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USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 15875000 COLVILLE R AT UMIAT AK


North Slope Borough, Alaska
Hydrologic Unit Code 19060303
Latitude  69°21'37.8", Longitude 152°07'21.7" NAD83
Drainage area 13,860  square miles
Gage datum 267.2 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 2001-10-01 -> 2022-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 40 13 5.8 3.2 14 85,300 22,200 16,600 22,100 6,300 657 150
2 39 13 5.6 3.2 35 78,900 22,200 20,400 22,800 6,190 623 143
3 36 12 5.4 3.2 109 74,000 20,700 20,300 23,100 6,890 592 138
4 35 12 5.3 3.2 193 72,700 22,500 21,100 22,600 9,510 558 128
5 34 12 5.2 3.2 135 75,500 19,500 23,800 20,300 8,620 532 124
6 33 11 5.1 3.2 119 74,700 16,700 22,100 19,100 6,700 501 118
7 32 11 4.9 3.1 109 74,200 14,800 19,600 19,000 5,760 484 109
8 30 11 4.8 3.1 99 67,500 13,500 19,100 18,900 5,000 459 105
9 29 11 4.6 3.1 94 60,300 12,800 18,200 18,200 4,360 434 101
10 28 10 4.5 3.1 99 56,600 13,400 16,800 17,800 3,830 409 96
11 27 9.7 4.4 3.1 90 54,400 15,500 16,000 17,300 3,440 392 92
12 26 9.4 4.4 3.1 91 49,500 16,000 15,800 15,800 3,100 367 87
13 25 9.3 4.3 3.1 95 42,600 14,900 17,200 15,100 2,840 352 84
14 24 9.2 4.2 3.1 1,920 37,000 13,800 21,600 14,200 2,590 335 80
15 24 8.8 4 3.1 4,240 32,900 13,400 25,500 14,300 2,210 317 77
16 23 8.7 4 3.1 3,680 30,900 14,500 23,700 14,400 1,960 302 74
17 22 8.2 3.9 3.1 6,520 28,900 13,400 21,400 14,100 1,750 290 71
18 21 8 3.8 3.1 12,700 26,700 13,400 23,200 13,300 1,570 268 68
19 20 7.8 3.8 3.1 17,900 25,000 14,500 25,700 12,700 1,430 260 66
20 19 7.7 3.7 3.1 21,400 24,600 16,700 23,200 12,200 1,340 247 63
21 19 7.4 3.6 3.1 26,700 23,800 18,900 20,700 11,700 1,250 239 62
22 18 7.2 3.5 3.1 32,800 23,600 18,300 20,000 11,200 1,170 222 58
23 18 6.9 3.5 3.2 40,700 23,100 17,800 20,700 11,200 1,090 215 56
24 17 6.7 3.5 3.2 52,000 24,600 18,700 21,500 10,600 1,030 202 55
25 17 6.4 3.5 3.2 57,000 22,400 18,000 21,600 9,750 962 195 52
26 16 6.3 3.5 3.3 66,500 21,100 16,400 21,900 9,070 916 188 51
27 16 6.2 3.4 3.3 68,000 22,300 16,000 21,100 8,270 868 179 48
28 15 6 3.4 3.4 66,600 23,200 15,700 22,300 7,680 820 171 46
29 14 4 3.4 3.6 72,400 22,100 14,800 21,800 7,050 773 164 45
30 14   3.4 6.2 85,600 20,200 14,100 20,600 6,640 733 157 43
31 14   3.3   89,600   14,200 20,900   689   41