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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 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 water year of record in, ft3/s   (Calculation Period 1939-10-01 -> 2020-09-30)

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 5,740 11,600 6,650 1,900 974 942 1,180 1,130
2 714 731 698 1,550 5,840 11,500 6,380 1,850 963 952 1,160 1,080
3 701 715 698 1,620 6,130 11,800 6,190 1,790 955 940 1,160 1,130
4 689 707 701 1,710 6,460 12,100 6,020 1,720 933 913 1,180 1,150
5 686 700 706 1,780 6,720 12,100 5,770 1,650 924 915 1,220 1,110
6 695 691 718 1,940 7,100 12,100 5,560 1,610 925 901 1,200 1,060
7 698 688 729 2,070 7,470 11,700 5,330 1,560 919 885 1,300 1,010
8 711 706 738 2,130 7,660 11,700 5,120 1,520 901 867 1,350 962
9 710 740 743 2,210 7,920 11,800 4,870 1,470 897 875 1,260 944
10 707 789 765 2,350 8,220 10,900 4,660 1,430 890 924 1,270 949
11 701 779 776 2,400 8,480 10,500 4,490 1,390 876 962 1,420 955
12 691 763 800 2,480 8,760 10,400 4,280 1,350 869 1,020 1,560 972
13 699 749 852 2,620 9,140 10,400 4,130 1,310 884 1,000 1,400 957
14 706 736 859 2,810 9,270 10,300 4,050 1,270 859 1,000 1,330 930
15 722 728 911 2,980 9,440 10,100 3,860 1,250 863 1,040 1,280 909
16 773 725 1,100 3,060 9,830 10,100 3,650 1,240 862 1,090 1,240 886
17 819 721 1,090 3,180 10,400 10,100 3,470 1,230 872 1,110 1,200 877
18 801 712 1,060 3,410 10,700 9,860 3,320 1,200 912 1,080 1,160 857
19 772 711 1,100 3,620 10,900 9,680 3,190 1,160 941 1,090 1,120 835
20 769 716 1,090 3,930 11,000 9,720 3,070 1,140 916 1,100 1,100 823
21 750 733 1,090 4,270 11,100 9,110 2,930 1,120 925 1,120 1,110 832
22 742 748 1,080 4,460 11,400 8,930 2,780 1,110 926 1,110 1,100 829
23 729 741 1,090 4,690 11,700 8,690 2,680 1,110 917 1,100 1,130 845
24 718 725 1,120 4,990 11,800 8,360 2,570 1,100 906 1,080 1,270 846
25 711 731 1,150 5,220 11,800 8,070 2,470 1,100 907 1,100 1,320 842
26 698 741 1,210 5,160 12,100 7,770 2,380 1,110 930 1,150 1,260 840
27 684 727 1,230 5,150 12,000 7,520 2,300 1,080 919 1,140 1,190 876
28 676 712 1,260 5,250 11,800 7,210 2,210 1,060 902 1,130 1,160 847
29 668 640 1,310 5,450 11,700 6,970 2,130 1,040 888 1,130 1,140 801
30 666   1,350 5,620 11,800 6,910 2,060 1,020 892 1,120 1,150 774
31 697   1,460   11,800   1,980 996   1,130   751