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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 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 -> 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
1 735 733 698 1,520 5,870 11,600 6,660 1,880 978 924 1,170 1,130
2 720 736 700 1,550 6,010 11,500 6,380 1,830 961 933 1,160 1,110
3 707 720 716 1,610 6,300 11,800 6,180 1,770 950 919 1,150 1,160
4 695 713 730 1,700 6,610 12,100 6,010 1,700 928 893 1,180 1,170
5 691 706 729 1,770 6,870 12,100 5,740 1,640 919 895 1,250 1,130
6 698 697 734 1,920 7,280 12,100 5,530 1,590 919 882 1,280 1,070
7 701 691 740 2,040 7,660 11,600 5,300 1,540 912 866 1,350 1,040
8 713 707 746 2,110 7,780 11,600 5,090 1,500 893 851 1,380 992
9 711 737 746 2,190 7,970 11,700 4,840 1,460 888 865 1,280 972
10 707 783 765 2,320 8,200 10,800 4,630 1,420 880 909 1,280 972
11 700 773 775 2,380 8,420 10,500 4,450 1,380 867 945 1,410 973
12 689 756 797 2,470 8,670 10,400 4,240 1,330 862 1,000 1,540 987
13 697 743 846 2,600 9,040 10,400 4,090 1,290 874 982 1,400 969
14 705 730 851 2,770 9,160 10,300 4,000 1,260 849 981 1,340 940
15 720 718 902 2,930 9,350 10,100 3,820 1,230 851 1,020 1,330 917
16 770 714 1,090 3,000 9,780 10,100 3,610 1,230 850 1,060 1,290 893
17 814 712 1,080 3,110 10,300 10,000 3,440 1,210 858 1,080 1,240 882
18 797 702 1,050 3,340 10,700 9,850 3,290 1,180 896 1,050 1,190 860
19 768 701 1,090 3,540 10,900 9,680 3,160 1,140 924 1,060 1,150 838
20 766 706 1,080 3,830 11,000 9,720 3,040 1,120 900 1,080 1,120 827
21 747 722 1,080 4,170 11,100 9,190 2,900 1,110 909 1,090 1,130 836
22 739 736 1,070 4,360 11,300 8,980 2,760 1,100 909 1,090 1,110 835
23 726 729 1,080 4,590 11,500 8,720 2,650 1,100 901 1,080 1,140 851
24 715 713 1,110 4,890 11,600 8,380 2,540 1,090 890 1,060 1,270 851
25 708 719 1,150 5,110 11,600 8,060 2,440 1,090 891 1,070 1,310 844
26 696 730 1,200 5,060 12,000 7,740 2,350 1,090 913 1,120 1,250 840
27 680 715 1,220 5,080 12,000 7,480 2,270 1,070 902 1,110 1,180 875
28 673 701 1,260 5,200 11,800 7,190 2,180 1,040 885 1,110 1,160 849
29 665 633 1,320 5,400 11,700 6,950 2,100 1,020 872 1,130 1,130 805
30 667   1,370 5,640 11,700 6,890 2,040 1,010 876 1,140 1,150 779
31 699   1,460   11,800   1,960 1,000   1,140   756