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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 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 -> 2025-09-30)

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
1 894 911 990 1,670 4,100 9,340 5,430 1,080 819 853 1,140 1,180
2 929 946 1,000 1,740 4,130 9,460 5,100 1,050 821 920 1,150 1,200
3 914 921 1,020 1,780 4,210 9,570 4,820 1,010 818 895 1,130 1,180
4 889 887 1,020 1,840 4,360 9,970 4,640 978 806 885 1,110 1,110
5 866 893 1,010 1,940 4,550 10,100 4,410 961 803 878 1,100 1,080
6 846 895 1,020 2,050 4,860 9,980 4,150 951 808 881 1,120 1,050
7 854 890 1,080 2,100 5,170 9,690 3,920 938 811 883 1,180 1,010
8 880 988 1,100 2,140 5,360 9,260 3,710 943 810 877 1,330 988
9 891 1,040 1,110 2,240 5,400 8,810 3,520 929 811 883 1,300 985
10 871 1,090 1,120 2,370 5,530 8,490 3,360 915 810 895 1,190 999
11 865 1,100 1,160 2,460 5,710 8,440 3,200 898 824 881 1,150 1,000
12 859 1,030 1,170 2,540 5,880 8,320 3,050 883 824 891 1,130 1,010
13 850 995 1,190 2,660 6,260 8,290 2,890 864 825 906 1,180 1,030
14 863 986 1,210 2,760 6,620 8,330 2,710 857 833 929 1,240 1,020
15 869 979 1,250 2,910 6,930 7,900 2,530 849 839 942 1,190 1,000
16 890 978 1,360 2,850 7,270 7,720 2,350 842 823 949 1,150 978
17 891 988 1,440 2,710 7,860 7,840 2,220 837 832 976 1,140 948
18 909 991 1,430 2,670 8,350 7,870 2,080 847 837 1,000 1,120 912
19 918 996 1,440 2,730 8,630 7,850 1,980 832 843 1,010 1,120 902
20 908 998 1,470 2,840 8,700 7,700 1,880 847 841 1,030 1,090 905
21 890 1,010 1,480 3,070 8,610 7,370 1,770 825 834 1,020 1,090 911
22 880 999 1,490 3,310 8,620 7,160 1,660 840 830 1,020 1,090 907
23 872 995 1,500 3,550 8,510 6,840 1,550 853 830 1,030 1,090 879
24 859 997 1,530 3,680 8,380 6,570 1,460 852 831 1,030 1,140 868
25 847 975 1,540 3,750 8,560 6,290 1,380 854 829 1,020 1,130 863
26 848 969 1,580 3,690 8,620 6,130 1,320 853 823 1,020 1,110 851
27 862 965 1,600 3,700 8,930 5,960 1,270 856 819 1,040 1,090 847
28 870 958 1,600 3,820 9,080 5,690 1,230 855 819 1,040 1,070 853
29 851 1,000 1,610 3,910 9,160 5,530 1,180 845 816 1,070 1,080 865
30 849   1,610 3,940 9,360 5,530 1,140 830 820 1,110 1,110 876
31 866   1,620   9,180   1,110 827   1,100   889