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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 06026500 Jefferson River near Twin Bridges MT


Madison County, Montana
Hydrologic Unit Code 10020005
Latitude  45°36'47.82", Longitude 112°19'45.83" NAD83
Drainage area 7,616  square miles
Gage datum 4,560 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 1939-10-01 -> 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
1 998 990 1,020 1,540 2,520 5,300 3,210 815 737 1,060 1,330 1,220
2 992 1,020 1,020 1,610 2,520 5,350 3,040 802 737 1,080 1,340 1,230
3 979 1,020 1,020 1,620 2,510 5,350 2,860 784 742 1,080 1,350 1,220
4 991 1,010 1,030 1,640 2,520 5,440 2,720 767 760 1,090 1,350 1,200
5 1,010 1,010 1,020 1,720 2,580 5,580 2,590 757 762 1,110 1,340 1,160
6 1,010 1,020 1,030 1,790 2,660 5,740 2,460 751 771 1,120 1,330 1,130
7 1,020 1,030 1,050 1,880 2,760 5,890 2,350 742 784 1,130 1,330 1,120
8 1,030 1,050 1,060 1,990 2,880 5,990 2,260 727 787 1,140 1,340 1,110
9 1,020 1,060 1,060 1,990 2,970 6,010 2,190 710 793 1,150 1,360 1,090
10 1,010 1,050 1,070 2,050 3,020 6,060 2,120 697 797 1,150 1,340 1,090
11 988 1,040 1,090 2,170 3,050 5,980 2,030 687 808 1,170 1,330 1,090
12 947 1,030 1,130 2,220 3,070 5,740 1,960 678 814 1,180 1,320 1,100
13 953 1,030 1,160 2,230 3,110 5,580 1,890 673 814 1,190 1,310 1,110
14 970 1,030 1,170 2,210 3,190 5,440 1,820 674 815 1,200 1,320 1,100
15 972 1,030 1,190 2,200 3,270 5,270 1,740 666 827 1,210 1,330 1,100
16 964 1,030 1,220 2,210 3,390 5,130 1,650 663 840 1,230 1,330 1,090
17 969 1,020 1,260 2,200 3,590 5,030 1,560 661 839 1,240 1,320 1,100
18 961 1,010 1,260 2,200 3,810 5,040 1,480 655 857 1,240 1,310 1,080
19 969 1,010 1,270 2,210 3,940 5,000 1,400 647 873 1,250 1,310 1,060
20 963 1,030 1,290 2,250 4,070 4,880 1,340 652 897 1,250 1,300 1,060
21 959 1,040 1,310 2,340 4,230 4,690 1,270 657 931 1,260 1,290 1,060
22 962 1,030 1,320 2,400 4,350 4,570 1,210 669 954 1,260 1,280 1,060
23 955 1,000 1,350 2,470 4,440 4,390 1,160 692 965 1,260 1,260 1,060
24 954 988 1,360 2,510 4,510 4,210 1,100 706 974 1,280 1,270 1,060
25 954 987 1,380 2,520 4,620 4,070 1,040 710 998 1,300 1,280 1,040
26 955 990 1,390 2,490 4,730 3,970 989 714 1,000 1,300 1,280 1,030
27 957 998 1,410 2,450 4,810 3,880 951 713 999 1,310 1,270 1,020
28 959 1,000 1,450 2,420 4,870 3,740 929 714 1,010 1,310 1,260 1,030
29 957 1,060 1,540 2,430 4,940 3,600 903 724 1,020 1,320 1,230 1,040
30 974   1,490 2,470 5,100 3,430 889 733 1,040 1,310 1,210 1,030
31 982   1,490   5,210   876 743   1,320   1,020