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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 06038500 Madison River bl Hebgen Lake nr Grayling MT


Gallatin County, Montana
Hydrologic Unit Code 10020007
Latitude  44°51'59.01", Longitude 111°20'19.61" NAD83
Drainage area 931  square miles
Gage datum 6,448.47 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 79 - 80 years of record in, ft3/s   (Calculation Period 1938-10-01 -> 2018-09-30)

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
1 924 867 818 913 877 1,200 1,120 1,070 1,110 1,150 1,340 1,090
2 923 871 821 917 857 1,240 1,090 1,080 1,100 1,200 1,350 1,050
3 921 870 819 929 845 1,240 1,070 1,070 1,090 1,190 1,350 1,010
4 918 869 814 928 838 1,250 1,050 1,080 1,080 1,180 1,350 993
5 917 866 811 916 823 1,290 1,050 1,080 1,080 1,170 1,350 985
6 922 863 816 916 812 1,320 1,040 1,070 1,080 1,180 1,350 977
7 925 856 820 927 809 1,330 1,020 1,060 1,090 1,180 1,340 968
8 921 850 823 943 802 1,340 1,000 1,050 1,110 1,180 1,340 969
9 915 849 820 957 804 1,360 999 1,050 1,120 1,190 1,350 964
10 917 850 811 954 799 1,380 1,010 1,050 1,120 1,210 1,370 955
11 922 850 812 938 792 1,360 1,010 1,050 1,130 1,220 1,370 957
12 920 849 810 933 805 1,330 1,020 1,040 1,130 1,230 1,370 961
13 918 855 805 937 822 1,300 1,020 1,030 1,120 1,250 1,350 976
14 922 857 818 938 826 1,300 995 1,040 1,120 1,280 1,330 982
15 919 855 840 938 831 1,290 991 1,050 1,120 1,290 1,330 983
16 914 855 849 943 845 1,270 990 1,040 1,120 1,290 1,320 980
17 905 851 855 942 860 1,260 1,000 1,040 1,120 1,300 1,310 974
18 900 847 856 939 863 1,250 1,010 1,020 1,130 1,310 1,290 970
19 900 847 855 927 854 1,240 1,010 1,020 1,130 1,330 1,300 970
20 903 848 854 921 852 1,220 1,010 1,040 1,130 1,340 1,310 968
21 900 849 863 924 856 1,180 1,030 1,040 1,130 1,330 1,320 973
22 895 848 870 921 870 1,160 1,030 1,030 1,120 1,330 1,300 971
23 891 842 874 916 884 1,140 1,030 1,040 1,100 1,320 1,250 957
24 887 834 876 907 906 1,130 1,030 1,060 1,100 1,280 1,220 940
25 881 828 878 907 925 1,140 1,030 1,080 1,090 1,280 1,200 939
26 873 824 878 911 952 1,120 1,050 1,090 1,100 1,280 1,200 939
27 871 821 880 905 1,000 1,160 1,060 1,100 1,120 1,280 1,190 937
28 871 819 887 898 1,060 1,180 1,060 1,090 1,120 1,310 1,160 932
29 872 832 889 886 1,110 1,180 1,060 1,090 1,120 1,320 1,150 931
30 868   902 883 1,140 1,160 1,060 1,100 1,130 1,330 1,120 934
31 865   912   1,160   1,070 1,100   1,330   931