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USGS 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 12355500 N F Flathead River nr Columbia Falls MT


Flathead County, Montana
Hydrologic Unit Code 17010206
Latitude  48°29'44.87", Longitude 114°07'36.35" NAD83
Drainage area 1,556  square miles
Gage datum 3,145.59 feet above NGVD29
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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 1939-10-01 -> 2021-09-30)

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
1 790 730 749 1,500 6,110 12,100 6,670 2,180 1,230 1,130 1,240 1,120
2 775 744 731 1,530 6,220 12,000 6,450 2,120 1,230 1,160 1,240 1,100
3 767 751 730 1,590 6,440 12,100 6,180 2,070 1,210 1,150 1,240 1,110
4 750 750 739 1,660 6,700 12,300 5,950 2,000 1,190 1,120 1,250 1,130
5 748 750 744 1,750 6,950 12,300 5,730 1,940 1,170 1,110 1,290 1,110
6 760 749 759 1,880 7,340 12,200 5,530 1,890 1,170 1,090 1,270 1,060
7 774 755 776 2,010 7,710 12,100 5,300 1,840 1,170 1,080 1,340 1,010
8 796 762 785 2,110 7,980 11,900 5,090 1,790 1,150 1,070 1,460 966
9 794 775 791 2,220 8,240 11,800 4,910 1,760 1,140 1,070 1,370 959
10 789 774 804 2,350 8,530 11,200 4,720 1,730 1,130 1,090 1,300 994
11 770 783 813 2,470 8,820 10,700 4,540 1,700 1,120 1,100 1,350 999
12 759 773 835 2,560 9,050 10,400 4,360 1,650 1,100 1,120 1,400 1,010
13 754 766 873 2,700 9,490 10,300 4,240 1,610 1,090 1,120 1,380 998
14 765 765 880 2,880 9,710 10,300 4,150 1,580 1,080 1,120 1,410 979
15 792 762 912 3,000 9,750 10,000 4,020 1,540 1,080 1,140 1,360 961
16 814 767 1,020 3,090 10,000 9,880 3,840 1,510 1,090 1,170 1,320 932
17 835 761 1,030 3,220 10,400 9,910 3,650 1,480 1,080 1,200 1,270 917
18 812 751 1,030 3,450 10,800 9,890 3,500 1,450 1,100 1,200 1,230 898
19 809 746 1,050 3,630 11,000 9,600 3,370 1,410 1,110 1,200 1,200 880
20 793 749 1,050 3,900 11,200 9,360 3,240 1,390 1,120 1,250 1,190 880
21 787 749 1,050 4,180 11,400 9,120 3,110 1,370 1,120 1,270 1,180 885
22 785 755 1,050 4,430 11,700 8,780 2,980 1,350 1,130 1,250 1,150 878
23 782 736 1,080 4,670 11,900 8,560 2,860 1,350 1,120 1,230 1,130 877
24 783 726 1,100 5,010 11,900 8,330 2,750 1,360 1,110 1,210 1,190 864
25 778 727 1,150 5,300 12,000 8,080 2,670 1,360 1,100 1,210 1,230 862
26 759 736 1,200 5,330 12,200 7,770 2,590 1,350 1,110 1,230 1,180 859
27 740 753 1,220 5,350 12,300 7,490 2,520 1,340 1,110 1,240 1,140 885
28 731 750 1,260 5,470 12,200 7,170 2,440 1,310 1,090 1,240 1,120 895
29 724 709 1,310 5,660 12,100 6,900 2,380 1,280 1,080 1,240 1,100 863
30 727   1,370 5,880 12,100 6,800 2,320 1,260 1,080 1,220 1,120 835
31 723   1,440   12,100   2,250 1,250   1,230   812