1.40 1.05 0.96 4 1.05 1.22 1.03 1.04 1.40 1.35 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.91(F 7 - 69.42)(1.06) + 73.80 0.87(F 9 - 67.04)(0.96) + 73.80 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 10 0.769 0.725 0.675 0.667 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 79.1 77.1 76.1 77.4 79.2 79.0 77.4 76.9 79.4 75.1 79.3 78.9 79.2 77.1 77.1 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 S- 7 4.8 4.0 4.1 4.0 4.6 4.1 4.2 3.8 4.8 4.4 5.0 4.9 4.7 4.8 5.0 S- 9 7.7 6.6 6.9 6.4 6.5 6.9 6.6 6.7 7.5 6.5 7.2 7.6 6.8 7.3 7.9 S- 6 6.3 6.3 7.2 6.6 6.8 6.1 6.7 7.1 6.5 7.1 7.4 7.9 5.8 6.6 7.6 S- 10 3.0 1.9 1.7 0.8 1.7 3.0 1.5 1.2 2.7 1.0 2.2 2.6 2.7 2.3 3.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.23 3.15 4.00 4.94 4.42 4.79 76.40 73.07 3.33 77.88 73.42 4.47 1.14 9 6.85 5.56 6.85 7.69 7.01 7.27 70.51 5.89 70.87 7.01 1.13 6 6.51 5.10 6.42 7.32 6.85 6.98 70.99 5.41 71.09 6.79 1.38 10 1.92 0.61 2.07 2.71 1.97 2.36 75.44 0.96 75.81 2.08 1.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.37 1.05 0.95 0.92 1.04 1.33 1.18 1.12 1.08 9 1.17 1.06 0.90 1.25 1.06 1.18 6 1.34 1.30 0.73 1.57 0.84 1.16 10 1.07 0.93 1.02 1.08 1.23 1.20 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.88(F 7 - 73.42)(1.12) + 77.88 0.85(F 9 - 70.87)(1.06) + 77.88 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.823 0.761 0.753 0.719 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 78.3 74.2 75.9 75.6 77.8 77.2 75.6 75.2 77.5 74.2 77.9 75.9 77.9 74.9 76.2 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9 S- 7 5.0 3.8 4.3 3.9 5.0 4.3 4.2 3.9 4.9 4.2 4.9 4.7 4.8 4.2 5.2 S- 10 2.9 1.7 2.4 0.7 1.5 2.6 1.6 0.9 2.2 0.4 1.6 2.2 2.8 1.8 2.7 S- 9 8.2 6.8 7.4 5.8 6.9 6.5 6.5 6.1 7.3 5.9 6.8 7.5 7.6 7.3 8.4 S- 8 10.4 9.1 9.4 9.1 10.3 8.8 8.8 9.0 9.4 9.0 9.9 9.6 9.3 8.2 10.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.25 3.17 3.99 5.04 4.49 4.71 75.20 71.85 3.35 76.30 71.81 4.49 1.14 10 1.77 0.58 1.89 2.42 2.05 1.95 74.33 0.87 74.43 1.87 1.01 9 6.85 5.58 6.84 7.65 7.02 7.25 69.36 5.84 69.30 7.00 1.16 8 9.17 7.91 8.8810.17 9.57 9.38 67.05 8.16 66.93 9.37 1.21 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.55 1.19 1.39 1.31 1.06 1.35 1.04 1.29 1.22 10 1.24 1.12 1.25 1.08 1.24 1.00 9 1.38 1.36 1.03 1.21 1.12 1.09 8 1.38 1.68 0.83 1.08 1.25 1.51 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.91(F 7 - 71.81)(1.29) + 76.30 0.87(F 10 - 74.43)(1.24) + 76.30 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.840 0.809 0.768 0.762 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.3 70.4 69.9 68.9 68.3 68.0 69.6 69.6 70.4 66.3 69.5 68.2 71.5 68.8 69.2 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3 S- 7 4.9 4.2 4.0 3.8 4.6 4.4 4.2 4.0 4.7 3.8 4.5 4.9 4.7 4.2 4.9 S- 10 2.3 1.2 1.1 0.3 1.0 1.8 1.5 1.0 2.0 0.1 0.8 1.9 2.4 1.5 2.1 S- 9 7.6 6.1 6.2 5.6 6.4 6.6 7.0 6.4 7.0 5.3 6.2 6.9 7.3 6.7 8.0 S- 8 10.2 9.2 9.0 8.8 9.9 9.1 9.3 9.0 9.3 8.6 9.6 9.8 9.0 8.2 9.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.21 3.13 3.91 5.11 4.46 4.52 68.68 65.38 3.30 69.32 64.95 4.38 1.08 10 1.32 0.20 1.33 2.00 1.58 1.55 68.22 0.46 67.92 1.41 0.95 9 6.55 5.38 6.45 7.49 6.71 6.78 63.15 5.53 62.70 6.63 1.10 8 9.16 7.93 8.7910.34 9.53 9.19 60.57 8.11 60.06 9.26 1.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.63 1.41 1.46 1.37 1.07 1.30 1.22 1.07 1.00 10 1.42 1.31 1.12 1.07 1.22 1.10 9 1.50 1.33 1.10 1.10 1.19 1.08 8 1.57 1.59 0.92 1.25 1.04 1.13 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.92(F 7 - 64.95)(1.07) + 69.32 0.90(F 10 - 67.92)(1.22) + 69.32 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 8 0.829 0.804 0.786 0.751 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 61.1 59.8 62.4 59.5 58.7 57.7 59.9 61.5 60.0 57.9 59.2 60.8 58.8 58.0 58.7 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 S- 7 4.7 3.8 3.9 3.8 4.0 4.3 4.0 4.2 4.4 3.8 4.1 4.7 3.6 4.1 4.1 S- 10 1.7 0.3 -0.7 -1.2 0.2 1.3 0.2 0.7 0.8 -0.6 -0.9 1.4 0.6 0.8 0.8 S- 9 7.5 5.9 4.9 4.7 6.0 6.6 6.5 6.3 6.6 5.0 5.5 6.7 6.8 6.9 7.2 S- 8 9.9 9.0 9.2 8.9 9.0 9.1 9.4 9.0 9.4 8.5 9.3 9.7 8.9 8.5 9.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 4.06 3.03 3.75 5.08 4.33 4.11 59.09 55.94 3.15 59.62 55.53 4.09 0.94 10 0.54-0.39 0.56 1.37 0.74 0.41 59.27-0.19 59.25 0.36 0.55 9 6.26 5.37 6.00 7.22 6.35 6.39 53.73 5.36 53.41 6.20 0.85 8 9.01 7.87 8.4610.21 9.43 9.08 51.17 7.92 50.48 9.14 1.22 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.63 1.45 1.16 1.11 1.05 1.34 1.28 1.05 1.00 10 1.52 0.78 1.48 1.55 0.87 0.58 9 1.66 0.90 1.29 1.63 0.82 0.64 8 1.60 1.18 0.98 1.16 1.15 1.17 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.91(F 7 - 55.53)(1.05) + 59.62 0.90(F 10 - 59.25)(0.87) + 59.62 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 38 0.898 0.861 0.855 0.851 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.9 52.3 50.6 49.1 48.5 47.6 45.4 53.1 50.5 48.1 48.3 52.2 47.0 48.9 48.9 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 7 4.2 3.3 3.8 3.3 3.5 4.1 3.9 4.1 4.1 3.7 3.6 4.4 3.6 4.2 3.8 S- 9 6.7 4.6 4.7 4.7 5.0 6.4 6.0 6.4 6.1 5.3 5.4 5.8 6.0 6.2 6.7 S- 10 0.2 -1.0 -2.0 -1.9 -0.5 0.5 -1.2 0.0 -0.2 -1.0 -1.1 0.1 -0.5 0.2 0.4 S- 38 4.6 2.9 3.2 3.0 3.1 3.9 4.1 4.9 3.9 3.3 4.1 3.5 4.5 3.7 4.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 3.88 2.94 3.56 4.98 4.03 3.91 48.20 45.16 3.04 49.30 45.46 3.83 0.80 9 5.80 5.03 5.37 6.85 5.86 5.93 43.22 4.98 43.56 5.73 0.75 10 -0.36-1.17-0.67 0.61-0.26-0.30 49.29-1.09 49.82-0.52 0.57 38 3.72 2.86 3.29 4.79 3.80 3.95 45.35 2.85 45.48 3.82 0.97 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.04 1.92 1.38 1.48 0.93 2.02 1.99 1.02 1.09 9 2.15 1.54 0.90 2.26 0.90 1.00 10 1.96 1.43 0.97 2.11 0.96 0.99 38 2.17 1.48 0.93 2.20 0.92 0.99 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.95(F 7 - 45.46)(1.02) + 49.30 0.93(F 9 - 43.56)(0.90) + 49.30 Station#1881 WASHINGTON DC/NATION, va 4890602 lat/lon 77.03 38.85 0M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 10 8 0.928 0.907 0.901 0.886 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 39.4 40.7 41.9 40.2 40.7 42.7 39.7 44.9 43.0 42.6 38.4 45.6 37.1 41.3 40.7 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 8 29.0 32.1 32.1 31.5 32.4 34.1 30.3 35.2 33.7 34.1 29.2 36.2 28.5 32.0 35.1 S- 7 4.3 3.0 3.6 3.3 3.6 3.9 3.9 4.6 3.9 3.6 3.4 3.7 3.3 4.3 0.8 S- 9 6.2 4.9 5.2 4.3 4.2 4.7 5.4 5.4 5.9 4.6 4.8 5.8 4.5 6.2 3.4 S- 10 -0.8 -1.8 -2.3 -2.2 -1.4 -0.7 -2.0 -1.1 -1.5 -1.6 -2.8 -0.8 -2.0 -0.5 -2.8 S- 8 10.4 8.7 9.8 8.8 8.2 8.6 9.4 9.8 9.3 8.5 9.3 9.4 8.6 9.3 5.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 3.81 3.11 3.60 4.94 3.96 3.30 40.06 36.91 3.15 41.27 37.72 3.55 0.40 9 5.33 4.67 5.02 6.55 5.31 5.02 35.43 4.63 36.24 5.03 0.40 10 -1.38-2.02-1.70-0.39-1.17-1.71 42.12-2.06 42.90-1.62 0.44 8 9.17 8.35 8.6810.71 9.34 8.57 31.71 8.36 32.36 8.91 0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.52 2.43 1.98 1.96 1.01 2.20 2.15 1.03 1.02 9 2.64 2.20 0.90 2.10 1.05 1.16 10 2.36 1.90 1.04 1.95 1.13 1.08 8 2.70 2.15 0.92 2.31 0.95 1.04 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.96(F 7 - 37.72)(1.03) + 41.27 0.95(F 9 - 36.24)(1.05) + 41.27 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 41.85 44.07 49.47 57.27 65.84 72.40 75.60 74.32 68.87 59.30 50.16 43.98 1952 42.26 43.80 49.02 56.83 66.47 72.14 74.58 72.72 65.24 57.71 47.91 45.19 1953 43.88 46.89 51.30 60.00 68.45 75.61 77.05 75.58 69.19 60.24 51.49 44.56 1954 43.58 45.14 52.16 57.69 66.22 71.64 75.93 75.88 71.02 61.10 49.72 40.90 1955 39.09 43.21 51.69 60.23 66.47 72.81 76.85 77.13 70.34 60.15 48.58 40.40 1956 38.79 42.66 49.19 56.31 65.22 72.59 76.25 74.52 69.21 60.42 54.08 45.81 1957 43.77 42.87 51.26 59.09 68.67 73.93 76.30 75.19 67.53 59.69 50.28 43.44 1958 38.26 37.74 45.26 55.35 64.67 72.28 75.92 75.61 68.78 60.95 49.43 42.39 1959 38.68 43.28 50.53 59.38 68.25 74.09 77.29 76.23 71.35 61.86 52.32 44.58 1960 41.51 39.36 46.59 54.71 67.08 71.72 76.05 75.20 69.87 60.93 48.86 40.14 1961 37.43 42.99 49.88 56.49 63.48 71.37 75.87 76.52 70.43 62.11 50.42 43.10 1962 39.34 41.32 47.96 57.52 67.03 72.68 74.72 73.00 68.52 59.39 48.91 40.35 1963 36.04 41.49 49.23 58.92 65.63 71.46 75.15 73.34 67.85 59.99 48.83 42.25 1964 37.78 43.15 48.62 58.00 66.20 72.65 75.02 73.55 66.51 59.72 51.67 46.10 1965 41.78 41.34 46.87 56.61 65.93 72.85 75.12 75.38 69.12 60.43 50.62 42.91 1966 39.09 41.10 47.95 56.59 64.42 72.05 75.78 74.61 67.89 59.11 49.40 44.46 1967 40.57 43.52 49.02 56.57 64.42 69.65 74.20 72.45 66.69 56.82 48.99 41.06 1968 37.52 40.33 47.73 57.56 65.06 72.07 76.74 75.43 69.98 61.48 51.11 42.50 1969 37.70 39.26 47.12 56.09 66.90 73.24 76.39 74.18 68.06 59.23 49.09 39.81 1970 37.00 38.81 46.95 56.33 66.75 73.39 76.12 75.99 71.51 63.17 52.56 43.24 1971 39.74 40.87 47.68 55.59 65.41 72.45 76.10 75.11 71.47 63.00 55.79 48.13 1972 44.78 43.90 48.35 56.64 64.13 70.96 74.42 74.38 67.71 59.05 51.36 45.16 1973 41.82 43.61 49.87 58.14 65.83 72.63 77.05 76.48 71.14 62.92 52.96 48.13 1974 44.56 47.53 51.84 59.97 66.21 71.67 74.83 74.45 67.92 59.23 50.53 45.45 1975 43.44 44.57 48.17 56.10 65.15 72.83 76.34 75.01 70.58 62.64 53.31 44.62 1976 42.98 46.62 54.18 59.14 66.26 71.93 75.46 74.15 67.17 56.67 46.10 36.48 1977 35.56 40.54 51.98 60.34 66.58 73.03 77.24 77.77 70.09 61.08 50.07 42.29 1978 35.27 36.54 44.20 54.55 64.08 70.32 75.48 74.86 68.87 60.93 52.25 45.71 1979 38.25 40.40 46.83 58.45 64.80 70.82 74.07 74.33 68.79 61.31 52.16 44.98 1980 38.60 39.55 46.55 57.34 66.49 73.41 77.55 77.94 70.50 59.68 48.13 39.40 1981 38.11 39.71 49.68 56.51 67.42 73.05 76.29 73.51 66.79 58.35 48.05 39.67 1982 37.27 40.76 48.18 56.97 65.07 72.48 74.54 73.55 67.28 60.09 52.74 45.72 1983 41.46 42.47 48.02 56.27 63.81 71.97 76.30 75.68 69.35 60.22 49.34 40.28 1984 38.21 39.88 47.19 54.79 65.76 72.74 76.13 73.74 70.37 61.00 54.74 44.00 1985 41.35 41.70 51.19 59.96 67.22 72.18 74.59 73.96 69.11 63.17 52.13 43.89 1986 38.64 42.76 49.81 58.64 67.56 74.76 76.79 74.77 68.50 60.67 51.05 42.10 1987 37.65 39.53 45.78 55.67 64.75 73.23 76.56 75.51 66.76 58.11 48.52 41.64 1988 37.83 39.61 47.08 55.07 63.51 71.62 76.88 75.83 67.57 58.44 49.22 45.34 1989 41.96 44.35 48.50 55.98 65.24 72.58 76.54 75.03 69.44 60.97 47.70 42.63 1990 41.84 49.01 53.07 58.63 65.70 72.87 76.55 75.09 69.76 61.93 54.67 47.28 1991 44.63 45.88 52.23 61.00 68.49 74.85 76.92 75.97 69.35 60.22 51.93 45.59 1992 43.29 43.71 49.21 55.43 63.04 70.11 73.68 74.30 67.00 60.03 50.18 45.32 1993 40.85 41.99 46.69 56.25 65.92 74.16 77.64 76.92 69.76 61.14 50.04 41.77 1994 38.33 42.29 51.75 58.92 67.77 73.15 77.07 74.74 67.82 60.92 53.28 47.37 1995 42.35 43.63 49.51 58.42 65.96 72.94 76.99 75.70 70.00 59.73 49.08 40.37 1996 37.93 40.48 47.85 56.41 66.44 72.26 75.32 74.02 68.57 58.70 50.30 43.58 1997 43.67 45.76 50.44 56.34 63.18 71.26 75.09 74.81 68.68 59.91 50.18 42.82 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.973 0.936 0.930 0.925 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.5 38.2 41.3 38.6 37.7 37.8 42.0 41.8 44.6 43.3 40.8 38.3 42.3 37.9 43.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 S- 10 0.8 -0.3 1.1 -0.3 -0.7 -0.3 1.3 0.9 1.2 0.6 0.5 0.8 0.9 0.7 1.9 S- 9 6.2 6.8 8.5 7.1 5.2 5.7 7.4 8.1 8.3 7.5 7.0 8.0 8.2 7.3 8.2 S- 7 5.2 5.5 6.5 6.3 4.5 5.0 7.0 7.3 7.2 6.9 6.5 8.0 6.5 6.5 7.0 S- 13 -1.8 -3.5 -2.1 -3.9 -3.8 -3.1 -2.3 -2.8 -1.2 -2.7 -2.1 -2.7 -1.3 -2.9 -1.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.85 0.79 0.98 1.20 0.39 0.93 40.27 39.40 0.87 40.67 40.07 0.59 -0.28 9 7.74 7.40 8.04 8.44 7.05 7.79 32.62 7.65 33.35 7.32 -0.33 7 6.75 6.42 7.06 7.36 6.00 6.95 33.45 6.82 34.28 6.39 -0.43 13 -2.46-2.76-2.44-2.06-2.92-2.00 42.99-2.72 43.16-2.49 0.22 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.62 2.48 2.45 2.49 0.98 2.29 1.82 1.26 1.28 9 2.89 2.99 0.82 1.85 1.24 1.52 7 2.52 2.68 0.91 2.00 1.15 1.26 13 2.54 2.78 0.88 1.66 1.38 1.57 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.99(F 10 - 40.07)(1.26) + 40.67 0.97(F 9 - 33.35)(1.24) + 40.67 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 9 0.979 0.942 0.940 0.929 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 42.5 39.9 41.7 42.8 39.5 39.6 44.3 49.0 45.9 43.7 42.0 42.3 43.6 40.5 45.8 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 12 47.1 47.8 47.5 49.5 46.5 45.8 50.8 54.5 51.2 49.7 48.4 49.0 48.8 46.9 52.0 cd 13 44.4 45.1 44.7 46.7 43.9 43.1 47.7 51.4 48.0 47.2 44.8 45.3 46.0 43.4 48.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 S- 10 0.7 -0.8 0.8 0.2 -0.7 -0.2 0.8 0.8 0.9 0.1 0.4 1.5 0.7 1.1 1.6 S- 12 -4.6 -7.9 -5.8 -6.8 -6.9 -6.2 -6.5 -5.5 -5.3 -6.0 -6.4 -6.8 -5.2 -6.4 -6.2 S- 13 -1.9 -5.2 -3.0 -3.9 -4.4 -3.5 -3.3 -2.4 -2.1 -3.5 -2.8 -3.0 -2.4 -2.9 -3.2 S- 9 6.4 6.0 8.2 6.9 4.2 5.7 6.2 7.0 7.9 6.7 6.8 9.1 7.6 7.7 7.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.74 0.58 0.96 1.00 0.29 0.89 42.62 41.89 0.73 42.87 42.35 0.52 -0.21 12 -5.96-5.97-5.62-5.90-6.30-6.04 48.54-5.92 49.03-6.16 -0.24 13 -3.07-3.31-2.79-2.83-3.50-2.83 45.76-3.14 46.03-3.16 -0.02 9 7.37 7.26 7.60 7.91 6.52 7.65 35.21 7.41 35.92 6.95 -0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.59 2.45 2.14 2.14 1.00 2.55 2.25 1.14 1.14 12 2.68 2.35 0.91 2.27 1.13 1.24 13 2.57 2.47 0.86 2.21 1.16 1.34 9 2.79 2.46 0.87 2.36 1.08 1.24 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.99(F 10 - 42.35)(1.14) + 42.87 0.97(F 12 - 49.03)(1.13) + 42.87 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 13 12 9 0.974 0.919 0.914 0.914 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 48.0 47.2 51.2 49.8 45.8 47.1 48.5 53.1 52.2 49.2 46.7 51.8 49.5 47.8 50.4 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 cd 12 52.4 54.0 55.9 56.5 51.8 53.2 54.7 58.2 57.4 54.7 51.8 56.8 55.0 52.7 56.5 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 S- 10 0.7 -0.4 0.8 0.3 -0.6 -0.4 0.5 0.8 1.0 0.1 0.5 1.5 0.9 1.5 1.1 S- 13 -2.1 -4.1 -2.5 -4.4 -4.2 -4.0 -3.8 -2.3 -2.6 -3.3 -2.3 -2.2 -3.1 -2.2 -3.2 S- 12 -4.4 -6.8 -4.8 -6.7 -6.0 -6.1 -6.2 -5.1 -5.2 -5.5 -5.1 -5.0 -5.5 -4.9 -6.1 S- 9 6.1 5.7 7.5 5.7 3.9 5.1 6.3 6.9 7.0 6.0 6.8 8.2 7.3 8.0 7.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.80 0.78 0.95 1.04 0.32 0.94 49.27 48.40 0.87 49.22 48.67 0.55 -0.32 13 -2.97-2.84-3.07-2.76-3.42-2.70 52.13-2.86 52.32-3.09 -0.24 12 -5.31-5.04-5.36-5.10-5.73-5.32 54.41-5.14 54.77-5.55 -0.41 9 6.86 7.11 6.74 7.21 6.13 7.21 42.19 7.08 42.70 6.52 -0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.15 1.97 1.92 1.95 0.99 2.11 1.80 1.18 1.19 13 1.96 2.04 0.94 1.92 1.10 1.17 12 1.96 1.90 1.01 2.02 1.05 1.03 9 2.04 2.10 0.91 1.69 1.25 1.37 Suggested regression eqns from two most closely related CDs ( 10 and 13): 0.99(F 10 - 48.67)(1.18) + 49.22 0.96(F 13 - 52.32)(1.10) + 49.22 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 12 13 7 0.958 0.879 0.877 0.873 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.3 54.8 60.0 58.6 55.7 55.1 56.0 58.6 61.0 55.4 56.3 58.9 58.4 56.4 56.3 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 12 60.1 60.6 63.7 62.9 60.5 60.7 60.8 63.3 65.2 59.9 60.2 62.7 63.6 60.8 61.7 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 cd 7 51.3 49.2 54.8 53.7 52.8 51.8 50.9 52.9 55.5 50.0 50.9 51.9 52.4 50.0 50.7 S- 10 0.8 0.5 0.8 1.0 -0.3 -0.6 0.8 0.7 1.1 0.3 0.6 1.7 1.1 1.5 1.3 S- 12 -3.8 -5.8 -3.7 -4.3 -4.9 -5.6 -4.9 -4.6 -4.2 -4.5 -3.9 -3.8 -5.1 -4.4 -5.4 S- 13 -1.8 -3.2 -1.9 -2.5 -3.7 -3.9 -2.6 -2.3 -1.8 -2.5 -1.7 -1.5 -3.1 -2.1 -2.7 S- 7 5.0 5.6 5.2 4.9 2.9 3.2 5.1 5.7 5.5 5.5 5.3 7.0 6.0 6.4 5.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.88 0.77 1.00 1.12 0.49 1.09 57.63 56.76 0.86 57.19 56.44 0.75 -0.11 12 -4.42-4.30-4.43-4.20-4.72-4.47 61.92-4.29 61.78-4.59 -0.30 13 -2.51-2.58-2.70-2.18-2.81-2.19 60.19-2.57 59.67-2.48 0.08 7 5.48 5.55 5.76 5.57 4.75 5.90 52.01 5.62 51.92 5.26 -0.36 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.66 1.52 1.59 1.54 1.04 1.84 1.62 1.14 1.10 12 1.46 1.46 1.09 1.58 1.17 1.07 13 1.53 1.59 1.00 1.57 1.17 1.18 7 1.59 1.43 1.11 1.74 1.06 0.96 Suggested regression eqns from two most closely related CDs ( 10 and 12): 0.98(F 10 - 56.44)(1.14) + 57.19 0.94(F 12 - 61.78)(1.17) + 57.19 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 12 9 0.938 0.910 0.860 0.843 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 63.8 65.8 67.2 67.6 64.8 63.5 65.2 65.7 68.5 63.0 65.9 67.8 66.0 66.4 63.2 cd 10 63.2 64.6 66.7 66.7 65.4 63.8 64.6 65.0 67.9 62.8 65.4 66.3 65.0 65.3 61.7 cd 7 60.2 60.9 62.8 63.1 62.3 60.9 61.2 61.3 64.7 59.0 61.8 63.0 61.0 61.3 59.1 cd 12 67.0 68.8 70.7 71.0 69.1 67.8 68.9 69.8 71.9 67.0 68.9 69.9 70.2 69.8 66.2 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 S- 10 0.6 1.2 0.5 0.8 -0.6 -0.3 0.6 0.7 0.6 0.3 0.5 1.4 1.0 1.2 1.5 S- 7 3.7 4.8 4.4 4.5 2.4 2.6 4.0 4.4 3.8 4.0 4.2 4.7 5.0 5.1 4.0 S- 12 -3.2 -3.0 -3.5 -3.4 -4.3 -4.3 -3.7 -4.1 -3.5 -3.9 -3.0 -2.1 -4.2 -3.4 -3.0 S- 9 5.8 6.2 6.0 5.8 3.7 4.2 6.8 6.3 4.7 5.1 5.9 7.2 6.2 6.2 7.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.83 0.64 1.04 1.09 0.49 0.92 66.37 65.60 0.78 65.62 64.96 0.67 -0.11 7 4.39 4.50 4.54 4.49 4.01 4.42 61.88 4.49 61.50 4.12 -0.37 12 -3.40-3.43-3.28-3.27-3.72-3.29 69.77-3.40 69.13-3.51 -0.11 9 5.85 5.86 5.58 6.12 5.69 6.05 60.56 5.81 59.81 5.82 0.00 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.41 1.42 1.36 1.39 0.98 1.66 1.58 1.05 1.07 7 1.33 1.27 1.07 1.46 1.13 1.06 12 1.33 1.16 1.17 1.56 1.06 0.91 9 1.51 1.56 0.87 1.75 0.95 1.09 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.97(F 10 - 64.96)(1.05) + 65.62 0.95(F 7 - 61.50)(1.13) + 65.62 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 12 0.899 0.849 0.802 0.778 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.0 72.7 72.2 74.8 73.2 71.6 72.6 72.9 74.8 70.1 74.2 73.2 72.9 72.3 71.3 cd 10 71.3 71.4 71.8 74.0 74.0 71.3 71.8 72.2 74.8 70.1 73.8 72.3 72.2 71.6 69.7 cd 7 68.9 68.5 69.1 71.1 71.1 70.1 69.1 68.9 72.2 66.8 70.5 69.8 69.5 68.1 67.5 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 12 74.7 74.8 75.7 77.6 76.4 74.1 75.2 76.3 77.5 74.1 77.2 75.1 75.8 76.0 73.2 S- 10 0.7 1.3 0.4 0.8 -0.8 0.3 0.8 0.7 0.1 0.0 0.3 0.8 0.8 0.6 1.6 S- 7 3.0 4.2 3.1 3.7 2.1 1.6 3.5 4.0 2.7 3.3 3.7 3.3 3.4 4.2 3.7 S- 9 5.8 6.6 5.6 6.2 3.6 4.5 6.2 6.5 4.4 5.0 5.9 6.5 5.8 5.7 6.8 S- 12 -2.8 -2.1 -3.5 -2.9 -3.2 -2.5 -2.7 -3.4 -2.7 -4.0 -3.0 -1.9 -2.9 -3.8 -2.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.68 0.38 0.86 1.02 0.53 0.61 72.68 72.15 0.53 72.71 72.15 0.56 0.03 7 3.36 3.37 3.28 3.50 3.23 3.46 69.39 3.29 69.42 3.29 0.00 9 5.57 5.34 5.40 5.82 5.64 5.73 67.31 5.37 67.04 5.67 0.30 12 -2.69-2.90-2.41-2.43-2.91-2.89 75.47-2.79 75.59-2.88 -0.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.17 1.30 1.09 1.15 0.95 1.23 1.40 0.88 0.92 7 1.20 1.07 1.02 1.38 0.89 0.87 9 1.42 1.45 0.75 1.53 0.80 1.07 12 1.23 1.04 1.05 1.25 0.98 0.94 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.95(F 10 - 72.15)(0.88) + 72.71 0.92(F 7 - 69.42)(0.89) + 72.71 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 38 0.796 0.771 0.725 0.654 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 76.3 76.1 74.6 76.8 76.6 76.9 76.5 76.6 76.9 73.7 77.6 77.1 77.0 75.3 75.1 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 S- 10 0.2 1.0 0.2 0.2 -1.0 0.8 0.6 0.8 0.2 -0.3 0.4 0.8 0.5 0.6 1.1 S- 7 2.0 3.1 2.6 3.4 1.9 1.9 3.3 3.4 2.3 3.0 3.3 3.1 2.5 3.0 3.0 S- 9 4.9 5.7 5.5 5.8 3.8 4.8 5.8 6.3 5.0 5.1 5.5 5.8 4.6 5.6 5.9 S- 38 1.1 2.8 2.6 2.7 1.8 2.0 3.7 4.0 2.5 3.3 3.3 3.6 1.7 2.9 3.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.57 0.21 0.79 0.94 0.39 0.46 75.85 75.44 0.41 76.20 75.81 0.40 -0.01 7 2.87 2.75 2.72 3.17 2.84 2.88 73.07 2.78 73.42 2.79 0.01 9 5.50 5.16 5.57 5.92 5.42 5.36 70.51 5.34 70.87 5.33 0.00 38 2.68 1.93 2.93 3.01 2.66 2.96 73.63 2.22 73.43 2.77 0.55 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 0.99 1.07 0.80 0.93 0.86 1.04 1.08 0.96 1.12 7 1.05 0.92 0.87 1.18 0.88 1.01 9 1.17 1.06 0.75 1.25 0.83 1.10 38 1.33 1.30 0.61 1.39 0.74 1.21 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.89(F 10 - 75.81)(0.96) + 76.20 0.88(F 7 - 73.42)(0.88) + 76.20 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 12 0.888 0.829 0.827 0.778 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 75.7 73.7 74.0 74.8 75.5 75.8 75.0 75.1 76.0 74.3 76.9 74.7 75.7 74.0 74.8 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 12 78.3 75.8 76.6 78.6 78.9 77.7 77.1 78.2 78.0 77.8 79.3 76.3 77.7 76.7 76.9 S- 10 0.3 1.2 0.5 -0.1 -0.8 1.2 1.0 0.8 0.6 0.4 0.6 1.1 0.6 0.9 1.3 S- 7 2.3 3.3 2.3 3.0 2.7 2.9 3.7 3.8 3.3 4.2 3.9 3.6 2.6 3.3 3.8 S- 9 5.5 6.3 5.5 5.0 4.6 5.1 6.0 6.0 5.8 6.0 5.8 6.4 5.3 6.4 7.0 S- 12 -2.6 -2.0 -2.7 -3.9 -3.4 -1.9 -2.1 -3.1 -2.0 -3.5 -2.4 -1.6 -2.0 -2.7 -2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.73 0.42 0.91 1.01 0.57 0.78 74.94 74.33 0.61 75.07 74.43 0.64 0.03 7 3.22 3.02 3.01 3.63 3.00 3.54 71.85 3.09 71.81 3.26 0.17 9 5.81 5.43 5.86 6.23 5.54 6.08 69.36 5.58 69.30 5.77 0.18 12 -2.27-2.46-2.06-1.83-2.67-2.34 77.28-2.34 77.61-2.53 -0.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.21 1.24 1.28 1.12 1.15 0.85 1.08 0.78 0.68 7 1.19 1.31 0.98 1.04 0.81 0.83 9 1.38 1.36 0.95 1.21 0.70 0.74 12 1.09 0.92 1.39 0.97 0.87 0.63 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.94(F 10 - 74.43)(0.78) + 75.07 0.91(F 7 - 71.81)(0.81) + 75.07 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 8 0.912 0.894 0.875 0.849 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 69.3 70.4 69.1 68.5 66.8 67.6 69.4 69.8 69.3 67.0 69.8 67.8 70.0 68.6 68.7 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3 S- 10 0.4 1.1 0.3 -0.1 -0.5 1.4 1.3 1.2 0.9 0.8 1.1 1.5 0.9 1.3 1.6 S- 7 3.0 4.1 3.2 3.4 3.1 4.0 4.1 4.2 3.6 4.5 4.8 4.5 3.2 3.9 4.4 S- 9 5.6 6.1 5.4 5.2 4.9 6.2 6.8 6.6 5.9 6.0 6.5 6.5 5.8 6.5 7.5 S- 8 8.2 9.2 8.2 8.4 8.4 8.7 9.2 9.2 8.2 9.3 9.9 9.4 7.5 8.0 9.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.92 0.51 1.11 1.14 0.73 1.16 68.92 68.22 0.70 68.80 67.92 0.89 0.19 7 3.81 3.45 3.70 4.26 3.61 4.14 65.38 3.54 64.95 3.86 0.32 9 6.15 5.70 6.23 6.63 5.86 6.39 63.15 5.77 62.70 6.11 0.34 8 8.76 8.25 8.58 9.49 8.68 8.81 60.57 8.35 60.06 8.74 0.39 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.46 1.42 1.60 1.31 1.22 1.06 1.07 1.00 0.82 7 1.41 1.37 1.17 1.22 0.87 0.75 9 1.50 1.33 1.20 1.10 0.97 0.81 8 1.57 1.59 1.01 1.25 0.85 0.84 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.96(F 10 - 67.92)(1.00) + 68.80 0.95(F 7 - 64.95)(0.87) + 68.80 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 13 0.942 0.915 0.909 0.890 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.2 61.0 63.2 60.7 58.1 58.4 61.0 61.9 60.2 60.0 61.1 60.9 59.7 58.7 59.9 cd 10 59.5 59.6 63.1 60.7 58.4 56.4 59.7 60.7 59.2 58.6 60.1 59.4 58.2 57.3 57.9 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 10 0.8 1.4 0.1 0.0 -0.3 2.0 1.3 1.2 1.0 1.5 1.0 1.5 1.5 1.4 2.0 S- 9 6.6 7.0 5.6 5.8 5.4 7.4 7.6 6.8 6.8 7.0 7.4 6.7 7.7 7.6 8.4 S- 7 3.8 4.9 4.6 4.9 3.4 5.0 5.1 4.7 4.6 5.9 6.0 4.8 4.5 4.8 5.3 S- 13 -0.7 -0.6 -1.8 -2.4 -1.7 -0.4 -0.1 -0.9 -0.2 -0.2 -0.4 0.1 0.0 -0.3 0.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.14 0.85 1.33 1.31 0.87 1.41 60.27 59.27 0.99 60.34 59.25 1.09 0.10 9 6.85 6.61 6.77 7.16 6.48 7.39 53.73 6.54 53.41 6.93 0.40 7 4.65 4.27 4.53 5.03 4.46 5.12 55.94 4.32 55.53 4.82 0.49 13 -0.72-1.20-0.56-0.51-1.05-0.08 61.38-1.11 60.96-0.61 0.50 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.51 1.52 1.05 0.78 1.34 1.28 1.55 0.83 0.62 9 1.66 0.90 1.16 1.63 0.78 0.67 7 1.45 1.11 0.95 1.28 1.00 1.06 13 1.52 0.79 1.32 1.60 0.80 0.60 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.97(F 10 - 59.25)(0.83) + 60.34 0.96(F 9 - 53.41)(0.78) + 60.34 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 7 38 0.960 0.936 0.929 0.921 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 49.3 54.7 52.1 51.0 48.5 49.2 47.7 54.7 51.9 50.2 50.0 53.3 49.1 50.3 50.2 cd 10 48.7 53.3 52.5 51.1 49.0 47.1 46.5 53.1 50.8 49.0 49.4 52.0 47.6 48.7 48.5 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 38 44.3 49.4 47.4 46.1 45.4 43.7 41.3 48.2 46.6 44.8 44.2 48.7 42.6 45.1 44.4 S- 10 0.7 1.5 -0.4 0.0 -0.5 2.1 1.2 1.6 1.2 1.1 0.6 1.2 1.5 1.6 1.6 S- 9 7.2 7.1 6.3 6.6 5.0 8.0 8.3 7.9 7.5 7.4 7.2 6.9 8.0 7.7 7.9 S- 7 4.6 5.8 5.3 5.2 3.5 5.7 6.2 5.7 5.5 5.8 5.4 5.5 5.6 5.6 5.0 S- 38 5.1 5.3 4.7 4.9 3.1 5.5 6.4 6.5 5.3 5.4 5.9 4.6 6.5 5.2 5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 1.11 0.83 1.21 1.45 0.83 1.28 50.22 49.29 0.93 50.82 49.82 1.00 0.08 9 7.27 7.03 7.24 7.69 6.94 7.51 43.22 7.00 43.56 7.26 0.26 7 5.35 4.94 5.44 5.82 5.12 5.49 45.16 5.06 45.46 5.36 0.31 38 5.19 4.86 5.16 5.63 4.88 5.53 45.35 4.87 45.48 5.35 0.48 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.05 1.96 1.58 1.43 1.11 2.06 2.11 0.98 0.88 9 2.15 1.54 1.03 2.26 0.91 0.89 7 1.92 1.48 1.07 1.99 1.04 0.97 38 2.17 1.48 1.07 2.20 0.94 0.88 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.98(F 10 - 49.82)(0.98) + 50.82 0.97(F 9 - 43.56)(0.91) + 50.82 Station#1882 WILLIAMSBURG/2 N , va 4915101 lat/lon 76.70 37.27 9M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 9 13 12 0.971 0.943 0.935 0.932 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 40.3 44.0 43.9 42.1 41.6 45.3 42.6 47.3 45.6 45.3 41.8 47.4 40.4 43.6 42.8 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 12 46.6 48.0 50.1 49.8 47.8 49.8 48.2 51.7 49.2 50.6 47.5 51.6 45.7 48.4 48.9 S- 10 0.1 1.4 -0.3 -0.4 -0.4 1.9 0.9 1.3 1.0 1.0 0.6 1.0 1.2 1.8 -0.7 S- 9 7.1 8.2 7.2 6.2 5.2 7.3 8.3 7.8 8.4 7.3 8.1 7.5 7.8 8.4 5.5 S- 13 -2.9 -1.1 -2.6 -3.3 -2.7 -1.0 -2.2 -0.7 -0.9 -0.8 -1.4 -0.4 -1.4 -1.0 -2.0 S- 12 -6.3 -4.0 -6.2 -7.7 -6.2 -4.5 -5.6 -4.4 -3.6 -5.3 -5.7 -4.3 -5.4 -4.8 -6.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 0.97 0.81 1.19 1.30 0.64 0.85 43.07 42.12 0.95 43.60 42.90 0.70 -0.25 9 7.68 7.50 7.91 8.24 7.12 7.58 35.43 7.64 36.24 7.35 -0.29 13 -1.66-2.25-1.57-1.20-1.97-1.13 45.11-2.04 45.23-1.63 0.41 12 -4.99-5.14-4.59-4.69-5.50-5.03 48.06-4.99 48.94-5.34 -0.35 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 2.50 2.36 1.93 1.90 1.02 2.17 1.95 1.11 1.10 9 2.64 2.20 0.88 2.10 1.03 1.18 13 2.24 1.95 0.99 1.65 1.31 1.33 12 2.40 2.02 0.95 1.66 1.30 1.36 Suggested regression eqns from two most closely related CDs ( 10 and 9): 0.99(F 10 - 42.90)(1.11) + 43.60 0.97(F 9 - 36.24)(1.03) + 43.60 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.16 39.11 44.98 53.45 62.63 69.88 73.43 72.66 67.38 56.40 45.99 39.00 1952 38.60 40.12 45.30 53.07 63.98 71.92 75.72 73.06 65.04 56.04 45.91 40.67 1953 38.66 41.92 47.00 55.79 64.99 72.94 75.57 73.95 67.71 57.86 48.24 39.80 1954 38.37 39.68 47.81 53.90 63.75 69.42 73.84 73.09 67.73 57.61 45.93 36.83 1955 34.43 38.09 46.82 56.46 63.85 71.02 74.88 74.73 67.15 55.80 44.00 35.70 1956 34.40 38.02 44.73 52.74 62.57 69.82 73.22 70.73 64.98 55.79 49.08 40.52 1957 38.61 38.39 47.02 55.54 65.67 71.95 74.76 73.57 65.71 56.62 46.30 39.05 1958 33.31 33.05 40.89 51.91 62.04 69.39 72.83 72.38 65.52 57.23 44.85 36.59 1959 33.02 37.52 46.10 55.80 65.47 71.64 75.23 74.45 68.74 57.47 47.15 39.50 1960 36.42 34.19 41.75 50.54 63.44 68.38 73.42 72.29 66.52 57.15 44.24 34.88 1961 31.39 37.47 44.70 52.03 60.19 68.94 74.31 74.71 69.00 59.71 47.02 38.40 1962 33.95 36.33 43.32 54.19 64.32 70.38 72.59 70.27 65.60 55.25 43.95 34.39 1963 29.70 35.29 43.98 55.22 63.34 69.78 73.06 71.10 66.08 58.09 45.83 36.72 1964 31.31 36.92 43.39 54.26 63.66 71.40 73.76 71.70 63.84 55.73 45.77 38.84 1965 34.75 35.84 42.90 53.80 63.77 71.18 73.06 72.90 65.80 56.79 47.16 38.76 1966 34.33 36.11 42.99 52.44 61.32 70.86 75.15 72.71 64.07 54.25 44.24 39.55 1967 34.72 37.58 43.38 52.28 61.65 67.36 71.71 69.10 62.51 52.37 43.30 34.31 1968 31.01 34.89 44.42 53.91 62.08 68.83 74.43 72.68 66.25 56.30 44.95 36.24 1969 32.02 34.68 43.64 54.10 65.12 71.24 73.53 71.28 64.32 54.37 42.83 33.46 1970 30.54 33.14 42.40 53.23 64.07 71.07 73.59 73.63 68.07 58.51 46.89 36.44 1971 33.22 34.79 43.47 51.79 62.33 69.32 72.81 71.70 66.96 58.13 49.49 41.45 1972 37.53 37.28 43.05 52.84 61.09 68.09 71.55 71.92 64.40 54.13 44.90 39.17 1973 36.68 39.66 45.59 54.10 61.93 69.27 74.10 72.94 67.20 58.35 47.40 41.49 1974 37.22 40.50 45.97 55.10 62.17 67.99 71.41 70.76 63.89 54.93 45.71 40.10 1975 36.87 38.17 42.32 52.10 62.05 69.99 73.08 70.48 65.66 57.21 48.00 38.27 1976 36.21 40.83 49.79 55.65 63.33 68.54 71.33 68.82 61.65 51.83 40.98 30.90 1977 29.27 35.41 47.74 57.71 64.47 71.30 74.29 73.81 65.47 55.87 44.00 34.66 1978 27.40 29.77 39.44 51.63 62.05 68.52 73.03 72.23 65.51 55.92 45.73 37.73 1979 30.43 33.88 41.69 54.00 60.15 66.35 69.79 69.04 62.81 54.79 45.86 38.41 1980 32.38 33.45 40.99 52.16 61.26 68.56 72.33 73.01 65.25 54.05 42.30 34.02 1981 32.22 34.11 44.19 51.99 62.18 67.65 71.06 69.40 61.57 53.01 41.70 32.86 1982 29.45 32.76 41.71 51.82 60.53 68.10 69.37 68.30 62.41 55.27 47.18 39.00 1983 34.40 35.44 41.57 50.15 58.96 67.43 72.89 71.77 64.65 53.92 41.80 32.11 1984 30.15 32.17 40.23 47.78 59.86 67.59 72.12 69.34 65.02 54.34 47.16 36.17 1985 33.54 34.04 43.61 52.96 61.22 67.31 70.32 69.72 63.54 56.51 45.18 37.15 1986 30.96 34.34 41.79 51.91 61.45 68.97 71.76 70.53 63.98 54.27 43.58 34.70 1987 31.82 34.59 41.43 51.37 61.21 70.27 73.73 71.67 62.08 53.03 43.45 35.48 1988 31.24 32.60 41.07 50.29 59.79 68.58 73.64 71.54 62.22 52.23 42.47 37.66 1989 33.59 36.32 41.31 49.96 60.10 68.29 72.03 69.93 63.42 54.02 39.37 33.96 1990 32.84 40.92 45.16 51.95 60.28 68.10 71.82 70.01 63.57 55.28 46.43 38.16 1991 34.94 36.61 43.82 54.30 63.78 72.44 74.65 72.68 64.83 54.42 44.93 37.20 1992 34.57 35.48 41.65 48.75 57.57 65.38 69.29 68.91 61.12 53.07 42.62 37.43 1993 32.84 34.32 39.01 49.80 60.58 69.84 73.77 72.97 64.76 54.42 42.91 33.05 1994 28.96 31.56 42.45 50.94 62.03 68.83 73.45 70.29 62.06 54.42 45.80 40.06 1995 33.90 36.11 41.33 51.14 59.74 68.41 73.88 71.92 65.37 53.12 42.07 32.89 1996 30.58 32.18 39.80 48.86 60.82 67.45 71.53 69.44 63.33 52.49 42.99 35.62 1997 35.36 37.87 43.27 49.39 57.65 66.41 71.40 70.02 63.06 52.89 43.36 35.95 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 7 10 0.872 0.872 0.865 0.862 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 34.4 30.1 33.5 31.0 31.8 31.2 33.6 32.8 34.9 34.6 32.8 29.0 33.9 30.6 35.4 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 S- 9 -0.8 -1.2 0.7 -0.6 -0.6 -0.9 -0.9 -0.9 -1.4 -1.2 -1.0 -1.4 -0.3 0.0 -0.1 S- 38 -3.7 -2.3 -0.1 -2.5 -3.2 -2.7 -3.0 -3.0 -2.7 -3.6 -2.7 -3.1 -2.3 -1.9 -2.0 S- 7 -1.8 -2.6 -1.3 -1.4 -1.3 -1.6 -1.4 -1.7 -2.5 -1.8 -1.5 -1.4 -1.9 -0.8 -1.3 S- 10 -6.3 -8.4 -6.8 -8.0 -6.5 -6.9 -7.1 -8.1 -8.5 -8.2 -7.5 -8.6 -7.6 -6.6 -6.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.10 2.43 1.99 1.66-0.37-0.76 34.87 32.62 2.25 32.65 33.35-0.70 -2.95 38 -0.90 0.12-0.06-0.09-2.36-2.62 34.82 0.06 35.24-2.59 -2.65 7 0.11 1.45 1.01 0.58-1.41-1.61 33.45 1.42 34.28-1.63 -3.05 10 -5.78-4.17-5.07-5.58-7.02-7.63 39.40-4.52 40.07-7.43 -2.90 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.81 2.89 2.80 2.99 0.94 1.87 1.85 1.01 1.08 38 3.07 3.13 0.89 2.04 0.91 1.02 7 2.52 2.68 1.04 2.00 0.93 0.90 10 2.48 2.49 1.12 1.82 1.03 0.91 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.93(F 9 - 33.35)(1.01) + 32.65 0.93(F 38 - 35.24)(0.91) + 32.65 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 38 9 0.840 0.838 0.832 0.829 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.4 32.2 34.0 34.3 34.6 32.6 36.3 40.9 36.6 35.5 34.3 31.6 36.1 32.2 37.9 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 S- 7 -1.6 -2.1 -1.6 -1.9 -1.0 -2.1 -1.0 -1.2 -2.3 -1.6 -0.7 -0.7 -1.3 -1.5 -0.6 S- 10 -6.4 -8.5 -6.9 -8.2 -5.7 -7.2 -7.2 -7.3 -8.3 -8.2 -7.3 -9.2 -6.8 -7.2 -6.3 S- 38 -3.4 -3.7 -0.8 -4.3 -4.2 -3.3 -4.1 -3.3 -3.4 -4.2 -2.8 -3.4 -2.1 -2.6 -2.0 S- 9 -0.6 -1.7 0.6 -1.5 -0.8 -1.4 -1.8 -1.1 -1.4 -1.5 -0.9 -1.6 0.1 -0.6 0.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 0.44 1.54 1.59 1.13-1.32-1.23 37.46 35.81 1.65 34.97 36.37-1.40 -3.06 10 -5.57-4.31-4.54-5.04-6.96-7.63 41.89-4.43 42.35-7.38 -2.95 38 -1.21-0.15-0.14-0.20-3.15-2.93 37.64-0.18 38.13-3.16 -2.99 9 1.07 2.37 2.10 1.87-0.73-0.86 35.21 2.25 35.92-0.95 -3.20 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.73 2.26 2.24 1.94 1.16 2.38 2.33 1.02 0.88 10 2.45 2.14 1.05 2.25 1.06 1.01 38 3.03 2.71 0.83 2.54 0.94 1.13 9 2.79 2.46 0.91 2.36 1.01 1.10 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.92(F 7 - 36.37)(1.02) + 34.97 0.92(F 10 - 42.35)(1.06) + 34.97 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 10 9 38 0.753 0.746 0.724 0.721 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.6 40.2 43.6 41.8 41.4 41.1 41.3 45.2 43.8 41.7 39.0 42.5 41.3 39.8 43.3 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 S- 7 -1.2 -1.8 -1.6 -1.3 -1.2 -1.5 -0.9 -1.3 -2.1 -1.0 -1.1 -0.6 -1.3 -1.5 -1.2 S- 10 -5.7 -7.4 -6.8 -7.8 -4.9 -6.5 -6.7 -7.1 -7.4 -7.5 -7.2 -7.8 -7.2 -6.6 -6.1 S- 9 -0.3 -1.2 0.0 -2.3 -0.5 -0.9 -0.8 -1.0 -1.4 -1.5 -0.9 -1.1 -0.9 0.0 -0.1 S- 38 -2.9 -3.8 -2.3 -5.2 -4.1 -2.8 -3.5 -3.2 -4.1 -4.5 -3.0 -3.1 -3.8 -1.8 -2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 0.75 1.83 2.00 1.68-1.10-1.24 44.71 42.80 1.91 41.83 43.14-1.31 -3.22 10 -4.79-3.63-3.67-3.92-6.32-7.11 48.40-3.68 48.67-6.84 -3.16 9 1.27 2.71 2.12 2.25-0.51-0.84 42.19 2.52 42.70-0.87 -3.39 38 -1.36 0.08-0.65-0.41-3.13-3.25 44.93-0.22 45.19-3.36 -3.15 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.35 1.89 1.96 1.67 1.18 1.56 1.66 0.94 0.80 10 1.97 1.95 1.01 1.80 0.87 0.87 9 2.04 2.10 0.93 1.69 0.93 0.99 38 2.21 2.29 0.86 1.81 0.86 1.01 Suggested regression eqns from two most closely related CDs ( 7 and 10): 0.87(F 7 - 43.14)(0.94) + 41.83 0.86(F 10 - 48.67)(0.87) + 41.83 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 10 38 13 0.725 0.721 0.719 0.699 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 50.2 47.8 53.0 51.9 51.4 50.3 50.0 52.0 54.3 48.8 49.8 50.9 51.1 48.9 49.4 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 10 55.5 54.3 59.2 57.7 56.0 55.7 55.2 57.9 59.9 55.1 55.6 57.3 57.3 54.9 55.0 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 13 58.1 58.0 61.8 61.2 59.4 59.0 58.6 61.0 62.8 58.0 57.9 60.4 61.5 58.5 59.0 S- 9 0.4 -0.5 -0.7 -0.8 -0.6 -0.7 0.0 -0.2 -0.8 -1.2 0.0 0.4 -0.5 -0.3 0.6 S- 10 -5.3 -6.5 -6.2 -5.8 -4.6 -5.4 -5.3 -6.0 -5.6 -6.4 -5.8 -6.3 -6.2 -6.0 -5.6 S- 38 -1.9 -2.6 -3.5 -3.5 -4.1 -2.9 -3.0 -2.3 -3.7 -4.0 -2.0 -1.8 -3.2 -2.7 -1.8 S- 13 -7.9-10.2 -8.9 -9.2 -8.0 -8.7 -8.6 -9.0 -8.5 -9.2 -8.1 -9.5-10.3 -9.7 -9.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.59 2.78 2.47 2.54-0.12-0.26 53.91 51.18 2.73 50.64 50.97-0.33 -3.06 10 -3.80-3.00-2.52-2.80-5.35-6.00 56.76-2.85 56.44-5.80 -2.95 38 -1.12 0.00-0.40-0.12-2.80-2.76 54.02-0.11 53.51-2.88 -2.77 13 -7.19-6.34-6.22-6.10-8.64-9.27 60.19-6.28 59.67-9.03 -2.75 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.15 1.68 1.62 1.70 0.95 1.65 1.83 0.90 0.95 10 1.52 1.54 1.05 1.62 1.02 0.97 38 1.82 1.74 0.93 2.05 0.80 0.87 13 1.53 1.59 1.02 1.57 1.05 1.04 Suggested regression eqns from two most closely related CDs ( 9 and 10): 0.85(F 9 - 50.97)(0.90) + 50.64 0.85(F 10 - 56.44)(1.02) + 50.64 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 9 13 0.766 0.757 0.752 0.744 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 59.0 59.9 61.2 61.5 61.2 59.8 60.1 60.3 63.8 57.6 60.6 62.0 59.7 60.8 57.7 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 S- 38 -1.3 -2.0 -2.6 -3.2 -3.1 -2.3 -0.7 -1.4 -3.0 -2.9 -1.1 -0.9 -2.8 -1.6 -0.8 S- 11 -1.0 -1.6 -1.9 -2.8 -2.1 -1.6 -0.4 -1.8 -1.3 -2.6 -1.3 -0.7 -2.6 -1.7 -0.9 S- 9 1.0 0.3 0.0 -0.3 0.1 0.5 1.6 0.9 0.0 -0.4 0.6 1.4 0.0 0.5 1.5 S- 13 -6.5 -6.8 -7.8 -8.5 -6.9 -6.8 -6.5 -7.6 -6.2 -7.6 -6.9 -6.3 -8.4 -7.2 -6.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -0.70 0.02 0.04-0.06-1.97-1.86 63.58 63.55 0.03 60.34 62.31-1.98 -2.01 11 -0.39 0.32 0.31 0.34-1.71-1.59 63.26 0.32 61.96-1.63 -1.94 9 2.05 2.97 2.95 2.71 0.65 0.53 60.56 3.02 59.81 0.53 -2.49 13 -5.74-5.26-4.62-5.04-7.18-6.97 68.64-5.06 67.41-7.07 -2.01 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.90 1.68 1.33 1.64 0.81 1.54 1.97 0.78 0.96 11 1.51 1.45 0.92 1.64 0.94 1.02 9 1.51 1.56 0.85 1.75 0.88 1.03 13 1.50 1.36 0.98 1.66 0.93 0.94 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.88(F 38 - 62.31)(0.78) + 60.34 0.87(F 11 - 61.96)(0.94) + 60.34 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 6 8 0.783 0.776 0.766 0.760 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 67.4 67.6 67.3 69.0 70.3 68.6 68.3 68.1 72.4 65.4 69.8 68.8 68.4 67.4 66.4 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7 cd 8 63.7 62.7 63.3 65.5 66.8 65.6 64.3 63.5 68.5 62.7 65.7 64.8 65.5 64.4 63.0 S- 9 1.3 1.4 0.7 0.5 0.6 1.4 1.9 1.7 2.0 0.3 1.6 2.2 1.2 0.9 1.9 S- 38 -1.7 -0.9 -1.9 -2.8 -2.0 -1.4 0.2 -0.6 -0.6 -1.9 -0.5 -0.2 -1.3 -2.0 -0.7 S- 6 0.7 1.9 1.2 0.5 0.4 0.2 2.2 2.6 1.1 0.5 2.3 2.3 1.0 1.3 1.7 S- 8 3.8 4.9 4.0 3.5 3.5 2.9 4.0 4.6 4.0 2.7 4.1 4.0 2.9 3.0 3.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.37 3.05 3.36 2.60 1.12 1.44 70.54 67.31 3.23 68.35 67.04 1.31 -1.91 38 -0.38-0.06 0.68-0.19-1.51-1.02 70.33 0.20 69.57-1.22 -1.42 6 2.27 3.04 3.23 2.27 1.13 1.45 67.47 3.06 67.03 1.32 -1.74 8 4.74 5.54 5.71 4.83 3.80 3.45 64.93 5.60 64.67 3.69 -1.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.69 1.42 1.25 1.45 0.86 1.62 1.53 1.06 1.23 38 1.56 1.61 0.78 1.65 0.98 1.26 6 1.51 1.55 0.81 1.77 0.92 1.13 8 1.35 1.36 0.92 1.57 1.03 1.12 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.89(F 9 - 67.04)(1.06) + 68.35 0.88(F 38 - 69.57)(0.98) + 68.35 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 6 8 9 0.753 0.748 0.747 0.716 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.9 72.1 70.3 71.8 73.7 73.6 72.0 71.8 74.7 69.3 73.8 73.4 73.9 71.5 71.4 cd 7 74.3 73.1 72.0 73.4 74.7 74.9 73.2 73.2 74.7 70.7 74.3 74.0 74.4 72.3 72.1 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 8 69.2 67.7 66.3 67.6 69.8 70.3 68.5 67.9 70.6 66.0 69.6 69.1 71.1 68.8 67.8 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 S- 7 -1.4 -0.9 -1.7 -1.7 -0.9 -1.3 -1.2 -1.3 0.0 -1.4 -0.5 -0.6 -0.6 -0.8 -0.7 S- 6 0.1 1.4 1.4 0.9 1.3 0.7 1.3 2.0 1.7 1.3 1.9 2.4 0.5 1.1 1.9 S- 8 3.7 4.4 4.0 4.2 4.0 3.4 3.5 3.9 4.0 3.3 4.2 4.3 2.8 2.7 3.6 S- 9 1.5 1.7 1.2 0.7 1.0 1.6 1.2 1.5 2.7 0.8 1.6 2.2 1.5 1.8 2.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -0.12 0.86 0.73-0.31-1.40-0.65 73.98 73.07 0.91 72.42 73.42-1.00 -1.91 6 2.16 2.81 3.15 2.07 1.02 1.54 70.99 2.99 71.09 1.33 -1.66 8 4.62 5.41 5.45 4.55 3.80 3.56 68.42 5.56 68.69 3.73 -1.83 9 2.50 3.27 3.58 2.44 1.18 1.83 70.51 3.47 70.87 1.55 -1.92 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.54 1.05 1.00 0.92 1.08 1.43 1.18 1.20 1.11 6 1.34 1.30 0.76 1.57 0.91 1.19 8 1.27 1.27 0.78 1.43 0.99 1.27 9 1.17 1.06 0.94 1.25 1.14 1.22 Suggested regression eqns from two most closely related CDs ( 7 and 6): 0.87(F 7 - 73.42)(1.20) + 72.42 0.87(F 6 - 71.09)(0.91) + 72.42 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 6 8 9 0.801 0.788 0.783 0.778 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.8 69.3 69.7 70.5 71.7 71.5 69.9 70.0 72.7 68.9 73.0 70.3 71.9 69.4 70.0 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 6 71.7 67.7 68.8 70.1 70.5 71.1 68.9 68.6 70.4 67.3 70.0 68.3 70.6 68.3 67.6 cd 8 67.9 65.2 66.5 66.5 67.5 68.4 66.8 66.2 68.1 65.3 68.0 66.2 68.7 66.8 65.9 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 S- 7 -1.6 -1.1 -1.9 -1.2 -1.1 -1.4 -1.4 -1.3 0.0 -1.2 -0.1 -0.9 -1.2 -1.2 -1.0 S- 6 0.1 1.7 0.9 0.5 1.2 0.4 1.0 1.4 2.3 1.6 3.0 2.0 1.3 1.1 2.4 S- 8 3.9 4.2 3.2 4.0 4.1 3.1 3.1 3.8 4.6 3.6 5.0 4.1 3.2 2.7 4.1 S- 9 1.6 1.9 1.2 0.7 0.8 0.8 0.9 0.9 2.5 0.6 1.8 1.9 1.5 1.8 2.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 -0.19 0.87 0.57-0.35-1.44-0.78 72.77 71.85 0.92 70.72 71.81-1.10 -2.02 6 2.28 2.96 3.17 2.35 0.87 1.95 69.66 3.11 69.33 1.39 -1.72 8 4.73 5.60 5.46 4.78 3.64 3.90 67.05 5.73 66.93 3.78 -1.95 9 2.40 3.28 3.42 2.26 1.10 1.76 69.36 3.41 69.30 1.41 -2.00 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.70 1.19 1.35 1.31 1.03 1.23 1.04 1.18 1.15 6 1.46 1.52 0.89 1.34 0.92 1.03 8 1.38 1.68 0.80 1.08 1.14 1.42 9 1.38 1.36 1.00 1.21 1.02 1.02 Suggested regression eqns from two most closely related CDs ( 7 and 6): 0.90(F 7 - 71.81)(1.18) + 70.72 0.89(F 6 - 69.33)(0.92) + 70.72 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 5 7 8 6 0.821 0.813 0.809 0.806 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.7 65.0 63.5 64.0 62.1 62.2 63.4 63.6 64.8 61.1 64.8 62.1 65.4 63.3 63.1 cd 5 60.8 60.4 59.9 59.0 57.5 58.1 59.1 59.6 60.5 56.9 58.5 58.3 61.1 59.8 58.0 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 8 61.1 61.2 60.9 60.1 58.4 58.8 60.2 60.6 61.1 57.7 59.9 58.5 62.5 60.6 59.3 cd 6 64.5 63.6 63.5 63.6 61.2 61.2 62.0 62.5 63.8 60.0 61.9 61.5 64.2 62.5 61.1 S- 5 3.9 4.7 3.6 5.0 4.6 4.1 4.4 4.0 4.3 4.2 6.2 3.7 4.3 3.5 5.0 S- 7 -1.7 -1.2 -2.4 -1.1 -1.6 -1.4 -2.0 -2.0 -0.9 -1.4 -0.2 -1.2 -1.5 -1.3 -1.2 S- 8 3.5 3.8 2.6 3.9 3.7 3.4 3.2 3.0 3.7 3.4 4.9 3.6 2.9 2.7 3.7 S- 6 0.1 1.4 0.1 0.4 0.9 1.0 1.4 1.1 1.0 1.1 2.9 0.6 1.2 0.8 1.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 5 5.47 6.28 6.05 5.96 4.30 4.47 66.45 60.06 6.39 63.53 59.16 4.37 -2.02 7 -0.24 0.96 0.60-0.28-1.63-1.10 65.38 1.07 64.95-1.41 -2.48 8 4.71 5.76 5.48 4.94 3.44 3.57 60.57 5.88 60.06 3.47 -2.41 6 2.22 3.11 3.05 2.55 0.77 1.36 63.27 3.18 62.48 1.06 -2.13 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 5 1.95 1.59 1.41 1.54 0.92 1.22 1.21 1.01 1.10 7 1.41 1.37 1.03 1.22 1.00 0.97 8 1.57 1.59 0.89 1.25 0.97 1.09 6 1.60 1.42 0.99 1.29 0.95 0.95 Suggested regression eqns from two most closely related CDs ( 5 and 7): 0.91(F 5 - 59.16)(1.01) + 63.53 0.90(F 7 - 64.95)(1.00) + 63.53 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 5 8 7 6 0.837 0.824 0.786 0.781 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 53.9 54.3 56.5 54.3 53.0 52.2 54.0 55.3 54.4 53.1 54.4 54.4 53.1 52.5 52.9 cd 5 50.7 50.1 51.8 49.4 48.9 48.3 49.3 51.2 49.9 48.3 48.2 51.0 48.8 48.2 48.3 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 S- 5 3.2 4.3 4.8 4.9 4.2 4.0 4.7 4.0 4.5 4.7 6.2 3.5 4.4 4.3 4.5 S- 8 2.7 3.5 3.3 3.7 3.4 3.6 3.5 2.8 3.8 3.6 4.5 3.3 3.2 3.0 3.4 S- 7 -2.5 -1.8 -2.1 -1.5 -1.7 -1.2 -1.8 -1.9 -1.2 -1.1 -0.7 -1.7 -2.1 -1.5 -1.8 S- 6 -0.2 1.2 0.7 0.3 0.5 1.5 1.9 1.0 1.6 1.3 2.8 0.4 2.1 1.8 1.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 5 5.49 6.17 5.85 6.18 4.40 4.59 56.90 50.65 6.25 53.90 49.48 4.41 -1.84 8 4.65 5.68 5.22 5.02 3.45 3.54 51.17 5.73 50.48 3.42 -2.31 7 -0.30 0.84 0.52-0.10-1.65-1.43 55.94 0.96 55.53-1.63 -2.59 6 2.51 3.56 3.12 2.96 0.98 1.66 53.40 3.50 52.66 1.23 -2.27 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 5 1.89 1.65 1.12 1.17 0.96 1.09 1.17 0.93 0.97 8 1.60 1.18 0.95 1.16 0.93 0.99 7 1.45 1.11 1.01 1.28 0.85 0.84 6 1.73 1.18 0.95 1.48 0.73 0.77 Suggested regression eqns from two most closely related CDs ( 5 and 8): 0.92(F 5 - 49.48)(0.93) + 53.90 0.91(F 8 - 50.48)(0.93) + 53.90 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 5 8 23 6 0.856 0.845 0.829 0.823 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 41.8 47.2 45.2 43.6 43.5 42.5 39.4 46.4 44.9 42.6 42.9 45.8 42.1 43.0 43.4 cd 5 37.5 42.1 38.9 39.3 39.3 37.6 34.4 42.2 40.1 38.3 37.8 42.1 37.0 39.0 38.9 cd 8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2 cd 23 37.3 42.8 38.6 39.8 40.2 38.0 35.3 41.9 40.6 39.9 39.0 43.6 37.3 38.5 39.4 cd 6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7 S- 5 4.3 5.0 6.3 4.3 4.1 4.8 5.0 4.3 4.9 4.3 5.1 3.7 5.0 4.0 4.5 S- 8 2.9 3.6 4.4 3.2 3.2 3.8 3.6 2.6 3.5 3.2 3.6 3.1 3.7 2.6 3.1 S- 23 4.5 4.4 6.6 3.7 3.2 4.5 4.1 4.5 4.3 2.7 3.9 2.2 4.8 4.5 3.9 S- 6 1.4 1.9 2.8 1.1 1.0 2.6 2.2 1.4 2.0 0.8 1.4 0.5 2.9 1.4 1.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 5 5.82 6.57 6.13 6.79 4.72 4.51 46.09 39.50 6.59 43.61 38.96 4.65 -1.94 8 4.72 5.90 5.18 5.37 3.46 3.28 40.25 5.84 40.25 3.36 -2.48 23 5.19 6.05 5.41 6.08 4.23 3.77 40.16 5.93 39.48 4.13 -1.80 6 3.01 4.19 3.51 3.75 1.65 1.53 41.97 4.13 41.94 1.67 -2.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 5 2.18 2.14 1.43 1.58 0.91 1.94 2.03 0.95 1.05 8 2.13 1.66 0.86 2.02 0.96 1.11 23 2.20 1.61 0.89 2.12 0.92 1.03 6 2.22 1.61 0.89 2.18 0.89 0.99 Suggested regression eqns from two most closely related CDs ( 5 and 8): 0.93(F 5 - 38.96)(0.95) + 43.61 0.92(F 8 - 40.25)(0.96) + 43.61 Station#1883 WINCHESTER/7 SE , va 4918603 lat/lon 78.17 39.18 17M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 7 10 0.857 0.854 0.850 0.850 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 32.1 36.2 37.2 34.7 35.5 37.7 34.0 38.2 37.2 37.4 33.0 40.1 32.9 35.6 36.0 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 10 40.1 42.6 44.2 42.5 42.0 43.4 41.7 46.0 44.6 44.3 41.2 46.4 39.2 41.8 43.5 S- 9 -1.1 0.4 0.5 -1.2 -1.0 -0.4 -0.4 -1.4 0.0 -0.6 -0.6 0.2 0.3 0.5 -1.4 S- 13-11.1 -8.9 -9.4-10.7 -8.9 -8.7-10.9 -9.8 -9.3 -8.7-10.2 -7.7 -8.9 -9.0 -8.9 S- 7 -2.9 -1.6 -1.1 -2.2 -1.5 -1.2 -1.9 -2.2 -1.9 -1.6 -1.9 -1.8 -0.9 -1.4 -4.0 S- 10 -8.0 -6.4 -7.1 -7.8 -6.5 -5.8 -7.8 -7.8 -7.4 -6.8 -8.1 -6.3 -6.3 -6.2 -7.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 1.26 2.61 2.04 1.82-0.41-0.22 37.98 35.43 2.55 35.84 36.24-0.41 -2.95 13 -8.07-7.13-7.44-7.62-9.50-8.94 45.11-7.14 45.23-9.39 -2.25 7 -0.26 1.05 0.62 0.21-1.76-1.94 36.91 1.07 37.72-1.88 -2.95 10 -5.45-4.08-4.68-5.11-6.89-6.95 42.12-4.14 42.90-7.06 -2.91 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.59 2.64 1.92 2.20 0.88 2.13 2.10 1.01 1.16 13 2.24 1.95 0.99 1.65 1.29 1.31 7 2.43 1.96 0.98 2.15 0.99 1.01 10 2.36 1.90 1.01 1.95 1.09 1.08 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.93(F 9 - 36.24)(1.01) + 35.84 0.92(F 13 - 45.23)(1.29) + 35.84 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.98 39.70 45.49 53.61 62.42 69.49 72.81 71.89 66.55 56.18 46.00 39.46 1952 38.98 40.83 45.88 53.54 64.33 71.96 75.67 72.76 64.69 55.77 46.01 41.42 1953 39.59 42.62 46.85 55.67 64.68 72.76 75.05 73.29 67.07 57.26 47.85 39.69 1954 38.43 40.21 48.50 54.59 64.09 69.77 74.25 73.76 68.16 58.17 46.96 38.32 1955 36.45 39.94 48.17 57.20 63.76 71.01 74.58 74.57 67.14 56.42 45.36 37.75 1956 36.82 40.12 46.15 53.27 62.42 69.66 73.16 70.99 65.15 55.92 49.31 41.04 1957 39.22 38.93 47.14 55.14 64.55 70.10 72.57 71.34 64.49 56.25 46.87 39.72 1958 33.86 33.36 40.85 51.60 61.19 67.87 70.93 70.43 63.59 55.76 43.92 36.25 1959 32.73 36.68 44.59 53.58 62.85 68.99 72.64 71.85 66.15 55.08 45.06 37.72 1960 34.47 32.06 38.92 47.56 60.04 64.84 69.50 68.34 63.11 55.02 43.75 35.19 1961 31.69 37.48 44.63 51.76 59.35 67.52 72.29 72.79 67.14 58.55 46.94 38.90 1962 34.77 36.32 42.92 52.99 62.83 68.88 70.92 68.86 64.42 54.61 43.65 34.53 1963 30.10 35.68 43.98 54.93 62.69 68.45 72.06 70.12 65.54 57.26 45.41 36.75 1964 31.70 37.03 43.76 54.40 63.96 71.38 74.23 72.09 64.17 55.65 46.34 39.51 1965 35.60 36.61 44.04 54.46 63.54 70.12 72.03 72.40 65.85 57.10 47.36 39.27 1966 34.86 36.81 43.32 52.80 60.99 69.94 73.74 71.58 63.93 54.91 45.16 40.33 1967 35.69 39.02 44.86 52.84 61.68 67.10 71.83 69.13 62.86 52.92 44.53 35.47 1968 32.34 36.04 45.62 54.79 62.42 68.63 73.78 72.38 66.57 57.35 46.28 37.56 1969 33.35 35.90 44.38 54.24 64.90 71.54 73.91 71.71 64.58 54.97 43.84 34.60 1970 31.97 34.40 43.71 53.94 64.37 70.81 73.26 73.26 67.70 58.53 47.21 37.50 1971 34.31 35.91 43.99 52.05 62.28 68.93 72.46 71.37 67.21 58.66 49.97 42.10 1972 38.33 38.63 43.95 53.02 60.81 67.78 71.31 71.63 64.58 54.89 46.18 40.36 1973 37.75 40.55 46.47 54.82 62.37 69.51 74.22 73.08 67.52 58.57 47.83 42.28 1974 38.55 41.91 46.62 55.33 62.29 68.31 71.84 71.12 64.42 55.52 46.49 40.71 1975 37.85 39.22 43.49 52.76 62.45 70.41 73.62 71.31 66.55 58.12 49.00 39.67 1976 37.78 41.87 50.23 55.89 63.62 69.16 72.34 70.27 62.84 52.56 41.69 31.96 1977 30.64 36.64 48.79 58.46 64.93 72.05 75.53 75.59 66.95 57.05 45.27 35.98 1978 28.72 30.89 40.42 52.28 62.64 69.24 73.94 73.06 66.61 57.16 46.94 38.86 1979 31.84 34.58 42.30 54.49 61.90 68.49 72.00 71.34 65.23 57.32 48.00 40.38 1980 34.47 35.53 42.88 53.80 62.70 70.03 73.83 74.36 67.17 56.45 45.12 36.16 1981 34.12 36.10 46.07 53.83 64.16 69.57 72.72 70.69 63.67 55.32 44.28 35.35 1982 32.26 36.23 44.67 54.53 62.76 70.44 71.90 70.85 64.77 57.30 49.21 41.40 1983 37.07 38.14 43.95 52.38 60.51 68.48 73.69 72.64 66.67 56.68 45.15 35.63 1984 33.73 36.26 43.97 51.03 62.24 69.41 73.61 70.96 67.30 57.14 50.46 39.68 1985 37.34 37.81 47.00 56.06 63.79 69.59 72.47 71.91 66.13 58.58 46.88 38.22 1986 32.56 36.25 43.76 53.56 62.72 69.78 71.89 70.50 63.98 55.02 45.28 37.16 1987 34.86 37.71 44.72 54.36 63.76 72.22 75.88 74.13 65.22 55.40 45.83 38.29 1988 34.81 36.65 44.84 53.89 62.30 70.09 74.71 73.06 63.86 53.83 44.08 40.24 1989 36.92 39.69 44.33 52.14 61.63 69.17 73.03 71.07 64.87 55.60 41.36 35.98 1990 35.35 43.55 48.07 54.04 61.81 68.96 72.63 71.32 65.68 58.05 49.48 41.45 1991 38.78 40.90 48.28 57.50 65.62 72.39 74.52 72.98 66.22 55.63 46.84 40.52 1992 39.61 41.25 46.96 53.72 61.72 68.79 71.75 70.85 63.52 55.39 45.33 40.01 1993 36.44 37.94 43.01 52.50 62.58 70.17 73.61 71.86 64.64 55.28 45.11 35.29 1994 31.18 33.47 43.93 51.81 62.25 68.46 72.97 70.19 62.46 55.29 46.73 40.94 1995 34.66 37.10 42.50 52.43 60.90 69.27 74.29 72.03 65.52 53.56 42.69 33.61 1996 31.28 33.04 40.78 49.86 61.56 67.97 71.89 69.77 63.55 52.78 43.35 36.23 1997 36.00 38.54 43.90 49.80 57.71 66.30 71.34 70.49 63.97 53.94 44.51 37.14 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 7 38 10 0.928 0.921 0.918 0.911 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.1 33.7 37.3 32.6 34.9 34.8 36.9 35.3 38.8 39.6 36.4 31.2 34.7 31.3 36.0 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 7 36.2 32.8 34.8 32.3 33.2 32.8 35.0 34.6 37.4 36.4 34.4 30.4 35.8 31.4 36.7 cd 38 38.1 32.5 33.6 33.5 35.0 33.9 36.6 35.8 37.7 38.2 35.5 32.1 36.2 32.5 37.3 cd 10 40.7 38.5 40.3 39.0 38.3 38.1 40.7 40.9 43.5 42.7 40.3 37.5 41.5 37.2 41.8 S- 9 1.9 2.4 4.5 1.1 2.5 2.7 2.4 1.6 2.5 3.9 2.5 0.9 0.5 0.7 0.6 S- 7 0.9 1.0 2.5 0.2 1.7 2.0 1.9 0.8 1.4 3.2 2.1 0.8 -1.1 -0.1 -0.7 S- 38 -1.0 1.3 3.7 -0.9 -0.2 0.9 0.3 -0.5 1.1 1.4 0.9 -0.9 -1.5 -1.2 -1.3 S- 10 -3.6 -4.8 -3.0 -6.4 -3.5 -3.3 -3.8 -5.6 -4.7 -3.1 -3.9 -6.4 -6.8 -5.9 -5.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.65 2.98 2.82 2.97 2.51 1.64 35.43 32.62 2.81 35.37 33.35 2.02 -0.78 7 1.65 2.00 1.84 1.89 1.47 0.79 33.45 1.97 34.28 1.10 -0.88 38 0.64 0.68 0.77 1.21 0.52-0.22 34.82 0.61 35.24 0.14 -0.47 10 -4.24-3.62-4.23-4.28-4.14-5.23 39.40-3.97 40.07-4.70 -0.73 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.77 2.89 2.90 2.99 0.97 2.40 1.85 1.30 1.34 7 2.52 2.68 1.08 2.00 1.20 1.11 38 3.07 3.13 0.93 2.04 1.17 1.27 10 2.48 2.49 1.16 1.82 1.32 1.13 Suggested regression eqns from two most closely related CDs ( 9 and 7): 0.96(F 9 - 33.35)(1.30) + 35.37 0.96(F 7 - 34.28)(1.20) + 35.37 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 10 7 0.919 0.916 0.908 0.904 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 38.1 36.3 37.8 36.3 37.7 36.7 39.7 43.5 40.9 41.3 37.9 33.5 37.1 33.0 38.5 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 cd 10 41.8 40.7 40.9 42.5 40.3 39.8 43.5 48.2 45.0 43.7 41.6 40.8 42.9 39.4 44.2 cd 7 37.1 34.2 35.6 36.3 35.6 34.7 37.4 42.1 38.9 37.0 35.0 32.2 37.5 33.7 38.4 S- 9 2.1 2.4 4.4 0.4 2.4 2.7 1.5 1.5 2.9 4.2 2.7 0.3 1.1 0.2 0.7 S- 38 -0.7 0.4 3.0 -2.4 -1.1 0.8 -0.7 -0.7 0.9 1.6 0.8 -1.5 -1.2 -1.7 -1.3 S- 10 -3.7 -4.4 -3.1 -6.3 -2.5 -3.2 -3.8 -4.7 -4.1 -2.4 -3.6 -7.3 -5.8 -6.4 -5.7 S- 7 1.1 2.0 2.2 0.0 2.1 2.0 2.3 1.5 2.0 4.2 3.0 1.2 -0.4 -0.6 0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.61 2.81 2.80 3.07 2.38 1.73 37.84 35.21 2.63 37.89 35.92 1.97 -0.66 38 0.33 0.28 0.56 1.00-0.04-0.34 37.64 0.20 38.13-0.25 -0.45 10 -4.03-3.88-3.84-3.84-3.85-5.04 41.89-4.05 42.35-4.46 -0.41 7 1.99 1.98 2.29 2.32 1.79 1.35 35.81 2.03 36.37 1.51 -0.52 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.76 2.79 2.78 2.46 1.13 2.67 2.36 1.13 1.00 38 3.03 2.71 1.03 2.54 1.05 1.02 10 2.45 2.14 1.30 2.25 1.19 0.91 7 2.26 1.94 1.43 2.33 1.14 0.80 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.96(F 9 - 35.92)(1.13) + 37.89 0.96(F 38 - 38.13)(1.05) + 37.89 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 10 7 0.877 0.862 0.852 0.843 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.0 44.0 47.0 43.8 44.7 44.8 44.3 48.1 48.3 47.0 43.0 43.9 42.5 40.8 43.9 cd 9 41.9 41.5 43.7 44.1 41.9 41.9 42.2 46.2 45.2 43.2 39.9 43.5 42.2 39.8 43.4 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 cd 10 47.3 47.6 50.4 49.5 46.3 47.5 48.0 52.3 51.3 49.1 46.2 50.2 48.6 46.4 49.4 cd 7 42.8 42.0 45.2 43.1 42.6 42.6 42.2 46.5 45.9 42.6 40.1 43.0 42.6 41.3 44.5 S- 9 2.1 2.5 3.3 -0.4 2.8 2.9 2.2 1.9 3.1 3.8 3.1 0.4 0.3 0.9 0.5 S- 38 -0.5 0.0 1.1 -3.2 -0.8 1.0 -0.5 -0.2 0.3 0.8 1.0 -1.6 -2.6 -0.8 -1.9 S- 10 -3.4 -3.6 -3.4 -5.8 -1.6 -2.7 -3.7 -4.2 -3.0 -2.2 -3.2 -6.3 -6.1 -5.6 -5.5 S- 7 1.1 2.0 1.8 0.6 2.1 2.2 2.1 1.6 2.3 4.3 2.9 0.9 -0.1 -0.5 -0.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.61 2.72 2.73 3.16 2.42 1.73 44.79 42.19 2.60 44.67 42.70 1.97 -0.63 38 -0.03 0.09-0.04 0.50-0.20-0.68 44.93-0.14 45.19-0.53 -0.39 10 -3.46-3.61-3.06-3.01-3.39-4.53 48.40-3.60 48.67-4.01 -0.40 7 2.08 1.84 2.61 2.59 1.83 1.34 42.80 1.99 43.14 1.53 -0.46 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.28 2.04 2.51 2.10 1.19 2.02 1.69 1.19 1.00 38 2.21 2.29 1.09 1.81 1.11 1.02 10 1.97 1.95 1.28 1.80 1.12 0.87 7 1.89 1.67 1.50 1.66 1.21 0.81 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.94(F 9 - 42.70)(1.19) + 44.67 0.93(F 38 - 45.19)(1.11) + 44.67 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 6 24 0.890 0.867 0.849 0.828 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 52.4 51.0 56.1 53.6 54.4 53.9 52.1 54.0 57.5 53.7 52.5 51.8 52.4 49.9 49.8 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 6 48.4 45.2 52.8 51.9 51.9 49.4 48.0 50.2 54.5 48.8 48.3 48.4 49.2 46.7 47.3 cd 24 48.6 46.3 54.7 53.7 54.5 51.7 49.6 51.0 55.6 50.6 49.3 50.5 50.7 47.5 48.5 S- 9 2.6 2.8 2.4 0.9 2.4 2.9 2.1 1.9 2.4 3.7 2.7 1.3 0.8 0.7 1.0 S- 38 0.3 0.6 -0.4 -1.8 -1.1 0.7 -0.8 -0.2 -0.5 0.9 0.7 -0.9 -1.9 -1.7 -1.4 S- 6 4.0 5.9 3.3 1.6 2.4 4.5 4.2 3.8 3.0 4.9 4.2 3.4 3.2 3.2 2.5 S- 24 3.8 4.7 1.3 -0.1 -0.1 2.2 2.6 3.0 1.9 3.1 3.2 1.4 1.8 2.4 1.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.53 2.44 2.64 3.12 2.44 1.80 53.62 51.18 2.44 53.01 50.97 2.04 -0.40 38 -0.18-0.34-0.23 0.46-0.24-0.70 54.02-0.40 53.51-0.51 -0.10 6 4.25 4.19 4.51 4.92 3.89 3.49 49.44 4.18 49.40 3.61 -0.57 24 2.86 3.21 3.00 3.34 2.39 2.13 50.60 3.02 50.85 2.15 -0.86 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.95 1.68 2.13 1.70 1.25 2.02 1.83 1.10 0.88 38 1.82 1.74 1.22 2.05 0.98 0.80 6 1.97 1.60 1.33 2.40 0.84 0.63 24 2.18 1.79 1.19 2.65 0.76 0.64 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.94(F 9 - 50.97)(1.10) + 53.01 0.93(F 38 - 53.51)(0.98) + 53.01 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 39 6 0.844 0.837 0.805 0.796 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 60.5 62.2 63.8 62.7 63.8 62.3 61.6 61.8 65.6 61.7 62.6 62.3 60.9 61.6 57.7 cd 9 58.0 59.5 61.2 61.8 61.1 59.3 58.5 59.4 63.7 58.0 60.0 60.6 59.8 60.3 56.2 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 39 61.5 64.3 65.9 67.0 66.9 64.9 63.1 63.1 68.5 62.9 63.7 65.0 64.8 64.4 60.7 cd 6 57.4 58.6 60.6 61.4 61.6 59.5 57.4 58.3 64.4 57.5 59.0 59.5 58.8 58.9 56.2 S- 9 2.5 2.7 2.6 1.0 2.7 3.0 3.2 2.5 1.9 3.8 2.6 1.6 1.1 1.3 1.6 S- 38 0.3 0.4 -0.1 -1.9 -0.6 0.2 0.8 0.2 -1.1 1.2 0.9 -0.6 -1.6 -0.9 -0.7 S- 39 -1.0 -2.0 -2.1 -4.3 -3.2 -2.6 -1.5 -1.3 -2.9 -1.2 -1.1 -2.7 -3.9 -2.9 -3.0 S- 6 3.1 3.6 3.2 1.3 2.2 2.8 4.3 3.5 1.2 4.2 3.6 2.7 2.1 2.7 1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.58 2.16 2.67 3.23 2.66 1.98 62.85 60.56 2.28 62.07 59.81 2.27 -0.02 38 -0.17-0.78-0.24 0.45 0.04-0.41 63.55-0.70 62.31-0.24 0.46 39 -2.20-2.34-2.35-1.81-2.06-2.53 65.33-2.49 64.46-2.38 0.10 6 3.17 2.85 3.30 3.74 3.23 2.58 59.97 2.88 59.26 2.81 -0.07 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.52 1.51 1.54 1.56 0.99 1.69 1.75 0.96 0.97 38 1.68 1.64 0.94 1.97 0.85 0.91 39 1.70 1.66 0.93 2.01 0.84 0.91 6 1.64 1.65 0.94 2.00 0.84 0.90 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.92(F 9 - 59.81)(0.96) + 62.07 0.92(F 38 - 62.31)(0.85) + 62.07 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 39 24 6 0.817 0.800 0.798 0.791 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 68.5 69.4 69.6 69.8 72.2 70.1 69.2 69.0 72.4 68.8 70.2 68.5 69.3 68.0 66.3 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5 cd 24 69.4 68.3 68.6 70.9 72.5 71.3 67.8 67.5 72.9 66.8 69.5 68.6 69.2 67.8 66.8 cd 6 66.8 65.7 66.1 68.4 69.8 68.3 66.1 65.5 71.3 64.9 67.5 66.6 67.4 66.2 64.7 S- 9 2.3 3.3 3.0 1.3 2.6 2.9 2.8 2.6 2.0 3.7 1.9 1.8 2.1 1.4 1.8 S- 39 -2.9 -1.6 -2.1 -4.3 -2.4 -2.3 -0.9 -1.5 -2.5 -1.1 -2.6 -2.7 -2.5 -3.8 -3.2 S- 24 -0.9 1.1 1.0 -1.1 -0.3 -1.2 1.4 1.4 -0.6 2.0 0.7 -0.1 0.1 0.2 -0.5 S- 6 1.7 3.7 3.5 1.3 2.4 1.8 3.0 3.4 1.1 3.9 2.6 1.9 1.9 1.8 1.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.57 2.06 2.69 3.20 2.66 2.10 69.52 67.31 2.21 69.40 67.04 2.36 0.15 39 -2.32-2.76-2.11-2.03-2.16-2.62 72.21-2.69 71.83-2.42 0.27 24 0.31 0.02 0.42 0.44 0.39 0.26 69.60-0.08 69.19 0.21 0.29 6 2.47 2.05 2.56 2.87 2.67 2.10 67.47 2.05 67.03 2.37 0.33 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.55 1.42 1.89 1.45 1.30 1.46 1.53 0.96 0.74 39 1.51 1.60 1.18 1.61 0.91 0.78 24 1.58 1.62 1.17 1.87 0.78 0.67 6 1.51 1.55 1.22 1.77 0.83 0.68 Suggested regression eqns from two most closely related CDs ( 9 and 39): 0.90(F 9 - 67.04)(0.96) + 69.40 0.89(F 39 - 71.83)(0.91) + 69.40 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 39 6 24 0.734 0.728 0.727 0.718 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 73.7 73.6 72.5 71.9 75.9 74.7 73.0 72.6 74.5 71.8 73.6 73.0 74.3 71.9 71.3 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 39 77.7 75.6 74.3 76.1 77.0 77.0 74.5 74.7 76.8 72.8 76.9 75.2 77.0 74.5 74.0 cd 6 72.8 70.8 68.9 70.8 72.4 72.9 70.7 69.8 72.9 68.0 71.9 71.0 73.4 70.5 69.5 cd 24 76.0 73.5 70.6 72.8 74.4 75.7 72.3 71.8 74.8 69.3 73.2 72.1 75.5 71.9 71.3 S- 9 2.3 3.1 3.3 0.9 3.2 2.6 2.2 2.3 2.6 3.2 1.5 1.7 1.9 2.1 2.2 S- 39 -4.0 -1.9 -1.9 -4.2 -1.1 -2.3 -1.5 -2.0 -2.3 -1.0 -3.3 -2.2 -2.8 -2.6 -2.7 S- 6 0.9 2.8 3.6 1.1 3.4 1.8 2.3 2.8 1.6 3.8 1.7 2.0 0.9 1.4 1.9 S- 24 -2.3 0.1 1.8 -0.9 1.4 -1.0 0.7 0.8 -0.2 2.4 0.4 0.9 -1.2 -0.1 0.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.60 2.10 2.87 3.18 2.56 2.17 72.85 70.51 2.34 73.22 70.87 2.35 0.01 39 -2.33-3.07-1.79-2.05-2.37-2.41 75.64-2.79 75.60-2.38 0.41 6 2.26 1.63 2.44 2.81 2.40 1.89 70.99 1.86 71.09 2.13 0.27 24 0.21-0.50 0.53 0.50 0.24 0.32 73.12-0.27 73.02 0.20 0.47 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.34 1.17 1.64 1.06 1.54 1.24 1.25 0.99 0.64 39 1.46 1.50 1.09 1.40 0.88 0.81 6 1.34 1.30 1.25 1.57 0.79 0.63 24 1.56 1.55 1.06 1.91 0.65 0.61 Suggested regression eqns from two most closely related CDs ( 9 and 39): 0.86(F 9 - 70.87)(0.99) + 73.22 0.85(F 39 - 75.60)(0.88) + 73.22 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 39 0.772 0.764 0.759 0.736 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 72.6 71.0 71.9 70.5 74.1 73.1 71.1 71.3 73.0 70.8 71.9 70.2 72.0 69.8 70.5 cd 10 75.4 72.6 73.5 74.8 76.3 74.6 74.0 74.3 75.4 73.9 76.3 73.6 75.1 73.1 73.5 cd 7 73.3 70.4 71.6 71.7 72.8 72.9 71.4 71.3 72.6 70.1 73.0 71.2 73.1 70.7 71.0 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 S- 10 -2.8 -1.6 -1.6 -4.3 -2.1 -1.6 -2.9 -3.0 -2.4 -3.0 -4.5 -3.4 -3.1 -3.4 -3.0 S- 7 -0.7 0.6 0.3 -1.2 1.3 0.1 -0.3 0.1 0.3 0.8 -1.2 -1.0 -1.1 -0.9 -0.5 S- 9 2.5 3.5 3.4 0.7 3.3 2.3 2.0 2.2 2.8 2.5 0.7 1.8 1.7 2.1 2.7 S- 39 -4.3 -1.5 -1.1 -4.6 -1.0 -2.1 -1.8 -2.2 -1.9 -1.0 -3.0 -1.9 -3.0 -2.5 -2.5 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.51-2.90-2.11-2.13-2.39-3.26 71.70 74.33-2.64 71.58 74.43-2.85 -0.21 7 -0.02-0.30 0.00 0.49 0.05-0.51 71.85-0.15 71.81-0.23 -0.07 9 2.57 2.11 2.85 3.10 2.59 2.04 69.36 2.34 69.30 2.28 -0.06 39 -2.09-2.82-1.61-1.57-2.25-2.26 74.18-2.48 73.87-2.29 0.19 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.48 1.24 1.68 1.12 1.50 1.18 1.08 1.09 0.73 7 1.19 1.31 1.27 1.04 1.13 0.89 9 1.38 1.36 1.24 1.21 0.98 0.79 39 1.60 1.40 1.20 1.45 0.82 0.68 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.88(F 10 - 74.43)(1.09) + 71.58 0.87(F 7 - 71.81)(1.13) + 71.58 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 10 7 9 13 0.832 0.817 0.799 0.784 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.7 67.3 66.1 64.0 65.2 63.9 64.9 65.7 66.2 63.5 64.6 62.5 65.5 63.5 64.0 cd 10 69.0 69.3 68.8 68.6 67.3 66.2 68.1 68.6 68.4 66.2 68.6 66.3 69.1 67.3 67.1 cd 7 66.4 66.3 65.9 65.1 63.7 63.6 65.4 65.6 65.7 62.5 64.9 63.3 66.8 64.6 64.3 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 13 70.7 71.1 70.3 70.5 68.9 68.2 69.3 71.1 69.7 67.9 70.5 67.8 70.6 68.7 69.0 S- 10 -2.3 -2.0 -2.7 -4.6 -2.0 -2.3 -3.2 -2.9 -2.2 -2.6 -4.0 -3.9 -3.6 -3.8 -3.1 S- 7 0.3 1.0 0.2 -1.1 1.5 0.3 -0.5 0.1 0.5 1.0 -0.3 -0.8 -1.3 -1.1 -0.3 S- 9 3.0 3.0 2.4 0.7 3.3 2.5 2.3 2.5 2.8 2.5 1.4 1.2 1.4 1.5 2.8 S- 13 -4.0 -3.8 -4.2 -6.5 -3.7 -4.3 -4.4 -5.4 -3.4 -4.4 -5.9 -5.4 -5.1 -5.1 -5.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 10 -2.66-3.02-2.27-2.37-2.55-3.31 65.55 68.22-2.67 64.91 67.92-3.01 -0.34 7 0.23-0.08 0.32 0.74 0.34-0.34 65.38 0.17 64.95-0.04 -0.21 9 2.57 2.17 2.85 3.12 2.58 1.92 63.15 2.40 62.70 2.21 -0.19 13 -4.44-5.08-3.99-3.92-4.42-4.91 70.25-4.70 69.62-4.72 -0.02 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 10 1.49 1.42 1.43 1.31 1.09 1.31 1.07 1.23 1.13 7 1.41 1.37 1.04 1.22 1.07 1.03 9 1.50 1.33 1.07 1.10 1.20 1.11 13 1.44 1.41 1.02 1.10 1.19 1.17 Suggested regression eqns from two most closely related CDs ( 10 and 7): 0.91(F 10 - 67.92)(1.23) + 64.91 0.90(F 7 - 64.95)(1.07) + 64.91 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 8 6 0.852 0.846 0.835 0.825 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 56.7 57.1 58.6 55.0 55.4 53.8 55.6 58.0 55.6 55.4 55.3 55.3 53.6 52.8 53.9 cd 7 56.5 56.1 58.6 55.8 54.7 53.4 55.9 57.2 55.6 54.1 55.2 56.1 55.2 54.0 54.6 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 8 51.2 50.8 53.3 50.6 49.7 48.6 50.5 52.4 50.6 49.4 49.9 51.1 49.9 49.5 49.5 cd 6 54.2 53.1 55.8 54.0 52.5 50.7 52.1 54.3 52.8 51.8 51.6 54.0 51.0 50.7 51.3 S- 7 0.2 1.0 0.0 -0.7 0.7 0.4 -0.3 0.8 0.0 1.2 0.1 -0.8 -1.6 -1.2 -0.7 S- 9 3.0 3.2 1.1 0.2 2.7 2.8 2.2 2.9 2.2 2.4 1.6 1.1 1.6 1.7 2.5 S- 8 5.5 6.3 5.3 4.4 5.7 5.2 5.1 5.6 5.0 6.0 5.4 4.2 3.6 3.3 4.4 S- 6 2.5 4.0 2.8 1.0 2.9 3.1 3.5 3.8 2.8 3.6 3.7 1.3 2.6 2.0 2.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 0.42 0.22 0.57 1.00 0.45-0.42 56.33 55.94 0.39 55.48 55.53-0.05 -0.44 9 2.61 2.56 2.81 3.14 2.47 1.85 53.73 2.60 53.41 2.06 -0.54 8 5.36 5.07 5.27 6.13 5.56 4.55 51.17 5.16 50.48 5.00 -0.16 6 3.22 2.95 3.16 4.07 3.08 2.66 53.40 2.93 52.66 2.81 -0.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 1.59 1.45 1.10 1.11 0.99 1.57 1.28 1.23 1.24 9 1.66 0.90 1.22 1.63 0.96 0.79 8 1.60 1.18 0.93 1.16 1.35 1.45 6 1.73 1.18 0.93 1.48 1.06 1.13 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.92(F 7 - 55.53)(1.23) + 55.48 0.92(F 9 - 53.41)(0.96) + 55.48 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 7 9 6 8 0.916 0.908 0.902 0.900 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 45.2 50.5 46.9 45.3 45.8 44.1 41.4 49.5 46.8 45.3 45.1 46.7 42.7 43.3 44.5 cd 7 44.7 49.0 46.8 45.9 45.0 43.5 41.5 49.0 46.5 44.4 44.7 47.8 43.5 44.7 45.2 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 cd 6 40.4 45.2 42.3 42.5 42.5 39.9 37.1 45.0 42.9 41.9 41.5 45.3 39.1 41.6 41.7 cd 8 38.9 43.5 40.8 40.4 40.3 38.7 35.7 43.8 41.5 39.4 39.3 42.7 38.3 40.3 40.2 S- 7 0.4 1.5 0.1 -0.6 0.8 0.6 -0.1 0.5 0.4 0.9 0.5 -1.0 -0.8 -1.3 -0.7 S- 9 3.0 2.8 1.0 0.8 2.3 2.9 2.0 2.8 2.4 2.5 2.2 0.4 1.6 0.7 2.2 S- 6 4.7 5.2 4.5 2.8 3.3 4.2 4.2 4.5 3.9 3.5 3.6 1.4 3.6 1.8 2.8 S- 8 6.3 6.9 6.1 4.9 5.6 5.4 5.6 5.6 5.4 5.9 5.8 4.1 4.4 3.0 4.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 7 0.69 0.77 0.95 1.20 0.50-0.29 46.05 45.16 0.89 45.54 45.46 0.08 -0.81 9 2.60 2.86 2.76 3.07 2.33 1.73 43.22 2.84 43.56 1.98 -0.86 6 4.08 4.13 3.99 4.96 4.02 2.94 41.97 4.08 41.94 3.60 -0.48 8 5.79 5.84 5.66 6.58 5.82 4.69 40.25 5.80 40.25 5.29 -0.51 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 7 2.03 1.92 1.54 1.48 1.04 2.29 1.99 1.15 1.11 9 2.15 1.54 1.00 2.26 1.02 1.02 6 2.22 1.61 0.96 2.18 1.05 1.10 8 2.13 1.66 0.93 2.02 1.13 1.23 Suggested regression eqns from two most closely related CDs ( 7 and 9): 0.96(F 7 - 45.46)(1.15) + 45.54 0.95(F 9 - 43.56)(1.02) + 45.54 Station#1884 WOODSTOCK/2 NE , va 4926303 lat/lon 78.50 38.87 9M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 7 8 0.923 0.915 0.911 0.904 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 35.6 39.7 38.2 37.2 38.3 40.2 36.0 41.5 40.5 40.0 35.3 40.9 33.6 36.2 37.1 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 cd 38 34.4 37.2 38.0 37.6 38.6 40.6 36.4 41.0 39.1 39.4 34.9 41.5 34.2 37.0 39.4 cd 7 35.0 37.7 38.3 36.9 37.0 38.8 35.8 40.3 39.1 39.0 35.0 41.9 33.8 37.0 40.0 cd 8 29.0 32.1 32.1 31.5 32.4 34.1 30.3 35.2 33.7 34.1 29.2 36.2 28.5 32.0 35.1 S- 9 2.4 3.9 1.5 1.3 1.9 2.2 1.6 1.9 3.4 2.0 1.6 1.1 1.0 1.1 -0.2 S- 38 1.2 2.5 0.2 -0.5 -0.3 -0.4 -0.5 0.4 1.4 0.6 0.4 -0.6 -0.6 -0.8 -2.3 S- 7 0.6 1.9 -0.1 0.2 1.3 1.4 0.2 1.1 1.4 1.0 0.3 -0.9 -0.2 -0.8 -2.8 S- 8 6.7 7.6 6.1 5.7 5.9 6.2 5.7 6.3 6.8 5.9 6.1 4.7 5.1 4.2 2.1 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.56 3.01 2.77 3.05 2.21 1.43 38.37 35.43 2.94 38.03 36.24 1.78 -1.16 38 0.69 0.87 0.90 1.40 0.27-0.27 37.37 0.99 37.97 0.05 -0.94 7 1.04 1.45 1.36 1.44 0.86-0.30 36.91 1.46 37.72 0.31 -1.15 8 6.40 6.70 6.43 7.22 6.24 4.98 31.71 6.66 32.36 5.66 -1.00 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.44 2.64 1.94 2.20 0.88 2.31 2.10 1.10 1.24 38 2.70 2.22 0.87 2.24 1.03 1.18 7 2.43 1.96 0.99 2.15 1.07 1.09 8 2.70 2.15 0.90 2.31 1.00 1.11 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.96(F 9 - 36.24)(1.10) + 38.03 0.96(F 38 - 37.97)(1.03) + 38.03 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1951 36.29 39.13 44.17 51.10 59.11 65.84 69.64 67.96 62.61 51.60 43.33 38.42 1952 39.19 40.83 45.06 52.19 62.35 69.27 72.05 68.73 60.95 52.34 43.45 39.59 1953 38.12 41.13 45.34 54.01 62.45 68.78 70.36 68.58 63.66 54.75 45.32 38.77 1954 37.86 40.30 47.36 52.30 60.37 65.45 70.17 69.77 63.85 54.09 42.96 35.14 1955 33.79 37.97 46.15 54.52 60.50 66.43 69.81 70.97 64.59 54.39 42.89 34.96 1956 34.23 38.15 44.26 51.58 59.34 66.34 68.93 67.40 62.46 53.49 47.95 40.89 1957 40.92 39.80 46.92 53.31 62.48 67.46 69.55 68.00 60.94 53.33 44.30 37.39 1958 32.45 32.69 40.49 50.51 60.09 66.89 69.72 68.56 61.60 53.93 43.10 36.38 1959 33.65 37.13 44.51 53.05 61.60 67.71 70.43 69.86 64.22 54.56 45.26 38.26 1960 34.98 32.10 38.89 46.94 60.19 65.11 70.03 69.32 64.36 55.11 43.15 34.46 1961 32.37 38.32 43.98 50.10 56.08 63.99 68.52 69.08 63.54 55.67 44.93 38.07 1962 35.72 37.76 43.21 51.86 60.70 67.36 68.66 67.48 63.10 54.01 43.00 34.56 1963 30.47 36.15 44.09 53.82 60.73 65.72 68.86 67.48 62.80 54.51 42.19 34.75 1964 30.63 36.28 43.27 53.13 61.68 67.17 69.78 67.97 60.97 53.12 45.12 40.01 1965 36.56 36.94 43.44 52.98 61.51 67.05 68.73 68.70 62.26 53.89 44.33 35.77 1966 32.27 34.65 42.77 51.44 59.04 66.44 69.31 67.63 60.61 52.15 42.97 37.58 1967 33.51 37.84 44.16 52.40 58.57 63.16 66.52 64.42 59.09 50.00 43.04 34.90 1968 31.55 33.68 41.76 51.03 58.38 64.40 68.84 67.46 61.80 52.29 42.17 34.45 1969 31.60 33.10 40.76 50.09 61.00 67.39 69.63 67.53 60.95 51.31 40.63 31.70 1970 30.07 33.76 42.97 52.32 61.59 67.79 70.10 70.15 65.24 56.70 46.59 38.59 1971 35.51 35.95 41.71 49.20 59.32 65.74 69.76 69.16 65.83 56.81 48.58 41.21 1972 38.28 38.19 42.57 51.31 58.03 64.34 67.97 69.07 63.16 53.85 45.80 39.58 1973 37.21 40.20 45.87 53.18 59.54 66.62 71.38 70.90 65.65 57.18 46.21 42.27 1974 39.64 43.99 46.37 53.95 59.37 65.47 68.32 67.74 61.31 52.43 43.15 38.73 1975 37.29 39.72 44.07 52.43 61.05 67.75 70.61 69.46 64.72 55.91 46.71 38.07 1976 36.88 40.96 48.18 53.61 59.88 65.47 68.27 66.55 60.19 50.19 40.16 30.20 1977 28.40 33.88 45.76 55.89 62.02 67.85 70.68 70.95 63.91 55.63 44.95 35.93 1978 29.35 31.54 41.13 51.71 60.88 66.68 71.08 71.01 64.68 56.33 45.90 38.15 1979 32.33 35.65 43.81 53.99 60.32 65.88 69.13 68.88 63.18 55.17 45.93 40.09 1980 34.73 35.97 41.65 51.68 60.11 66.87 70.80 71.14 63.94 53.89 43.49 35.90 1981 33.85 35.35 44.79 52.17 62.28 67.58 70.89 68.36 61.27 52.92 42.62 34.66 1982 32.84 37.56 44.93 53.36 60.51 67.82 69.65 68.21 62.40 54.60 47.46 39.68 1983 36.18 37.44 43.41 51.15 58.47 66.22 71.02 70.04 63.96 54.33 44.08 36.26 1984 34.69 37.66 43.99 50.21 59.50 66.13 70.20 67.64 64.87 55.44 49.31 37.75 1985 35.42 36.42 45.89 54.86 62.08 67.58 70.03 68.79 64.47 58.81 48.18 39.08 1986 34.38 38.38 46.36 53.90 62.53 68.86 71.73 70.60 64.55 57.10 47.40 39.14 1987 35.08 37.54 43.61 53.43 61.86 69.63 72.49 71.09 63.21 53.84 45.30 38.11 1988 34.87 36.65 44.78 52.54 60.05 66.78 71.52 70.66 62.44 53.01 43.14 39.67 1989 36.65 39.92 43.44 49.88 57.99 65.64 70.38 68.75 62.30 52.84 39.22 34.40 1990 33.74 41.35 45.21 51.82 58.93 66.27 69.89 69.06 63.03 54.48 46.10 39.26 1991 36.57 37.88 44.24 53.33 61.64 68.43 69.98 68.65 61.97 52.52 43.82 37.48 1992 36.45 37.34 42.44 48.12 55.73 62.93 66.88 67.16 59.85 51.89 41.35 37.09 1993 33.63 35.37 39.22 48.34 58.03 66.88 70.24 69.60 61.46 52.02 40.86 32.35 1994 30.01 33.25 42.61 48.84 58.27 64.21 69.04 66.54 60.00 52.83 45.44 39.39 1995 34.33 36.55 42.56 51.56 58.75 65.70 70.59 69.24 63.00 51.49 40.59 32.77 1996 30.94 33.19 39.56 48.61 58.79 65.98 69.06 67.26 61.10 50.54 42.51 35.80 1997 36.11 39.28 43.97 48.54 54.43 62.77 67.23 66.18 59.35 49.58 40.83 34.67 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 1 (DJF) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 13 11 56 0.921 0.921 0.918 0.907 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.2 34.7 35.4 34.4 35.1 34.9 36.7 33.7 36.6 36.5 33.6 30.0 34.3 30.9 36.1 cd 9 35.2 31.4 32.9 31.5 32.4 32.2 34.5 33.7 36.3 35.7 33.9 30.3 34.2 30.6 35.4 cd 13 43.3 41.8 43.5 42.6 41.5 40.9 44.3 44.6 45.9 46.0 42.9 41.1 43.7 40.9 44.7 cd 11 38.6 35.5 36.6 35.8 37.0 35.8 38.7 38.1 40.4 40.3 38.4 35.3 38.4 35.2 39.5 cd 56 45.8 43.4 45.6 45.2 44.6 44.3 47.5 47.0 47.9 48.0 45.8 44.0 46.4 43.8 47.4 S- 9 1.0 3.3 2.6 2.9 2.7 2.7 2.1 0.0 0.2 0.7 -0.3 -0.3 0.2 0.3 0.7 S- 13 -7.1 -7.1 -8.1 -8.2 -6.4 -6.0 -7.6-10.9 -9.3 -9.5 -9.3-11.1 -9.3 -9.9 -8.6 S- 11 -2.4 -0.8 -1.2 -1.5 -2.0 -0.9 -2.0 -4.4 -3.9 -3.8 -4.8 -5.3 -4.1 -4.2 -3.4 S- 56 -9.7 -8.8-10.2-10.8 -9.6 -9.4-10.9-13.3-11.3-11.6-12.2-14.0-12.0-12.8-11.3 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange DJF CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 2.11 2.38 2.09 2.91 2.38 0.22 35.15 32.62 2.53 34.60 33.35 1.26 -1.27 13 -8.09-7.78-8.39-7.60-7.58-9.58 42.99-7.84 43.16-8.56 -0.72 11 -2.39-2.08-2.72-1.64-1.84-4.22 37.27-2.13 37.59-2.98 -0.86 56 ***************-9.83********** 45.48***** 45.78***** -0.85 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange DJF CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 2.80 2.89 2.96 2.99 0.99 1.89 1.85 1.02 1.03 13 2.54 2.78 1.06 1.66 1.14 1.07 11 2.77 3.08 0.96 1.75 1.08 1.12 56 2.68 3.06 0.97 1.49 1.27 1.31 Suggested regression eqns from two most closely related CDs ( 9 and 13): 0.96(F 9 - 33.35)(1.02) + 34.60 0.96(F 13 - 43.16)(1.14) + 34.60 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 2 (JFM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 50 38 9 0.920 0.917 0.914 0.912 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 37.4 37.7 36.4 38.4 37.5 36.7 39.9 41.3 37.9 37.3 35.4 33.3 36.5 33.2 39.3 cd 11 39.6 38.8 37.6 40.4 39.8 37.8 43.1 45.5 42.3 41.8 40.0 38.7 40.7 37.4 43.3 cd 50 41.9 40.6 39.3 43.7 43.3 40.3 44.8 48.0 44.3 44.2 41.7 40.9 43.4 39.8 45.2 cd 38 38.8 35.8 34.8 38.7 38.8 35.9 40.4 44.3 40.0 39.7 37.1 35.0 38.3 34.7 39.9 cd 9 36.0 33.8 33.5 35.8 35.3 34.0 38.2 42.0 38.0 37.0 35.2 33.2 36.0 32.8 37.9 S- 11 -2.2 -1.2 -1.2 -2.0 -2.3 -1.1 -3.2 -4.2 -4.5 -4.4 -4.6 -5.4 -4.2 -4.2 -4.0 S- 50 -4.4 -3.0 -2.8 -5.3 -5.7 -3.7 -4.9 -6.6 -6.5 -6.8 -6.3 -7.7 -6.9 -6.6 -6.0 S- 38 -1.4 1.8 1.6 -0.3 -1.2 0.8 -0.5 -2.9 -2.1 -2.3 -1.8 -1.7 -1.7 -1.6 -0.6 S- 9 1.4 3.8 3.0 2.5 2.2 2.7 1.8 -0.7 -0.1 0.3 0.1 0.1 0.5 0.4 1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JFM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.57-2.47-2.71-1.65-2.11-4.48 37.65 40.04-2.39 37.21 40.46-3.24 -0.85 50 -4.82-4.97-4.79-3.70-4.53-6.67 42.38-4.74 42.76-5.54 -0.80 38 -0.12-0.24-0.12 1.03-0.05-1.68 37.64 0.01 38.13-0.92 -0.92 9 2.16 2.29 2.12 3.10 2.37 0.39 35.21 2.43 35.92 1.29 -1.14 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JFM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.71 2.71 2.55 2.61 0.98 2.12 2.27 0.93 0.96 50 3.00 2.97 0.86 2.32 0.92 1.07 38 3.03 2.71 0.94 2.54 0.84 0.89 9 2.79 2.46 1.04 2.36 0.90 0.87 Suggested regression eqns from two most closely related CDs ( 11 and 50): 0.96(F 11 - 40.46)(0.93) + 37.21 0.96(F 50 - 42.76)(0.92) + 37.21 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 3 (FMA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 50 13 0.861 0.853 0.849 0.841 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 43.4 44.0 45.9 46.4 43.6 44.8 43.4 45.2 44.2 42.4 39.2 42.6 42.6 39.6 44.0 cd 38 44.5 44.0 45.9 47.0 45.5 43.8 44.8 48.3 47.9 46.2 42.0 45.5 45.1 41.6 45.8 cd 11 44.9 45.5 47.2 48.4 45.7 45.7 47.3 49.7 48.9 47.2 43.7 47.9 47.0 43.6 48.2 cd 50 47.2 48.8 50.0 51.4 49.7 48.5 49.2 52.0 51.9 50.4 46.3 50.5 50.4 45.8 50.5 cd 13 50.1 51.3 53.7 54.3 50.0 51.1 52.3 55.4 54.8 52.5 49.0 54.0 52.6 50.1 53.7 S- 38 -1.1 0.0 0.0 -0.6 -1.9 0.9 -1.4 -3.1 -3.7 -3.7 -2.8 -2.9 -2.5 -2.0 -1.8 S- 11 -1.5 -1.5 -1.3 -2.0 -2.1 -0.9 -3.9 -4.5 -4.7 -4.7 -4.5 -5.2 -4.4 -4.0 -4.2 S- 50 -3.8 -4.8 -4.1 -5.0 -6.1 -3.7 -5.7 -6.8 -7.6 -8.0 -7.1 -7.9 -7.8 -6.3 -6.5 S- 13 -6.7 -7.3 -7.8 -7.9 -6.4 -6.3 -8.8-10.2-10.6-10.1 -9.8-11.3-10.0-10.5 -9.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange FMA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -1.05-0.85-1.12-0.31-0.69-2.79 44.08 44.93-0.85 43.42 45.19-1.77 -0.92 11 -2.65-2.41-2.84-1.85-2.15-4.54 46.55-2.48 46.72-3.30 -0.82 50 -5.44-5.17-5.66-4.72-4.91-7.33 49.36-5.29 49.50-6.08 -0.80 13 -8.25-8.17-8.16-7.61-7.63***** 52.13-8.05 52.32-8.90 -0.85 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange FMA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 2.04 2.21 2.12 2.29 0.92 1.93 1.81 1.07 1.15 11 1.92 2.12 1.00 1.76 1.10 1.09 50 2.23 2.46 0.86 1.83 1.06 1.23 13 1.96 2.04 1.04 1.92 1.01 0.97 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.93(F 38 - 45.19)(1.07) + 43.42 0.92(F 11 - 46.72)(1.10) + 43.42 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 4 (MAM) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 11 9 50 0.861 0.846 0.845 0.818 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 51.2 50.2 54.9 53.9 53.4 52.5 49.9 51.8 53.3 48.1 48.3 48.8 51.6 48.6 48.5 cd 38 52.1 50.4 56.5 55.4 55.5 53.2 53.0 54.2 58.0 52.8 51.8 52.8 54.4 51.5 51.2 cd 11 52.5 52.1 56.0 55.5 55.1 53.8 53.7 55.4 57.7 52.8 52.3 54.0 55.6 52.8 53.1 cd 9 49.8 48.3 53.7 52.7 52.0 51.0 50.0 52.2 55.1 50.0 49.8 50.5 51.6 49.2 48.8 cd 50 54.6 55.4 59.6 59.0 59.2 57.1 57.0 57.1 60.8 56.5 55.1 56.8 59.2 55.7 55.8 S- 38 -0.9 -0.2 -1.6 -1.5 -2.0 -0.7 -3.1 -2.4 -4.7 -4.7 -3.5 -3.9 -2.8 -2.9 -2.7 S- 11 -1.3 -1.9 -1.1 -1.6 -1.6 -1.2 -3.9 -3.6 -4.3 -4.7 -4.0 -5.2 -4.0 -4.2 -4.6 S- 9 1.4 1.9 1.2 1.2 1.5 1.6 -0.1 -0.3 -1.8 -1.9 -1.5 -1.7 0.0 -0.6 -0.2 S- 50 -3.4 -5.2 -4.7 -5.1 -5.8 -4.5 -7.1 -5.3 -7.5 -8.4 -6.8 -8.0 -7.6 -7.1 -7.2 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MAM CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -1.94-1.97-2.03-1.14-1.49-3.60 52.09 54.02-1.93 51.01 53.51-2.50 -0.57 11 -2.56-2.62-2.72-1.62-1.99-4.43 54.68-2.59 54.16-3.15 -0.56 9 0.77 0.81 0.84 1.53 1.19-1.10 51.18 0.91 50.97 0.04 -0.87 50 -5.64-5.64-5.79-4.71-5.11-7.51 57.72-5.63 57.25-6.25 -0.62 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MAM CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.95 1.82 1.85 1.74 1.06 2.19 2.05 1.06 1.00 11 1.54 1.66 1.11 1.58 1.39 1.25 9 1.68 1.70 1.08 1.83 1.19 1.10 50 1.76 1.82 1.02 1.82 1.20 1.18 Suggested regression eqns from two most closely related CDs ( 38 and 11): 0.93(F 38 - 53.51)(1.06) + 51.01 0.92(F 11 - 54.16)(1.39) + 51.01 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 5 (AMJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 38 13 56 0.875 0.860 0.853 0.845 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 58.5 59.5 62.1 62.5 61.9 60.0 58.0 58.9 61.6 55.7 58.0 58.3 58.8 58.8 54.4 cd 11 60.0 61.4 63.1 64.3 63.3 61.4 60.5 62.1 65.1 60.2 61.9 62.7 62.4 62.5 58.6 cd 38 60.2 61.8 63.9 64.7 64.3 62.1 60.8 61.6 66.8 60.5 61.7 62.9 62.5 62.4 58.4 cd 13 65.4 66.7 69.0 70.0 68.1 66.6 66.6 67.8 69.9 65.2 67.5 68.3 68.1 68.1 63.9 cd 56 66.4 67.9 69.7 70.8 69.3 68.3 67.7 69.0 70.9 66.6 67.8 69.1 69.3 68.9 65.1 S- 11 -1.5 -1.9 -1.1 -1.7 -1.5 -1.3 -2.5 -3.2 -3.4 -4.4 -3.9 -4.5 -3.6 -3.7 -4.2 S- 38 -1.8 -2.3 -1.8 -2.1 -2.5 -2.1 -2.8 -2.7 -5.1 -4.8 -3.7 -4.6 -3.8 -3.6 -4.0 S- 13 -6.9 -7.2 -6.9 -7.5 -6.2 -6.5 -8.6 -8.9 -8.3 -9.5 -9.5-10.0 -9.4 -9.3 -9.4 S- 56 -7.9 -8.4 -7.6 -8.2 -7.4 -8.2 -9.7-10.0 -9.2-10.9 -9.8-10.8-10.6-10.1-10.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange AMJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.49-2.67-2.71-1.69-1.85-3.95 60.61 63.26-2.65 59.14 61.96-2.83 -0.18 38 -2.79-2.97-2.98-2.09-2.11-4.23 63.55-2.93 62.31-3.18 -0.24 13 -7.83-8.25-7.64-7.07-7.32-9.33 68.64-8.03 67.41-8.27 -0.24 56 -8.97-9.32-8.88-8.35-8.39***** 69.76-9.15 68.44-9.31 -0.16 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange AMJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.80 1.51 1.59 1.45 1.10 2.20 1.64 1.34 1.22 38 1.68 1.64 0.97 1.97 1.12 1.15 13 1.50 1.36 1.17 1.66 1.33 1.13 56 1.46 1.32 1.21 1.53 1.44 1.19 Suggested regression eqns from two most closely related CDs ( 11 and 38): 0.94(F 11 - 61.96)(1.34) + 59.14 0.93(F 38 - 62.31)(1.12) + 59.14 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 6 (MJJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 9 38 39 0.866 0.860 0.856 0.836 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 66.2 66.1 67.6 68.9 69.6 66.8 65.6 66.3 68.4 62.9 66.9 64.2 65.7 66.0 62.8 cd 11 68.1 67.7 68.5 70.8 71.1 67.9 67.2 68.6 71.0 66.8 70.3 68.0 68.7 69.1 66.4 cd 9 66.2 66.2 66.6 68.5 69.6 67.2 66.4 66.4 70.4 65.1 68.3 66.7 67.2 66.5 64.5 cd 38 69.2 68.5 69.2 71.7 72.3 70.0 68.1 68.7 73.0 67.3 70.4 69.0 69.8 69.4 67.1 cd 39 71.4 71.0 71.7 74.1 74.6 72.4 70.1 70.5 74.9 69.9 72.8 71.1 71.8 71.8 69.5 S- 11 -1.9 -1.5 -0.9 -2.0 -1.5 -1.2 -1.6 -2.4 -2.5 -3.9 -3.5 -3.8 -3.0 -3.1 -3.7 S- 9 0.1 0.0 1.0 0.3 0.0 -0.4 -0.7 -0.1 -2.0 -2.2 -1.4 -2.4 -1.5 -0.5 -1.7 S- 38 -2.9 -2.4 -1.7 -2.9 -2.7 -3.2 -2.5 -2.4 -4.6 -4.3 -3.5 -4.8 -4.1 -3.4 -4.3 S- 39 -5.2 -4.9 -4.1 -5.2 -5.0 -5.6 -4.4 -4.2 -6.5 -6.9 -5.9 -6.9 -6.1 -5.8 -6.7 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange MJJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.32-2.84-2.42-1.63-1.67-3.36 66.70 69.39-2.69 66.27 68.69-2.42 0.27 9 -0.49-0.66-0.70 0.08 0.14-1.68 67.31-0.61 67.04-0.77 -0.17 38 -3.25-3.77-3.38-2.72-2.49-4.14 70.33-3.63 69.57-3.31 0.32 39 -5.38-5.48-5.50-5.16-4.68-6.40 72.21-5.51 71.83-5.56 -0.05 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange MJJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.55 1.47 1.33 1.43 0.93 1.89 1.45 1.30 1.39 9 1.42 1.45 0.92 1.53 1.24 1.35 38 1.56 1.61 0.83 1.65 1.14 1.38 39 1.51 1.60 0.83 1.61 1.18 1.41 Suggested regression eqns from two most closely related CDs ( 11 and 9): 0.93(F 11 - 68.69)(1.30) + 66.27 0.93(F 9 - 67.04)(1.24) + 66.27 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 7 (JJA) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 38 9 10 0.805 0.797 0.776 0.774 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 71.0 70.2 70.0 71.7 72.5 71.5 70.4 69.9 70.0 66.9 70.2 69.0 70.6 69.1 67.2 cd 11 72.8 71.7 71.2 73.6 73.7 72.6 71.6 72.1 72.6 70.2 73.9 72.1 73.1 71.5 70.7 cd 38 75.2 73.3 72.0 74.1 74.8 74.8 72.8 72.6 74.4 70.3 74.3 73.4 75.3 72.4 71.8 cd 9 71.4 70.5 69.1 71.0 72.7 72.1 70.8 70.3 72.0 68.5 72.1 71.2 72.4 69.8 69.2 cd 10 76.1 75.1 74.4 76.6 77.6 76.1 75.9 75.8 76.8 74.0 77.2 76.2 76.5 74.8 74.0 S- 11 -1.8 -1.5 -1.1 -1.8 -1.2 -1.1 -1.2 -2.2 -2.6 -3.3 -3.6 -3.0 -2.5 -2.4 -3.5 S- 38 -4.2 -3.1 -1.9 -2.3 -2.3 -3.3 -2.4 -2.7 -4.4 -3.5 -4.1 -4.4 -4.7 -3.3 -4.6 S- 9 -0.4 -0.3 0.9 0.7 -0.2 -0.6 -0.4 -0.4 -2.0 -1.7 -1.9 -2.2 -1.8 -0.7 -1.9 S- 10 -5.1 -4.9 -4.4 -4.9 -5.1 -4.5 -5.5 -5.9 -6.8 -7.1 -7.0 -7.2 -5.9 -5.7 -6.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JJA CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.29-2.93-2.46-1.65-1.62-3.00 69.68 72.39-2.71 70.02 72.21-2.20 0.51 38 -3.51-4.19-3.69-3.04-2.68-4.14 73.63-3.94 73.43-3.41 0.53 9 -0.69-0.95-1.05-0.13 0.09-1.74 70.51-0.83 70.87-0.85 -0.02 10 -5.62-5.90-5.82-5.11-4.95-6.64 75.44-5.76 75.81-5.79 -0.03 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JJA CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.25 1.21 0.88 1.17 0.75 1.47 1.06 1.38 1.84 38 1.33 1.30 0.67 1.39 1.05 1.56 9 1.17 1.06 0.83 1.25 1.17 1.42 10 1.07 0.93 0.94 1.08 1.36 1.45 Suggested regression eqns from two most closely related CDs ( 11 and 38): 0.90(F 11 - 72.21)(1.38) + 70.02 0.89(F 38 - 73.43)(1.05) + 70.02 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 8 (JAS) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 9 38 11 39 0.847 0.844 0.826 0.826 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 70.0 67.6 68.8 70.6 71.1 70.7 68.8 69.1 68.7 67.2 69.6 66.5 69.2 67.3 66.2 cd 9 70.2 67.5 68.5 69.8 70.9 70.7 69.1 69.1 70.2 68.3 71.2 68.4 70.4 67.7 67.8 cd 38 74.3 70.4 70.9 72.9 72.8 73.4 71.4 71.5 72.4 69.8 72.8 70.4 73.3 70.4 70.7 cd 11 71.9 69.2 69.7 72.2 71.9 71.4 70.2 71.1 71.5 70.1 72.8 69.4 71.9 69.7 70.2 cd 39 76.9 72.5 73.0 75.1 75.1 75.2 72.8 73.5 74.9 71.9 74.8 72.1 75.1 72.3 73.0 S- 9 -0.1 0.2 0.3 0.8 0.2 -0.1 -0.3 0.0 -1.5 -1.1 -1.6 -1.8 -1.1 -0.4 -1.6 S- 38 -4.3 -2.8 -2.2 -2.3 -1.7 -2.8 -2.6 -2.5 -3.8 -2.7 -3.2 -3.8 -4.1 -3.2 -4.5 S- 11 -1.8 -1.5 -0.9 -1.6 -0.8 -0.8 -1.4 -2.1 -2.8 -3.0 -3.2 -2.9 -2.6 -2.4 -4.0 S- 39 -6.9 -4.8 -4.2 -4.5 -4.0 -4.5 -4.1 -4.5 -6.2 -4.7 -5.2 -5.6 -5.8 -5.0 -6.8 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange JAS CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 9 -0.46-0.90-0.79 0.27 0.20-1.32 68.66 69.36-0.70 68.75 69.30-0.55 0.15 38 -3.23-4.13-3.44-2.51-2.60-3.60 72.45-3.79 71.83-3.08 0.71 11 -2.20-2.94-2.38-1.44-1.46-2.99 71.32-2.66 70.88-2.12 0.54 39 -5.12-5.82-5.26-4.40-4.65-5.62 74.18-5.52 73.87-5.12 0.40 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange JAS CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 9 1.46 1.38 0.98 1.36 0.72 1.48 1.21 1.22 1.69 38 1.54 1.41 0.70 1.33 1.11 1.59 11 1.34 1.14 0.86 1.11 1.33 1.55 39 1.60 1.40 0.70 1.45 1.02 1.46 Suggested regression eqns from two most closely related CDs ( 9 and 38): 0.92(F 9 - 69.30)(1.22) + 68.75 0.92(F 38 - 71.83)(1.11) + 68.75 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season 9 (ASO) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 38 9 11 39 0.839 0.839 0.829 0.801 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 64.0 64.9 64.5 64.6 63.2 62.4 62.3 63.0 62.0 59.8 61.5 60.0 63.0 61.1 59.3 cd 38 67.6 66.8 66.1 66.1 63.9 64.0 64.8 65.2 65.8 62.7 64.4 63.8 66.5 64.8 64.0 cd 9 63.7 64.3 63.7 63.3 61.9 61.4 62.6 63.2 63.5 61.0 63.3 61.3 64.2 62.1 61.2 cd 11 65.7 66.2 65.6 65.8 63.6 63.1 64.2 65.3 65.2 63.1 65.0 63.4 65.5 64.1 63.9 cd 39 69.9 68.5 67.5 67.8 66.3 66.0 66.6 66.6 68.3 64.7 66.1 65.9 68.5 66.5 66.2 S- 38 -3.7 -2.0 -1.7 -1.6 -0.7 -1.6 -2.5 -2.2 -3.9 -2.9 -3.0 -3.8 -3.5 -3.7 -4.6 S- 9 0.3 0.6 0.8 1.3 1.3 1.1 -0.3 -0.1 -1.5 -1.2 -1.8 -1.3 -1.2 -1.0 -1.8 S- 11 -1.8 -1.4 -1.1 -1.3 -0.4 -0.7 -1.9 -2.3 -3.2 -3.3 -3.6 -3.4 -2.5 -3.0 -4.5 S- 39 -6.0 -3.6 -3.1 -3.3 -3.1 -3.5 -4.3 -3.6 -6.3 -4.9 -4.7 -5.9 -5.5 -5.4 -6.9 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange ASO CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 38 -2.71-3.52-2.98-1.70-2.03-3.61 62.79 66.08-3.28 62.37 65.11-2.74 0.54 9 -0.08-0.52-0.39 0.87 0.62-1.39 63.15-0.36 62.70-0.33 0.03 11 -2.15-2.87-2.31-1.18-1.39-3.36 65.38-2.59 64.65-2.28 0.31 39 -4.44-5.04-4.63-3.43-3.82-5.63 67.69-4.89 67.02-4.65 0.24 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange ASO CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 38 1.70 1.65 1.22 1.37 0.89 1.70 1.31 1.29 1.46 9 1.50 1.33 0.92 1.10 1.55 1.69 11 1.43 1.27 0.96 1.04 1.63 1.70 39 1.61 1.33 0.91 1.31 1.30 1.42 Suggested regression eqns from two most closely related CDs ( 38 and 9): 0.92(F 38 - 65.11)(1.29) + 62.37 0.92(F 9 - 62.70)(1.55) + 62.37 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season10 (SON) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 38 9 13 0.883 0.874 0.857 0.855 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 54.3 55.4 58.8 57.1 53.8 53.0 52.8 54.5 52.5 51.9 52.0 52.8 51.5 50.5 49.6 cd 11 55.8 56.6 60.0 58.6 54.5 53.7 55.3 57.2 55.9 55.1 55.9 56.3 54.1 54.0 54.2 cd 38 56.9 56.4 59.6 57.3 54.9 53.8 55.4 57.2 55.7 54.7 54.3 56.5 53.6 53.6 54.0 cd 9 53.6 54.0 57.5 54.8 52.7 51.1 53.4 55.1 53.4 53.0 53.7 54.2 52.0 51.1 51.5 cd 13 60.9 61.6 65.0 63.1 59.8 58.9 61.1 62.8 60.4 60.2 61.5 60.8 59.7 59.0 59.5 S- 11 -1.5 -1.1 -1.2 -1.5 -0.6 -0.6 -2.4 -2.7 -3.4 -3.2 -3.9 -3.4 -2.6 -3.5 -4.6 S- 38 -2.6 -0.9 -0.8 -0.2 -1.1 -0.8 -2.6 -2.7 -3.2 -2.8 -2.3 -3.7 -2.1 -3.0 -4.5 S- 9 0.7 1.5 1.3 2.3 1.1 1.9 -0.6 -0.7 -0.9 -1.1 -1.7 -1.3 -0.5 -0.6 -1.9 S- 13 -6.6 -6.1 -6.1 -6.0 -6.0 -5.9 -8.3 -8.4 -7.9 -8.4 -9.5 -8.0 -8.2 -8.4-10.0 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange SON CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.08-2.39-2.23-1.24-1.46-3.53 53.92 56.22-2.30 53.38 55.81-2.43 -0.13 38 -2.02-2.35-2.31-1.11-1.56-3.09 56.19-2.28 55.61-2.23 0.04 9 0.32 0.14-0.01 1.25 0.92-1.15 53.73 0.19 53.41-0.03 -0.22 13 -7.25-7.68-7.34-6.42-6.61-8.62 61.38-7.46 60.96-7.58 -0.12 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange SON CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 1.99 1.62 1.01 0.81 1.24 2.33 1.72 1.36 1.09 38 1.76 1.01 1.00 1.67 1.40 1.40 9 1.66 0.90 1.12 1.63 1.43 1.28 13 1.52 0.79 1.27 1.60 1.45 1.15 Suggested regression eqns from two most closely related CDs ( 11 and 38): 0.94(F 11 - 55.81)(1.36) + 53.38 0.93(F 38 - 55.61)(1.40) + 53.38 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season11 (OND) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 11 13 56 9 0.909 0.893 0.885 0.880 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 44.1 49.3 48.2 47.4 45.3 43.1 39.2 46.1 43.8 41.3 40.9 45.4 40.6 42.5 40.8 cd 11 45.3 50.4 49.3 48.7 46.0 44.0 42.8 49.2 47.2 45.3 45.6 48.9 43.8 45.8 44.7 cd 13 50.7 55.5 54.8 53.3 50.8 49.6 49.3 54.8 52.4 50.7 50.8 53.5 49.6 50.4 49.9 cd 56 52.3 57.4 56.8 56.1 53.5 52.7 51.5 56.3 54.3 52.4 52.8 55.7 51.6 52.8 52.1 cd 9 42.2 47.7 45.8 44.5 43.5 41.2 39.4 46.7 44.4 42.8 42.9 46.3 41.1 42.6 42.3 S- 11 -1.2 -1.1 -1.1 -1.3 -0.7 -0.8 -3.5 -3.1 -3.3 -4.0 -4.8 -3.5 -3.2 -3.3 -3.8 S- 13 -6.6 -6.2 -6.7 -5.9 -5.5 -6.5-10.1 -8.7 -8.6 -9.3 -9.9 -8.1 -9.0 -7.9 -9.1 S- 56 -8.2 -8.1 -8.7 -8.7 -8.2 -9.5-12.3-10.2-10.5-11.1-12.0-10.2-11.0-10.3-11.3 S- 9 1.9 1.6 2.3 2.9 1.8 1.9 -0.1 -0.6 -0.6 -1.5 -2.0 -0.9 -0.5 -0.1 -1.4 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange OND CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 11 -2.12-2.10-2.34-1.33-1.58-3.72 44.09 46.20-2.12 43.88 46.46-2.59 -0.47 13 -7.47-7.62-7.70-6.67-6.92-8.84 51.66-7.58 51.75-7.87 -0.30 56 -9.36-9.39-9.36-8.49-9.14***** 53.39-9.30 53.89***** -0.72 9 0.79 0.92 0.58 1.51 1.41-1.01 43.22 0.87 43.56 0.31 -0.56 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange OND CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 11 2.34 2.00 1.41 1.44 0.98 2.94 2.26 1.30 1.33 13 1.84 1.31 1.08 2.05 1.43 1.33 56 1.82 1.22 1.16 1.96 1.50 1.29 9 2.15 1.54 0.92 2.26 1.30 1.42 Suggested regression eqns from two most closely related CDs ( 11 and 13): 0.95(F 11 - 46.46)(1.30) + 43.88 0.95(F 13 - 51.75)(1.43) + 43.88 Station#1885 WYTHEVILLE/1 S , va 4930103 lat/lon 81.08 36.93 6M season12 (NDJ) cd(maxcor1,2,3,4) ----cormax1,2,3,4---- 13 11 56 9 0.916 0.908 0.898 0.883 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 STN: 36.3 37.8 39.1 39.1 38.1 39.7 34.4 39.3 37.5 37.1 32.3 39.4 32.8 35.8 34.7 cd 13 43.2 45.1 46.5 45.4 44.3 46.4 44.9 48.0 46.5 46.1 43.2 47.8 41.8 44.6 44.8 cd 11 37.3 38.8 40.2 40.8 39.5 41.2 38.1 43.0 40.9 41.3 37.5 42.8 36.5 39.2 39.7 cd 56 45.0 47.1 48.7 48.8 47.7 49.6 47.2 49.9 48.1 48.4 45.4 50.0 44.6 47.6 47.0 cd 9 33.2 35.8 36.7 35.9 36.4 38.0 34.3 39.5 37.2 38.0 33.7 39.8 32.6 35.2 37.3 S- 13 -6.9 -7.3 -7.4 -6.3 -6.2 -6.7-10.5 -8.7 -9.0 -9.0-10.9 -8.4 -9.0 -8.8-10.1 S- 11 -1.0 -1.1 -1.1 -1.7 -1.3 -1.5 -3.7 -3.8 -3.4 -4.2 -5.2 -3.4 -3.8 -3.4 -5.0 S- 56 -8.7 -9.3 -9.6 -9.7 -9.5 -9.9-12.8-10.6-10.6-11.3-13.0-10.6-11.8-11.8-12.3 S- 9 3.0 2.0 2.4 3.3 1.7 1.6 0.1 -0.3 0.3 -0.9 -1.3 -0.5 0.2 0.6 -2.6 BIAS=== 47yr by decade, 1950s to 90s Early means dif Recent means dif Bchange NDJ CD 5197 5160 6170 7180 8190 9197 S5165 C5165 S-C S8397 C8397 S-C rec-old 13 -7.92-7.96-8.11-7.23-7.42-9.31 37.16 45.11-7.95 36.88 45.23-8.35 -0.40 11 -2.30-2.05-2.54-1.44-1.93-4.05 39.26-2.10 39.78-2.90 -0.81 56 ***************-9.15-9.92***** 47.11-9.95 47.66***** -0.83 9 1.41 1.78 1.37 2.22 1.67-0.60 35.43 1.73 36.24 0.64 -1.09 SDEV=== 47yr sdevs (S=station) Early sdevs Recent sdevs Rchange NDJ CD S5197 C5197 (C=CD) S5165 C5165 S/C S8397 C8397 S/C rec/old 13 2.60 2.24 2.09 1.95 1.07 2.34 1.65 1.42 1.32 11 2.43 2.14 0.98 1.87 1.26 1.29 56 2.30 2.03 1.03 1.64 1.43 1.39 9 2.64 2.20 0.95 2.10 1.12 1.17 Suggested regression eqns from two most closely related CDs ( 13 and 11): 0.96(F 13 - 45.23)(1.42) + 36.88 0.95(F 11 - 39.78)(1.26) + 36.88