PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: WASHINGTON DULLES MONTH: JUNE YEAR: 2005 LATITUDE: 38 57 N LONGITUDE: 77 27 W TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND ================================================================================ 1 2 3 4 5 6A 6B 7 8 9 10 11 12 13 14 15 16 17 18 AVG MX 2MIN DY MAX MIN AVG DEP HDD CDD WTR SNW DPTH SPD SPD DIR MIN PSBL S-S WX SPD DR ================================================================================ 1 79 51 65 -2 0 0 0.00 0.0 0 4.5 15 190 M M 6 18 18 190 2 67 55 61 -6 4 0 0.01 0.0 0 6.5 14 80 M M 8 18 16 80 3 64 59 62 -6 3 0 0.36 0.0 0 6.7 12 40 M M 10 1 14 40 4 79 60 70 2 0 5 T 0.0 0 2.7 9 290 M M 7 18 13 280 5 88 60 74 6 0 9 0.00 0.0 0 2.0 7 260 M M 2 18 10 360 6 92 66 79 10 0 14 0.24 0.0 0 5.0 29 310 M M 4 138 35 360 7 89 64 77 8 0 12 0.00 0.0 0 4.6 10 290 M M 7 1 13 310 8 91 63 77 8 0 12 0.00 0.0 0 4.5 16 190 M M 3 18 21 190 9 87 68 78 9 0 13 0.05 0.0 0 4.1 7 180 M M 6 138 8 180 10 87 72 80 10 0 15 T 0.0 0 7.6 16 200 M M 6 1 20 210 11 88 72 80 10 0 15 0.00 0.0 0 8.1 15 200 M M 6 20 180 12 87 67 77 7 0 12 0.00 0.0 0 9.2 18 190 M M 5 22 220 13 90 72 81 11 0 16 0.15 0.0 0 7.7 23 250 M M 6 13 30 250 14 92 68 80 9 0 15 0.09 0.0 0 6.4 22 310 M M 2 138 33 310 15 86 70 78 7 0 13 0.00 0.0 0 6.3 18 290 M M 5 18 24 280 16 83 61 72 1 0 7 0.00 0.0 0 7.7 24 320 M M 5 29 320 17 76 54 65 -6 0 0 0.00 0.0 0 6.7 17 320 M M 4 22 320 18 81 51 66 -6 0 1 0.00 0.0 0 5.5 12 40 M M 4 15 310 19 77 63 70 -2 0 5 0.00 0.0 0 7.9 15 80 M M 7 18 70 20 73 53 63 -9 2 0 0.00 0.0 0 3.2 9 30 M M 7 18 10 60 21 82 51 67 -5 0 2 0.00 0.0 0 4.6 12 280 M M 3 18 15 290 22 84 62 73 0 0 8 0.01 0.0 0 5.1 15 60 M M 7 138 18 320 23 83 62 73 0 0 8 0.00 0.0 0 6.1 12 10 M M 2 15 10 24 88 63 76 3 0 11 0.00 0.0 0 8.3 17 200 M M 3 21 200 25 91 64 78 5 0 13 0.00 0.0 0 5.7 13 180 M M 4 16 200 26 91 62 77 4 0 12 0.00 0.0 0 3.6 10 80 M M 6 18 15 80 27 91 69 80 6 0 15 0.00 0.0 0 5.6 18 60 M M 6 18 23 70 28 93 67 80 6 0 15 0.33 0.0 0 5.2 25 200 M M 6 138 35 210 29 86 68 77 3 0 12 0.67 0.0 0 8.0 20 30 M M 8 13 25 30 30 89 67 78 4 0 13 0.01 0.0 0 4.2 10 10 M M 6 18 14 40 ================================================================================ SM 2534 1884 9 273 1.92 0.0 173.3 M 161 ================================================================================ AV 84.5 62.8 5.8 FASTST PSBL % 5 MAX(MPH) MISC ----> 29 310 # 35 210 ================================================================================ NOTES: # LAST OF SEVERAL OCCURRENCES COLUMN 17 PEAK WIND IN M.P.H. PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2 STATION: WASHINGTON DULLES MONTH: JUNE YEAR: 2005 LATITUDE: 38 57 N LONGITUDE: 77 27 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 73.6 TOTAL FOR MONTH: 1.92 1 = FOG OR MIST DPTR FM NORMAL: 2.7 DPTR FM NORMAL: -2.15 2 = FOG REDUCING VISIBILITY HIGHEST: 93 ON 28 GRTST 24HR 0.68 ON 29-30 TO 1/4 MILE OR LESS LOWEST: 51 ON 21,18 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 0 7 = DUSTSTORM OR SANDSTORM: VSBY 1/2 MILE OR LESS 8 = SMOKE OR HAZE [NO. OF DAYS WITH] [WEATHER - DAYS WITH] 9 = BLOWING SNOW X = TORNADO MAX 32 OR BELOW: 0 0.01 INCH OR MORE: 10 MAX 90 OR ABOVE: 8 0.10 INCH OR MORE: 5 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 9 CLEAR (SCALE 0-3) 6 DPTR FM NORMAL -12 PTCLDY (SCALE 4-7) 21 TOTAL FM JUL 1 4562 CLOUDY (SCALE 8-10) 3 DPTR FM NORMAL -390 [CDD (BASE 65) ] TOTAL THIS MO. 273 DPTR FM NORMAL 70 [PRESSURE DATA] TOTAL FM JAN 1 301 HIGHEST SLP M ON M DPTR FM NORMAL 23 LOWEST SLP M ON M [REMARKS]