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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 65 - 66 years of record in, ft3/s   (Calculation Period 1951-10-01 -> 2018-09-30)

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 5,290 5,610 5,100 7,870 16,100 27,300 18,500 7,190 4,990 5,570 5,440 6,050
2 5,520 5,800 5,160 7,910 16,400 27,500 18,000 7,200 4,810 5,530 5,480 5,940
3 6,160 5,590 5,160 7,720 16,600 28,200 17,400 7,090 4,780 5,570 5,550 6,070
4 6,030 5,490 5,100 7,990 17,000 28,800 16,600 6,910 4,960 5,190 5,310 6,230
5 6,070 5,540 5,090 8,040 17,400 28,800 16,300 6,650 5,100 5,200 5,490 6,240
6 6,160 5,550 4,980 8,640 18,100 28,900 15,900 6,460 5,170 5,290 5,390 6,140
7 6,250 5,720 4,990 8,890 19,000 28,600 15,400 6,550 5,230 5,250 5,510 6,020
8 6,310 5,930 5,160 9,310 19,400 28,400 14,800 6,360 5,370 5,540 5,860 6,130
9 6,380 6,140 5,680 9,580 19,500 29,000 14,100 6,260 5,480 5,330 5,630 6,110
10 6,220 6,020 5,760 9,840 20,000 27,400 13,600 6,030 5,540 5,530 5,570 6,360
11 6,250 5,920 5,840 10,100 20,300 26,300 13,200 6,240 5,490 5,490 5,560 6,360
12 6,300 5,670 5,670 10,500 20,600 25,700 12,700 6,020 5,300 5,820 5,990 6,210
13 6,200 5,590 5,980 10,900 21,400 25,500 12,400 5,860 5,470 5,860 5,780 6,260
14 5,650 5,650 5,660 11,100 22,000 25,700 12,100 5,830 5,240 5,700 5,630 6,240
15 5,710 5,730 5,720 11,400 22,300 25,100 11,900 5,790 5,210 5,140 5,490 6,070
16 5,860 5,640 6,140 11,600 23,000 24,800 11,500 5,880 5,330 5,220 5,740 6,090
17 5,970 5,460 6,140 11,800 24,100 25,300 11,100 5,760 5,370 5,320 5,870 6,290
18 5,880 5,370 5,990 12,100 25,000 25,000 10,800 5,920 5,310 5,300 5,700 6,520
19 5,820 5,390 6,080 12,600 25,500 24,700 10,300 5,730 5,350 5,150 5,410 6,270
20 5,940 5,520 6,130 12,800 26,000 24,600 9,900 5,610 5,410 5,330 5,480 6,270
21 5,820 5,450 6,210 13,200 26,500 23,900 9,670 5,850 5,590 5,300 5,770 6,290
22 5,940 5,660 6,370 13,700 26,900 23,300 9,200 5,740 5,740 5,410 5,700 6,290
23 5,850 5,630 6,590 14,200 27,200 23,000 8,920 5,730 5,690 5,460 5,710 6,030
24 6,170 5,330 6,760 14,900 27,300 22,300 8,690 5,710 5,530 5,310 5,660 5,500
25 6,070 5,230 6,610 15,500 27,400 21,500 8,550 5,650 5,430 5,330 5,500 5,050
26 5,940 5,240 6,870 15,500 27,800 21,100 8,260 5,510 5,190 5,590 5,520 5,190
27 5,770 5,390 6,980 15,700 27,800 20,300 8,020 5,510 5,290 5,620 5,410 5,380
28 5,640 5,140 6,890 15,700 27,300 19,900 7,970 5,470 5,260 5,470 5,210 5,580
29 5,550 5,890 7,180 15,800 27,100 19,100 7,500 5,490 5,380 5,410 5,290 5,650
30 5,540   7,250 15,800 27,500 18,900 7,220 5,440 5,530 5,300 5,790 5,660
31 5,440   7,560   27,600   7,030 5,230   5,330   5,540