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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated September 21, 2018 - USGS water-resources monitoring will continue with partner funds and USGS Cooperative Matching Funds at the following site: USGS water-resources monitoring will be discontinued at the following sites effective October 1, 2018:
  • 06024540 Big Hole R bel Mudd Cr nr Wisdom, MT (seasonal water temperature)
  • 06308400 Pumpkin Cr nr Miles City, MT (annual streamflow, water temperature, and sampling)
USGS monitoring activities at these sites were funded by partner agencies. Lack of partner funding for these sites resulted in discontinuation of all streamgaging activities.

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 12358500 M F Flathead River near West Glacier MT


Flathead County, Montana
Hydrologic Unit Code 17010207
Latitude  48°29'43.86", Longitude 114°00'36.75" NAD83
Drainage area 1,125  square miles
Gage datum 3,128.72 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 79 - 80 years of record in, ft3/s   (Calculation Period 1939-10-01 -> 2019-09-30)

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
1 729 730 706 1,530 5,760 11,600 6,690 1,910 979 944 1,180 1,130
2 714 731 698 1,560 5,860 11,500 6,420 1,860 968 955 1,160 1,080
3 701 715 698 1,620 6,160 11,800 6,220 1,790 960 940 1,160 1,130
4 689 707 701 1,710 6,500 12,100 6,060 1,730 938 913 1,180 1,150
5 686 700 706 1,790 6,750 12,100 5,810 1,660 928 915 1,220 1,110
6 695 691 718 1,940 7,140 12,100 5,600 1,620 929 901 1,200 1,060
7 698 688 729 2,070 7,520 11,700 5,360 1,570 923 885 1,300 1,010
8 711 706 738 2,130 7,700 11,700 5,150 1,520 905 867 1,350 962
9 710 740 743 2,210 7,960 11,900 4,900 1,480 899 875 1,260 944
10 707 789 765 2,340 8,250 10,900 4,690 1,440 889 924 1,270 949
11 701 779 776 2,400 8,510 10,600 4,520 1,400 875 962 1,420 955
12 691 763 800 2,480 8,760 10,400 4,300 1,350 870 1,020 1,560 972
13 699 749 852 2,620 9,100 10,400 4,150 1,310 886 1,000 1,400 957
14 706 736 859 2,820 9,210 10,300 4,070 1,280 861 1,000 1,330 930
15 722 728 911 2,990 9,390 10,200 3,880 1,250 865 1,040 1,280 909
16 773 725 1,100 3,070 9,770 10,200 3,680 1,250 865 1,090 1,240 886
17 819 721 1,090 3,190 10,300 10,100 3,490 1,230 875 1,110 1,200 877
18 801 712 1,060 3,430 10,700 9,910 3,340 1,200 915 1,080 1,160 857
19 772 711 1,100 3,630 10,900 9,730 3,210 1,160 945 1,090 1,120 835
20 769 716 1,100 3,900 11,100 9,770 3,090 1,140 920 1,100 1,100 823
21 750 733 1,100 4,230 11,200 9,160 2,950 1,130 929 1,120 1,110 832
22 742 748 1,080 4,430 11,400 8,990 2,800 1,110 930 1,110 1,100 829
23 729 741 1,100 4,660 11,800 8,740 2,700 1,110 921 1,100 1,130 845
24 718 725 1,120 4,950 11,800 8,400 2,580 1,110 908 1,080 1,270 846
25 711 731 1,150 5,170 11,800 8,110 2,490 1,110 909 1,100 1,320 842
26 698 741 1,210 5,110 12,200 7,810 2,390 1,110 932 1,150 1,260 840
27 684 727 1,230 5,120 12,100 7,560 2,310 1,090 919 1,140 1,190 876
28 676 712 1,260 5,240 11,800 7,250 2,220 1,060 902 1,130 1,160 847
29 668 640 1,310 5,450 11,700 7,010 2,140 1,040 889 1,130 1,140 801
30 666   1,360 5,630 11,800 6,950 2,070 1,020 893 1,120 1,150 774
31 697   1,460   11,800   1,990 1,000   1,130   751