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JAMES RIVER BASIN
06470875 JAMES RIVER AT DAKOTA LAKE DAM NEAR LUDDEN, ND
LOCATION.--Lat 45o56'52", long 98o10'29", in SE1/4NE1/4NE1/4 sec.34, T.129 N., R.60 W., Dickey County, Hydrologic Unit 10160003,
on left bank, 10 ft upstream from dam, 4.5 mi southwest of Ludden and 0.8 mi upstream from North Dakota-South Dakota state
line.
DRAINAGE AREA.--5,480 mi2, of which about 3,300 mi2 are probably noncontributing.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--October 1981 to current year.
GAGE.--Water-stage recorder and concrete dam control. Datum of gage is 1,280.00 ft above sea level.
REMARKS.--Records good except for estimated discharge, which are fair. Estimated discharges, Nov. 15 to Sept. 30. Flow regulated
by upstream reservoirs, Jamestown Reservoir (station 06469000), Pipestem Lake, capacity 147,000 acre-ft, and Lake LaMoure.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 149 247 304 64 e45 e210 1110 e1110 1860 1180 e945 e975
2 160 244 309 63 e44 e235 1060 e1110 1790 1180 e940 e1000
3 145 249 313 59 e45 e270 1040 e1100 1710 1140 e940 1050
4 167 243 332 55 e45 e300 1030 e1090 1650 1140 e935 1140
5 205 241 312 54 e44 e330 1080 e1170 1750 1110 e940 1140
6 244 223 270 52 e43 e370 1120 e1250 1690 1080 e950 1090
7 224 218 263 51 e44 e400 1130 e1390 1690 1070 e960 1050
8 101 204 265 50 e45 e430 1170 1370 1630 1170 e955 1040
9 185 e200 263 43 e45 e440 1180 1420 1600 1200 e930 993
10 245 e170 258 46 e45 435 1200 1590 1580 1180 e915 967
11 173 128 256 47 e44 399 1230 e1710 1530 1130 e905 1010
12 230 141 250 45 e43 373 1260 e1830 1480 1100 e910 973
13 202 155 237 45 e43 343 1280 e1950 1440 1090 e915 996
14 184 172 228 45 e43 316 1330 2120 1390 1080 e920 1030
15 212 178 229 45 e43 289 1320 2280 1350 1030 e925 1050
16 278 186 219 46 e43 283 1340 2450 1330 1020 e935 1020
17 384 199 202 e45 e43 294 1270 2580 1280 997 e950 996
18 336 208 165 e45 e43 306 1190 2660 1240 1010 e970 1020
19 349 190 145 e44 e42 338 1160 2700 1270 996 e935 1040
20 343 193 129 e45 e42 412 1160 2720 1240 e990 e905 998
21 335 193 124 e45 e41 513 e1160 2680 1230 e985 e925 987
22 320 186 111 e45 e40 655 e1190 2610 1190 e980 e935 974
23 303 190 100 e46 e40 882 e1170 2560 1250 e980 e940 1020
24 321 199 90 e45 e40 1140 e1150 2490 1250 e975 e930 982
25 311 235 85 e44 e52 1270 e1160 2400 1140 e975 e915 971
26 291 258 79 e44 e90 1220 e1160 2280 1190 e970 e905 961
27 279 277 76 e45 e140 1060 1170 2230 1200 e965 e895 947
28 264 282 75 e45 e170 1240 1170 2130 1200 e965 e890 931
29 258 291 69 e45 --- 1200 1150 2050 1150 e960 e910 874
30 267 292 67 e45 --- 1140 e1120 2000 1190 e955 e920 877
31 242 --- 64 e45 --- 1110 --- 1980 --- e950 e940 ---
TOTAL 7707 6392 5889 1483 1487 18203 35260 61010 42490 32553 28785 30102
MEAN 249 213 190 47.8 53.1 587 1175 1968 1416 1050 929 1003
MAX 384 292 332 64 170 1270 1340 2720 1860 1200 970 1140
MIN 101 128 64 43 40 210 1030 1090 1140 950 890 874
AC-FT 15290 12680 11680 2940 2950 36110 69940 121000 84280 64570 57100 59710
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 1999, BY WATER YEAR (WY)
MEAN 176 122 52.1 25.5 26.2 354 871 617 443 369 298 250
MAX 867 512 190 77.1 68.5 853 4617 2316 1447 1181 1143 1003
(WY) 1994 1994 1999 1995 1995 1995 1997 1997 1997 1995 1993 1999
MIN 1.86 .20 .28 .056 .62 26.0 33.4 9.92 2.12 .015 .000 .011
(WY) 1989 1991 1991 1991 1989 1990 1990 1990 1988 1988 1988 1990
SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1982 - 1999
ANNUAL TOTAL 160321 271361
ANNUAL MEAN 439 743 301
HIGHEST ANNUAL MEAN 969 1997
LOWEST ANNUAL MEAN 10.3 1990
HIGHEST DAILY MEAN 2620 Apr 1 2720 May 20 7500 Apr 6 1997
LOWEST DAILY MEAN 37 Feb 2 40 Feb 22 .00 Oct 8 1981
ANNUAL SEVEN-DAY MINIMUM 40 Jan 30 41 Feb 18 .00 Jul 10 1985
INSTANTANEOUS PEAK FLOW 2750 May 20 7500 Apr 6 1997
INSTANTANEOUS PEAK STAGE 14.02 May 20 17.86 Apr 6 1997
INSTANTANEOUS LOW FLOW 40 Feb 23 .00 Oct 2 1981
ANNUAL RUNOFF (AC-FT) 318000 538200 218000
10 PERCENT EXCEEDS 965 1400 980
50 PERCENT EXCEEDS 267 910 75
90 PERCENT EXCEEDS 57 45 .10
e Estimated
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water year 1983 to current year.
PERIOD OF DAILY RECORDS.--
WATER TEMPERATURE: Water year 1983 to current year.
SPECIFIC CONDUCTANCE: Water year 1983 to current year.
INSTRUMENTATION.--Water-quality monitor since October 1982.
EXTREMES FOR PERIOD OF DAILY RECORD.--
WATER TEMPERATURE: Maximum recorded, 31.6oC, July 13, 1988; minimum recorded, 0.0oC on several days during the winter months
each year.
SPECIFIC CONDUCTANCE: Maximum recorded, 3,580 microsiemens, Mar. 17, 1993; minimum recorded, 217 microsiemens, July 13, 1983.
EXTREMES FOR CURRENT YEAR.--
WATER TEMPERATURE: Maximum recorded, 30.1oC, July 29; minimum recorded, 0.0oC on several days during winter months.
SPECIFIC CONDUCTANCE: Maximum recorded, 1,910 microsiemens, Dec. 31; minimum recorded, 480 microsiemens, Mar. 24 and 25.
REMARKS.--Records fair.
WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DIS- PH PH SPE-
CHARGE, WATER WATER CIFIC SPE- HARD- MAGNE-
INST. WHOLE WHOLE CON- CIFIC NESS CALCIUM SIUM,
CUBIC FIELD LAB DUCT- CON- TEMPER- TEMPER- TOTAL DIS- DIS-
FEET (STAND- (STAND- ANCE DUCT- ATURE ATURE (MG/L SOLVED SOLVED
DATE TIME PER ARD ARD LAB ANCE AIR WATER AS (MG/L (MG/L
SECOND UNITS) UNITS) (US/CM) (US/CM) (DEG C) (DEG C) CACO3) AS CA) AS MG)
(00061) (00400) (00403) (90095) (00095) (00020) (00010) (00900) (00915) (00925)
OCT
26... 1300 283 -- -- -- 1120 16.5 11.1 -- -- --
DEC
15... 1530 225 -- -- -- 1320 2.5 1.6 -- -- --
MAR
11... 1300 387 -- -- -- 730 2.0 .3 -- -- --
25... 1245 1260 7.6 -- 429 460 8.0 .8 150 32 17
31... 1330 1150 -- -- -- 640 -- 8.8 -- -- --
APR
13... 1245 1280 -- -- -- 840 16.5 10.2 -- -- --
MAY
13... 1345 1940 -- -- -- 900 13.5 13.0 -- -- --
19... 1000 2590 -- -- -- 792 15.0 16.2 -- -- --
JUN
29... 0945 1150 -- -- -- 730 18.0 20.1 -- -- --
SEP
15... 1345 1070 8.3 8.3 -- 904 19.5 15.0 350 69 43
ANC SOLIDS,
POTAS- SODIUM UNFLTRD CHLO- FLUO- SOLIDS, RESIDUE
SIUM, AD- SODIUM, TIT 4.5 RIDE, RIDE, SULFATE DIS- AT 180
DIS- SORP- DIS- LAB DIS- DIS- DIS- SOLVED DEG. C
SOLVED TION SOLVED (MG/L SOLVED SOLVED SOLVED (TONS DIS-
DATE (MG/L RATIO SODIUM (MG/L AS (MG/L (MG/L (MG/L PER SOLVED
AS K) PERCENT AS NA) CACO3) AS CL) AS F) AS SO4) DAY) (MG/L)
(00935) (00931) (00932) (00930) (90410) (00940) (00950) (00945) (70302) (70300)
OCT
26... -- -- -- -- -- -- -- -- -- --
DEC
15... -- -- -- -- -- -- -- -- -- --
MAR
11... -- -- -- -- -- -- -- -- -- --
25... 11 .9 26 26 125 16 .10 86 942 277
31... -- -- -- -- -- -- -- -- -- --
APR
13... -- -- -- -- -- -- -- -- -- --
MAY
13... -- -- -- -- -- -- -- -- -- --
19... -- -- -- -- -- -- -- -- -- --
JUN
29... -- -- -- -- -- -- -- -- -- --
SEP
15... 15 2 28 65 297 20 .10 210 1690 585
SOLIDS,
SUM OF MANGA- MOLYB- SELE- STRON-
CONSTI- ARSENIC IRON, LEAD, LITHIUM NESE, MERCURY DENUM, NIUM, TIUM,
TUENTS, DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS-
DIS- SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED
DATE SOLVED (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L
(MG/L) AS AS) AS FE) AS PB) AS LI) AS MN) AS HG) AS MO) AS SE) AS SR)
(70301) (01000) (01046) (01049) (01130) (01056) (71890) (01060) (01145) (01080)
OCT
26... -- -- -- -- -- -- -- -- -- --
DEC
15... -- -- -- -- -- -- -- -- -- --
MAR
11... -- -- -- -- -- -- -- -- -- --
25... 264 1 90 1.0 20 240 <.1 <1.0 <1 230
31... -- -- -- -- -- -- -- -- -- --
APR
13... -- -- -- -- -- -- -- -- -- --
MAY
13... -- -- -- -- -- -- -- -- -- --
19... -- -- -- -- -- -- -- -- -- --
JUN
29... -- -- -- -- -- -- -- -- -- --
SEP
15... 601 5 120 1.0 60 40 <.1 1.0 <1 370
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
OCTOBER NOVEMBER DECEMBER JANUARY
1 14.8 13.1 13.9 9.5 8.4 9.0 1.8 .9 1.5 1.0 .6 .8
2 14.1 12.2 13.1 8.6 6.5 7.5 2.1 1.1 1.8 .8 .6 .7
3 12.2 11.5 11.8 6.5 5.2 5.8 2.4 1.6 1.9 .9 .7 .8
4 11.7 10.7 11.1 5.2 3.8 4.4 2.3 1.5 1.8 .8 .4 .6
5 11.9 10.8 11.4 3.8 2.1 2.8 1.7 .7 1.2 .6 .3 .5
6 11.8 10.9 11.4 2.1 1.3 1.7 1.4 .6 1.0 .8 .3 .6
7 12.8 10.1 11.4 1.3 .7 .9 1.5 .9 1.2 .8 .6 .7
8 14.2 11.1 12.4 1.3 .8 1.0 1.6 .9 1.4 .7 .4 .6
9 14.2 11.9 13.0 1.3 .7 1.1 1.6 1.1 1.4 .7 .4 .6
10 14.2 12.3 12.8 .7 .1 .2 1.6 1.3 1.5 .6 .3 .5
11 12.5 10.4 12.0 .6 .1 .3 1.7 1.1 1.4 .6 .3 .5
12 10.4 8.5 9.3 1.0 .4 .7 1.7 .8 1.4 .5 .4 .5
13 9.8 7.8 8.8 1.7 .7 1.2 1.8 .8 1.5 .5 .3 .4
14 8.8 7.9 8.3 2.2 1.6 1.8 1.8 1.2 1.5 .4 .3 .3
15 8.4 7.6 8.0 2.3 2.0 2.2 1.7 1.1 1.4 .4 .3 .3
16 9.0 8.4 8.8 2.4 1.8 2.2 1.7 .8 1.3 .5 .4 .4
17 8.8 6.9 7.8 2.2 1.4 1.8 1.3 .7 1.1 .5 .4 .4
18 7.8 6.2 7.0 1.5 .6 1.1 1.1 .2 .5 .5 .4 .5
19 7.7 6.3 7.0 1.5 .3 .9 .4 .2 .3 .5 .4 .4
20 7.9 6.3 7.1 1.8 1.0 1.5 .9 .3 .6 .4 .4 .4
21 8.6 6.6 7.7 1.7 1.3 1.5 1.1 .7 .8 .4 .3 .4
22 9.4 7.5 8.5 1.7 1.3 1.5 1.2 .9 1.1 .4 .3 .4
23 10.4 8.5 9.5 1.9 1.1 1.6 1.3 1.0 1.2 .4 .4 .4
24 11.5 9.5 10.4 2.1 1.4 1.7 1.5 1.2 1.3 .4 .4 .4
25 11.1 10.5 10.8 2.2 1.4 1.8 1.5 1.3 1.4 .4 .3 .4
26 11.9 10.8 11.3 2.1 1.5 1.9 1.5 1.3 1.4 .4 .3 .3
27 12.6 10.9 11.7 2.1 1.0 1.6 1.6 1.3 1.4 .3 .3 .3
28 12.0 10.8 11.6 1.7 .9 1.4 1.7 1.4 1.6 .4 .3 .3
29 11.8 10.6 11.3 1.9 1.2 1.6 1.6 1.3 1.5 .4 .3 .3
30 10.6 9.0 9.7 1.8 1.1 1.4 1.5 1.1 1.2 .4 .3 .3
31 9.6 8.7 9.1 --- --- --- 1.1 .8 .9 .4 .3 .4
MONTH 14.8 6.2 10.3 9.5 .1 2.1 2.4 .2 1.3 1.0 .3 .5
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
FEBRUARY MARCH APRIL MAY
1 .4 .3 .4 .8 .3 .5 8.6 5.3 7.0 --- --- ---
2 .4 .4 .4 .8 .2 .4 5.3 3.6 4.4 --- --- ---
3 .5 .4 .4 .7 .3 .4 3.6 2.6 3.0 --- --- ---
4 .4 .4 .4 .4 .2 .3 4.3 2.1 3.2 --- --- ---
5 .4 .4 .4 .3 .2 .2 4.5 3.7 4.1 --- --- ---
6 .4 .4 .4 .5 .2 .3 6.4 3.8 5.1 --- --- ---
7 .4 .3 .4 .4 .2 .3 8.9 6.1 7.5 12.2 11.6 12.0
8 .5 .4 .4 .3 .2 .2 9.3 8.1 8.7 12.4 10.6 11.5
9 .6 .4 .5 .3 .2 .2 10.2 8.3 9.3 11.7 10.4 11.1
10 .8 .5 .7 .3 .2 .2 9.5 7.9 8.6 11.4 10.1 10.7
11 1.1 .7 .9 .4 .2 .3 9.0 7.4 8.2 --- --- ---
12 --- --- --- .4 .2 .3 9.8 7.8 8.8 --- --- ---
13 1.5 1.1 1.3 .4 .2 .3 11.6 9.2 10.3 13.6 13.1 13.4
14 1.8 1.3 1.5 .6 .1 .3 11.4 9.7 10.6 13.3 12.6 12.9
15 1.7 1.4 1.6 .8 .2 .4 9.7 7.1 8.4 14.6 12.5 13.2
16 1.9 1.4 1.7 .7 .2 .4 7.1 4.5 5.6 15.6 13.7 14.6
17 1.7 1.4 1.6 .6 .2 .4 5.6 3.5 4.5 16.1 15.3 15.7
18 1.5 1.2 1.4 .8 .1 .4 7.0 4.5 5.6 16.7 15.5 16.1
19 1.3 1.1 1.3 .8 .2 .5 8.9 6.3 7.4 17.2 16.3 16.7
20 1.2 1.0 1.1 .8 .2 .4 11.2 8.0 9.3 18.1 17.2 17.6
21 1.0 .9 1.0 .8 .0 .3 --- --- --- 18.9 17.5 18.2
22 1.1 .9 1.0 .7 .0 .2 --- --- --- 19.4 18.2 18.8
23 1.2 .9 1.1 .7 .0 .2 11.3 9.1 10.0 18.6 17.2 17.6
24 1.5 1.0 1.3 .6 .0 .2 --- --- --- 17.5 16.8 17.1
25 2.0 1.3 1.6 .8 .0 .3 --- --- --- 18.2 16.1 17.0
26 2.2 1.6 1.9 2.9 .0 1.1 13.0 12.7 12.9 18.8 16.8 17.7
27 1.8 .6 1.0 2.8 .5 1.3 13.1 12.4 12.7 20.3 18.2 19.1
28 .9 .4 .6 5.4 2.7 4.2 14.5 12.5 13.4 20.7 18.6 19.6
29 --- --- --- 6.3 4.2 5.3 15.4 13.2 14.2 22.0 20.1 20.9
30 --- --- --- 7.8 5.6 6.6 --- --- --- 21.7 19.5 20.9
31 --- --- --- 9.5 7.4 8.4 --- --- --- 19.5 17.8 18.6
MONTH --- --- --- 9.5 .0 1.1 --- --- --- --- --- ---
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
JUNE JULY AUGUST SEPTEMBER
1 19.8 17.6 18.3 22.0 19.7 20.6 26.8 23.6 25.0 23.2 20.0 21.6
2 20.5 17.4 18.7 22.7 20.3 21.2 25.2 23.2 24.3 20.0 17.5 18.9
3 19.9 18.7 19.3 25.6 21.9 23.3 25.4 23.6 24.4 17.5 16.5 16.9
4 22.3 19.4 20.6 25.4 23.8 24.6 25.5 23.2 24.3 16.5 15.9 16.3
5 24.8 21.0 22.8 25.8 24.5 25.1 26.8 23.5 25.0 17.2 15.7 16.5
6 23.1 21.7 22.4 26.4 23.5 24.9 26.2 24.5 25.4 18.7 16.4 17.7
7 24.3 21.1 22.4 26.0 23.8 25.0 25.3 23.0 24.2 19.8 18.3 19.1
8 24.3 22.0 23.2 25.4 24.1 24.8 24.5 22.2 23.0 18.3 16.0 17.3
9 24.3 23.0 23.6 24.6 21.8 23.0 25.1 22.6 23.9 16.5 15.2 15.9
10 23.2 22.2 22.8 25.3 20.8 22.6 26.7 23.0 24.7 17.5 14.9 16.1
11 23.4 21.5 22.3 24.7 21.9 22.8 26.5 23.5 25.0 15.9 14.8 15.4
12 23.9 21.5 22.8 25.4 22.6 23.7 25.4 20.4 23.7 14.8 13.4 14.3
13 23.0 21.4 22.2 28.0 24.0 25.5 22.2 19.4 20.6 14.1 13.1 13.6
14 22.7 20.4 21.2 27.2 25.2 26.2 21.9 19.6 20.9 13.9 12.9 13.4
15 21.4 19.6 20.3 26.5 25.2 25.6 23.7 20.7 22.1 16.5 13.2 14.7
16 20.8 18.7 19.8 25.3 23.9 24.7 23.1 21.2 22.2 16.2 13.6 14.7
17 20.7 18.8 19.8 24.4 22.8 23.6 25.2 21.3 22.9 17.3 15.2 16.2
18 19.9 18.0 18.8 22.8 22.0 22.2 23.2 21.9 22.5 17.7 16.4 17.0
19 18.5 17.8 18.1 22.5 21.7 22.1 24.9 21.3 22.7 16.9 15.3 16.1
20 19.5 17.9 18.7 25.8 21.9 23.0 23.0 21.9 22.5 15.8 14.6 15.1
21 21.2 19.2 20.1 27.7 23.7 24.9 24.2 22.1 23.2 15.6 13.9 14.7
22 22.3 20.7 21.5 28.2 24.9 26.2 25.5 22.8 24.0 16.4 14.2 15.2
23 23.5 21.3 22.5 29.6 25.9 27.2 23.5 22.1 22.8 16.7 15.2 15.9
24 26.5 22.1 24.0 29.6 26.9 27.8 25.1 21.7 23.3 17.1 15.4 16.2
25 25.2 23.1 24.2 28.6 27.4 28.0 24.4 22.3 23.5 17.3 16.0 16.7
26 24.3 23.2 24.0 29.0 26.0 27.3 26.4 23.1 24.7 16.3 14.6 15.5
27 23.2 21.8 22.5 27.2 25.5 26.3 28.3 24.1 25.7 15.2 13.6 14.5
28 21.8 20.7 21.2 28.2 25.4 26.5 25.3 23.0 24.3 14.5 13.2 13.8
29 20.9 20.0 20.4 30.1 26.6 28.0 23.0 20.4 21.6 13.3 12.3 12.9
30 21.3 18.9 20.0 29.5 27.0 28.0 21.5 20.1 20.7 12.8 11.4 12.1
31 --- --- --- 27.0 24.7 25.7 23.6 20.6 22.3 --- --- ---
MONTH 26.5 17.4 21.3 30.1 19.7 24.9 28.3 19.4 23.4 23.2 11.4 15.8
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG.C), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
OCTOBER NOVEMBER DECEMBER JANUARY
1 890 880 880 1300 1290 1300 1350 1310 1330 1900 1890 1900
2 880 870 870 1310 1290 1300 1340 1310 1330 1900 1850 1870
3 880 860 870 1320 1310 1310 1400 1340 1360 1860 1820 1840
4 870 870 870 1330 1320 1320 1400 1370 1380 1840 1770 1830
5 870 860 860 1340 1330 1340 1410 1370 1400 1840 1790 1830
6 860 860 860 1360 1340 1350 1430 1400 1410 1820 1780 1800
7 870 860 860 1360 1350 1360 1440 1420 1430 1790 1770 1780
8 870 860 860 1380 1360 1380 1430 1410 1420 1800 1770 1780
9 860 860 860 1400 1380 1390 1410 1390 1400 1780 1760 1770
10 890 860 870 1410 1400 1400 1390 1370 1380 1780 1760 1770
11 900 880 890 1410 1390 1400 1390 1360 1380 1790 1770 1780
12 900 880 890 1390 1380 1390 1390 1360 1370 1790 1770 1780
13 900 890 890 1410 1390 1400 1360 1340 1350 1810 1780 1800
14 910 890 900 1400 1390 1390 1340 1320 1330 1820 1790 1810
15 920 900 910 1420 1390 1400 1320 1260 1310 1820 1800 1810
16 920 890 910 1400 1390 1390 1310 1290 1300 1800 1780 1790
17 920 880 900 1390 1370 1380 1310 1300 1300 1780 1750 1770
18 930 900 910 1370 1340 1360 1340 1290 1320 1750 1720 1730
19 960 930 940 1340 1310 1330 1390 1350 1370 1720 1680 1710
20 970 950 960 1340 1310 1320 1420 1380 1400 1680 1660 1670
21 980 960 960 1340 1310 1320 1470 1420 1440 1660 1640 1650
22 1050 980 1010 1410 1310 1340 1530 1470 1510 1640 1600 1620
23 1090 1050 1070 1390 1340 1360 1610 1530 1580 1600 1570 1580
24 1100 1080 1090 1400 1390 1400 1670 1610 1640 1570 1550 1560
25 1110 1100 1100 1390 1350 1370 1740 1670 1710 1550 1540 1550
26 1140 1110 1120 1370 1340 1360 1800 1740 1770 1540 1530 1540
27 1200 1140 1170 1380 1360 1370 1830 1770 1810 1530 1490 1510
28 1220 1180 1200 1370 1360 1360 1850 1800 1830 1490 1450 1470
29 1230 1210 1220 1390 1340 1360 1880 1830 1860 1450 1420 1440
30 1290 1230 1260 1360 1340 1350 1900 1860 1890 1430 1400 1420
31 1290 1280 1290 --- --- --- 1910 1880 1900 1400 1390 1400
MONTH 1290 860 980 1420 1290 1360 1910 1260 1490 1900 1390 1700
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
FEBRUARY MARCH APRIL MAY
1 1390 1380 1390 930 810 850 710 660 680 --- --- ---
2 1390 1380 1390 870 790 840 770 700 730 --- --- ---
3 1390 1350 1380 840 800 830 810 750 780 --- --- ---
4 1360 1340 1350 930 780 870 820 800 810 --- --- ---
5 1350 1330 1340 950 900 940 850 820 830 --- --- ---
6 1340 1320 1320 940 880 910 860 810 830 --- --- ---
7 1320 1310 1320 900 820 860 810 780 800 760 740 750
8 1340 1300 1320 820 750 780 840 800 820 800 760 780
9 1340 1290 1330 760 730 750 840 820 820 830 800 810
10 1290 1280 1280 730 710 720 850 820 830 820 780 800
11 1280 1250 1270 740 720 730 850 830 840 --- --- ---
12 --- --- --- 740 720 730 860 830 840 --- --- ---
13 --- --- --- 740 700 720 860 840 850 900 880 900
14 1230 1190 1210 720 700 710 890 850 870 890 830 870
15 1210 1180 1200 720 680 710 890 880 880 850 820 840
16 1200 1170 1190 740 690 720 900 880 890 830 780 800
17 1200 1190 1200 760 690 740 910 900 900 790 770 780
18 --- --- --- 760 720 760 930 910 920 790 780 780
19 --- --- --- 740 690 730 920 910 910 800 790 800
20 --- --- --- 720 610 680 910 840 860 800 800 800
21 --- --- --- 770 590 700 850 840 850 800 790 800
22 --- --- --- 760 680 720 850 830 840 810 800 800
23 --- --- --- 690 530 600 830 810 820 810 800 810
24 --- --- --- 540 480 500 810 800 810 810 800 810
25 --- --- --- 510 480 490 --- --- --- 810 810 810
26 --- --- --- 520 510 520 770 770 770 810 800 810
27 --- --- --- 540 500 510 770 760 770 810 800 810
28 940 860 920 580 540 560 770 750 760 800 790 800
29 --- --- --- 600 580 580 750 750 750 800 790 790
30 --- --- --- 620 600 610 750 740 740 790 770 780
31 --- --- --- 660 620 640 --- --- --- 780 760 770
MONTH --- --- --- 950 480 710 --- --- --- --- --- ---
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
JUNE JULY AUGUST SEPTEMBER
1 760 750 760 740 730 730 740 730 740 900 880 890
2 760 750 750 740 730 740 750 740 740 920 890 900
3 760 740 750 750 740 750 750 740 740 890 850 860
4 740 730 740 750 740 750 750 740 750 870 840 850
5 730 710 720 750 740 750 750 740 740 850 840 850
6 710 690 700 750 750 750 760 740 750 860 840 850
7 700 690 690 750 750 750 760 750 750 870 860 860
8 700 700 700 750 730 740 750 750 750 870 860 860
9 700 700 700 740 720 730 780 750 760 870 850 860
10 710 700 700 730 720 730 850 760 820 880 870 870
11 700 690 700 740 720 730 830 810 820 880 870 880
12 710 690 700 760 740 750 950 780 880 880 880 880
13 700 700 700 770 760 760 790 780 780 900 880 880
14 700 690 690 780 760 770 830 790 820 900 890 890
15 700 690 700 790 770 780 860 830 840 910 810 880
16 710 700 710 800 780 790 860 850 860 890 870 880
17 720 710 720 790 760 780 880 860 870 870 750 850
18 730 720 730 770 750 760 880 860 870 --- --- ---
19 720 710 720 760 740 760 870 850 860 --- --- ---
20 730 710 720 760 740 760 880 860 870 --- --- ---
21 740 730 740 760 740 760 930 880 900 --- --- ---
22 750 730 740 760 740 750 960 930 950 --- --- ---
23 740 720 730 760 720 740 980 960 960 --- --- ---
24 740 720 730 740 710 730 990 950 970 --- --- ---
25 730 720 720 740 720 730 960 940 950 --- --- ---
26 740 720 730 740 720 730 970 900 950 --- --- ---
27 740 720 730 730 710 730 990 910 970 --- --- ---
28 730 720 720 730 710 720 960 910 920 --- --- ---
29 730 720 730 740 720 730 910 840 860 --- --- ---
30 730 720 720 740 720 730 890 840 880 --- --- ---
31 --- --- --- 740 720 730 890 870 880 --- --- ---
MONTH 760 690 720 800 710 750 990 730 850 --- --- ---
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