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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 12363500 Flathead River near Kalispell, MT


Flathead County, Montana
Hydrologic Unit Code 17010208
Latitude  48°13'16.09", Longitude 114°14'30.79" NAD83
Drainage area 4,500  square miles
Gage datum 2,911 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 2020-10-01 -> 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 4,050 4,490 4,400 6,850 14,600 18,800 16,800 5,830 4,640 3,600 4,840 4,960
2 4,040 4,470 4,660 6,710 16,800 18,500 16,300 5,680 4,440 3,590 4,580 6,790
3 4,100 4,400 5,230 6,640 19,000 19,000 16,200 5,460 4,300 3,650 4,360 7,420
4 4,170 4,280 5,820 6,900 20,500 21,500 16,300 5,330 4,200 3,720 4,250 6,680
5 4,090 4,060 5,780 7,230 22,200 22,400 15,400 5,200 4,130 3,720 4,230 6,160
6 4,200 3,960 5,500 7,200 24,900 23,600 14,200 5,120 4,060 3,600 4,510 5,740
7 4,400 3,900 5,290 7,070 26,400 23,900 13,300 5,070 3,970 3,570 4,450 6,370
8 4,460 3,900 5,150 6,910 24,400 23,700 12,900 5,060 3,960 3,600 4,380 6,710
9 4,480 3,860 5,130 6,970 21,800 23,100 12,300 5,080 3,880 3,620 4,230 6,330
10 4,490 3,810 5,330 7,140 19,700 23,800 12,000 5,010 3,830 3,610 4,080 5,970
11 4,290 3,820 5,480 7,330 19,100 26,000 11,600 4,780 3,870 3,660 4,010 5,650
12 4,270 3,810 5,470 7,540 20,100 27,400 11,000 4,730 3,870 3,660 3,950 5,440
13 4,310 3,790 5,430 7,610 22,100 27,000 10,500 4,700 3,870 3,680 4,090 5,200
14 4,280 3,810 5,320 7,960 23,400 27,100 10,300 4,660 3,880 3,670 4,570 5,020
15 4,260 3,790 5,250 8,610 23,500 27,000 9,940 4,630 3,870 3,660 5,510 4,820
16 4,250 3,790 5,370 9,350 24,000 25,900 9,640 4,610 3,870 3,660 7,600 4,670
17 4,200 3,760 5,340 9,630 26,400 24,200 9,310 4,620 3,860 3,670 6,690 4,480
18 4,360 3,750 5,310 9,130 27,000 24,700 8,980 4,620 3,930 3,670 5,850 4,250
19 4,650 3,840 5,350 8,260 25,000 24,600 8,750 4,510 3,950 3,670 5,420 4,260
20 4,640 3,830 5,420 7,760 23,300 23,600 8,310 4,490 3,880 3,660 5,140 4,260
21 4,670 3,800 5,540 7,660 22,000 23,800 7,940 4,490 3,870 3,660 4,910 4,120
22 4,640 3,760 5,620 7,710 20,900 23,300 7,670 4,460 3,860 3,710 4,710 4,160
23 4,620 3,860 5,570 7,570 20,100 23,100 7,270 4,400 3,840 3,740 4,570 4,290
24 4,630 4,010 5,770 7,720 19,000 22,500 6,720 4,380 3,830 3,690 4,470 4,370
25 4,610 4,070 6,030 8,540 18,500 20,600 6,220 4,350 3,610 3,710 4,370 4,280
26 4,630 4,160 6,070 9,450 18,600 18,900 6,220 4,320 3,590 3,720 4,320 4,130
27 4,590 4,210 6,090 10,000 18,800 18,000 6,190 4,300 3,580 3,720 4,290 4,110
28 4,580 4,250 6,250 10,900 20,500 17,800 6,130 4,310 3,570 3,740 4,250 4,060
29 4,500 3,570 6,700 11,900 21,500 18,100 6,070 4,310 3,590 3,900 4,430 4,110
30 4,460   6,960 12,900 21,500 17,400 6,050 4,290 3,600 5,660 4,750 4,100
31 4,560   6,920   20,000   5,970 4,590   5,400   4,120