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USGS Surface-Water Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 -> 2024-09-30)

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 5,150 5,520 5,140 7,790 16,400 27,500 18,300 7,040 4,930 5,420 5,340 5,910
2 5,360 5,700 5,220 7,810 16,800 27,700 17,800 7,040 4,750 5,370 5,360 5,900
3 5,940 5,530 5,240 7,630 17,100 28,400 17,100 6,930 4,710 5,420 5,430 6,020
4 5,820 5,430 5,210 7,890 17,500 29,000 16,400 6,760 4,880 5,060 5,210 6,120
5 5,860 5,470 5,190 7,950 18,000 29,000 16,100 6,520 4,990 5,080 5,410 6,100
6 5,940 5,490 5,070 8,500 18,800 28,900 15,600 6,330 5,050 5,150 5,410 6,000
7 6,040 5,640 5,070 8,730 19,700 28,500 15,100 6,400 5,100 5,110 5,530 5,930
8 6,090 5,840 5,210 9,130 20,000 28,200 14,500 6,230 5,230 5,380 5,810 6,020
9 6,150 6,030 5,710 9,400 20,100 28,600 13,900 6,140 5,330 5,200 5,570 5,990
10 6,010 5,930 5,810 9,640 20,500 27,200 13,300 5,920 5,390 5,390 5,480 6,190
11 6,040 5,850 5,890 9,910 20,700 26,100 12,900 6,110 5,340 5,350 5,450 6,180
12 6,130 5,650 5,740 10,300 20,900 25,600 12,400 5,900 5,160 5,650 5,830 6,040
13 6,060 5,600 6,020 10,700 21,600 25,400 12,200 5,760 5,320 5,680 5,640 6,070
14 5,590 5,660 5,710 10,900 22,300 25,800 11,900 5,730 5,110 5,540 5,520 6,050
15 5,640 5,730 5,770 11,200 22,600 25,100 11,600 5,690 5,080 5,030 5,450 5,880
16 5,780 5,650 6,160 11,300 23,400 24,800 11,300 5,760 5,190 5,090 5,750 5,890
17 5,880 5,480 6,140 11,600 24,600 25,100 10,900 5,650 5,230 5,180 5,820 6,060
18 5,790 5,370 6,010 11,800 25,400 24,800 10,500 5,800 5,180 5,170 5,630 6,260
19 5,730 5,370 6,090 12,300 25,800 24,500 10,100 5,620 5,210 5,030 5,360 6,040
20 5,830 5,480 6,140 12,600 26,200 24,400 9,710 5,500 5,260 5,190 5,400 6,030
21 5,720 5,420 6,210 13,000 26,600 23,700 9,470 5,730 5,430 5,170 5,650 6,050
22 5,810 5,620 6,350 13,500 27,000 23,100 9,030 5,620 5,570 5,270 5,570 6,060
23 5,740 5,610 6,570 14,000 27,100 22,800 8,750 5,610 5,520 5,310 5,570 5,830
24 6,040 5,340 6,740 14,700 27,100 22,100 8,500 5,590 5,370 5,170 5,530 5,350
25 5,970 5,250 6,620 15,400 27,200 21,400 8,340 5,530 5,290 5,190 5,370 4,940
26 5,860 5,270 6,870 15,400 27,600 20,900 8,070 5,400 5,070 5,430 5,390 5,060
27 5,700 5,400 6,960 15,600 27,800 20,200 7,840 5,400 5,160 5,460 5,330 5,220
28 5,580 5,170 6,880 15,700 27,500 19,700 7,780 5,360 5,130 5,320 5,140 5,410
29 5,480 5,820 7,160 15,900 27,300 19,000 7,350 5,370 5,250 5,280 5,210 5,470
30 5,450   7,230 16,000 27,600 18,700 7,080 5,330 5,380 5,260 5,660 5,480
31 5,350   7,510   27,700   6,900 5,150   5,260   5,370