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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 12363000 Flathead River at Columbia Falls MT


Flathead County, Montana
Hydrologic Unit Code 17010208
Latitude  48°21'42.52", Longitude 114°11'05.82" NAD83
Drainage area 4,473  square miles
Gage datum 2,981.54 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 1951-10-01 -> 2025-09-30)

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 5,120 5,500 5,100 7,730 16,400 27,400 18,300 7,030 4,920 5,400 5,320 5,870
2 5,330 5,670 5,170 7,740 16,700 27,500 17,700 7,020 4,750 5,350 5,340 5,870
3 5,910 5,510 5,190 7,560 17,000 28,200 17,100 6,920 4,710 5,390 5,400 5,980
4 5,790 5,410 5,160 7,820 17,400 28,900 16,400 6,740 4,870 5,050 5,190 6,090
5 5,830 5,440 5,140 7,900 17,900 28,900 16,000 6,500 4,990 5,060 5,390 6,070
6 5,910 5,460 5,020 8,430 18,700 28,800 15,500 6,320 5,040 5,130 5,390 5,960
7 6,010 5,610 5,030 8,650 19,600 28,400 15,100 6,390 5,090 5,090 5,510 5,900
8 6,060 5,810 5,160 9,040 19,900 28,100 14,500 6,220 5,220 5,360 5,780 5,990
9 6,110 6,000 5,650 9,300 20,000 28,600 13,800 6,130 5,320 5,180 5,540 5,950
10 5,970 5,900 5,740 9,540 20,400 27,100 13,300 5,910 5,370 5,370 5,450 6,160
11 6,010 5,820 5,820 9,800 20,600 26,100 12,900 6,100 5,330 5,330 5,420 6,140
12 6,090 5,620 5,680 10,200 20,800 25,600 12,400 5,890 5,150 5,620 5,800 6,000
13 6,030 5,540 5,950 10,600 21,700 25,400 12,200 5,750 5,310 5,650 5,620 6,030
14 5,560 5,600 5,650 10,900 22,400 25,700 11,900 5,720 5,100 5,520 5,490 6,010
15 5,610 5,670 5,710 11,200 22,700 25,100 11,600 5,680 5,070 5,010 5,420 5,850
16 5,750 5,590 6,080 11,400 23,400 24,700 11,300 5,750 5,180 5,070 5,720 5,860
17 5,850 5,420 6,070 11,600 24,700 25,000 10,800 5,640 5,220 5,160 5,790 6,030
18 5,760 5,320 5,930 11,800 25,500 24,700 10,500 5,790 5,170 5,150 5,610 6,220
19 5,700 5,330 6,020 12,300 25,800 24,400 10,100 5,610 5,200 5,010 5,330 6,000
20 5,800 5,430 6,070 12,600 26,100 24,200 9,680 5,490 5,260 5,170 5,380 6,000
21 5,690 5,370 6,150 12,900 26,500 23,600 9,440 5,710 5,420 5,150 5,620 6,010
22 5,780 5,560 6,290 13,500 26,800 23,000 9,000 5,610 5,560 5,250 5,550 6,020
23 5,710 5,550 6,490 13,900 27,000 22,700 8,720 5,590 5,510 5,290 5,550 5,800
24 6,010 5,290 6,660 14,600 27,000 22,000 8,470 5,570 5,360 5,150 5,500 5,330
25 5,940 5,210 6,540 15,300 27,000 21,300 8,310 5,510 5,270 5,170 5,350 4,920
26 5,830 5,220 6,810 15,400 27,500 20,800 8,050 5,390 5,060 5,410 5,370 5,040
27 5,680 5,350 6,930 15,600 27,600 20,100 7,820 5,380 5,150 5,440 5,310 5,200
28 5,560 5,130 6,870 15,700 27,300 19,600 7,770 5,350 5,120 5,300 5,110 5,380
29 5,450 5,700 7,160 15,900 27,200 18,900 7,340 5,360 5,240 5,260 5,190 5,450
30 5,430   7,210 16,000 27,500 18,700 7,080 5,320 5,370 5,230 5,640 5,450
31 5,330   7,460   27,600   6,900 5,140   5,240   5,350