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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 12352500 Bitterroot River near Missoula MT


Missoula County, Montana
Hydrologic Unit Code 17010205
Latitude  46°49'54.26", Longitude 114°03'17.50" NAD83
Drainage area 2,824  square miles
Gage datum 3,110 feet above NAVD88
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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 1897-10-01 -> 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
1 898 918 990 1,680 4,150 9,460 5,510 1,090 824 857 1,160 1,190
2 935 953 1,000 1,760 4,180 9,590 5,160 1,070 826 926 1,160 1,210
3 920 927 1,030 1,800 4,260 9,670 4,890 1,030 823 901 1,150 1,190
4 893 894 1,020 1,850 4,420 10,000 4,700 991 811 890 1,120 1,130
5 869 902 1,020 1,940 4,620 10,100 4,480 973 809 883 1,110 1,090
6 848 902 1,020 2,040 4,930 10,000 4,210 961 814 886 1,130 1,060
7 857 894 1,090 2,090 5,240 9,720 3,980 947 817 888 1,190 1,020
8 885 998 1,110 2,140 5,440 9,280 3,770 952 816 883 1,340 995
9 897 1,050 1,110 2,250 5,480 8,820 3,570 938 817 889 1,310 991
10 876 1,100 1,130 2,380 5,620 8,500 3,410 924 815 902 1,210 1,000
11 870 1,120 1,170 2,480 5,810 8,450 3,260 907 830 888 1,170 1,010
12 863 1,040 1,180 2,560 5,960 8,350 3,100 892 827 898 1,140 1,020
13 854 999 1,200 2,670 6,320 8,340 2,940 872 826 914 1,190 1,040
14 868 990 1,220 2,760 6,650 8,410 2,760 865 832 938 1,250 1,030
15 876 983 1,260 2,880 6,940 7,980 2,570 857 838 951 1,200 1,010
16 897 983 1,380 2,810 7,290 7,800 2,390 849 823 958 1,170 984
17 897 994 1,460 2,670 7,880 7,930 2,250 844 833 986 1,150 954
18 915 999 1,440 2,650 8,390 7,970 2,120 854 834 1,010 1,130 918
19 925 1,000 1,450 2,720 8,700 7,960 2,020 839 838 1,010 1,130 906
20 920 1,000 1,480 2,840 8,800 7,810 1,920 853 836 1,040 1,100 909
21 902 1,010 1,480 3,090 8,720 7,480 1,800 831 831 1,030 1,100 916
22 890 1,000 1,490 3,340 8,750 7,260 1,690 846 827 1,030 1,100 912
23 881 999 1,500 3,580 8,630 6,930 1,580 860 828 1,040 1,100 883
24 867 1,000 1,530 3,720 8,490 6,660 1,490 859 830 1,040 1,140 871
25 856 977 1,540 3,780 8,690 6,370 1,400 857 830 1,030 1,130 866
26 855 970 1,580 3,720 8,760 6,210 1,340 855 824 1,030 1,110 854
27 871 962 1,610 3,730 9,080 6,040 1,290 859 821 1,050 1,100 851
28 880 957 1,610 3,840 9,230 5,750 1,250 858 821 1,050 1,080 857
29 861 1,010 1,610 3,940 9,270 5,610 1,200 850 818 1,080 1,090 868
30 858   1,620 3,980 9,430 5,610 1,150 834 823 1,120 1,120 879
31 873   1,630   9,280   1,120 832   1,110   893