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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 -> 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
1 729 729 704 1,520 5,830 11,700 6,710 1,900 971 937 1,170 1,120
2 714 732 695 1,540 5,910 11,600 6,430 1,850 960 947 1,160 1,080
3 701 716 695 1,610 6,190 11,800 6,220 1,790 951 933 1,160 1,130
4 689 707 698 1,690 6,500 12,100 6,050 1,720 930 906 1,180 1,150
5 686 701 703 1,770 6,740 12,100 5,790 1,650 920 908 1,220 1,110
6 695 692 716 1,920 7,110 12,100 5,580 1,610 921 894 1,200 1,060
7 698 689 727 2,050 7,480 11,700 5,340 1,560 915 883 1,290 1,010
8 710 706 735 2,110 7,660 11,700 5,130 1,510 898 868 1,340 960
9 709 739 740 2,190 7,910 11,800 4,880 1,470 893 883 1,250 941
10 706 788 762 2,330 8,200 10,800 4,670 1,430 886 930 1,260 946
11 700 778 773 2,380 8,460 10,500 4,490 1,390 872 966 1,410 951
12 690 762 797 2,470 8,730 10,400 4,280 1,340 865 1,030 1,550 968
13 696 748 848 2,600 9,110 10,400 4,130 1,310 880 1,000 1,390 954
14 702 735 853 2,790 9,220 10,300 4,040 1,270 855 1,000 1,330 926
15 718 727 905 2,960 9,400 10,100 3,860 1,250 858 1,040 1,270 905
16 769 723 1,090 3,040 9,790 10,100 3,650 1,240 858 1,090 1,230 882
17 815 720 1,080 3,150 10,300 10,100 3,470 1,220 867 1,110 1,200 873
18 797 710 1,060 3,390 10,700 9,840 3,320 1,190 907 1,080 1,160 854
19 769 709 1,090 3,590 10,900 9,670 3,190 1,160 936 1,090 1,120 832
20 767 713 1,080 3,900 11,100 9,720 3,070 1,140 911 1,100 1,100 821
21 748 730 1,080 4,250 11,200 9,120 2,930 1,120 920 1,110 1,110 832
22 740 746 1,070 4,450 11,400 8,930 2,780 1,100 921 1,110 1,100 829
23 727 739 1,090 4,690 11,700 8,690 2,680 1,100 912 1,100 1,130 846
24 716 723 1,110 5,000 11,700 8,380 2,570 1,100 901 1,080 1,270 846
25 709 729 1,140 5,230 11,700 8,090 2,470 1,100 903 1,100 1,310 842
26 697 738 1,200 5,160 12,100 7,790 2,380 1,100 926 1,150 1,260 839
27 683 724 1,220 5,170 12,100 7,530 2,290 1,080 916 1,140 1,180 875
28 675 709 1,250 5,280 11,900 7,230 2,200 1,050 898 1,140 1,160 846
29 666 633 1,300 5,480 11,700 6,980 2,120 1,030 884 1,130 1,130 800
30 664   1,350 5,670 11,800 6,930 2,060 1,010 888 1,120 1,150 773
31 695   1,450   11,900   1,980 992   1,130   750