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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 06036650 Jefferson River near Three Forks MT


Broadwater County, Montana
Hydrologic Unit Code 10020005
Latitude  45°53'49.69", Longitude 111°35'44.42" NAD83
Drainage area 9,558  square miles
Gage datum 4,076.76 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 1978-10-01 -> 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 1,130 1,120 1,240 1,660 2,780 5,530 3,320 796 813 1,200 1,560 1,380
2 1,130 1,110 1,250 1,710 2,800 5,570 3,230 778 819 1,230 1,560 1,360
3 1,140 1,120 1,250 1,740 2,820 5,590 3,130 754 814 1,260 1,570 1,380
4 1,150 1,110 1,240 1,750 2,840 5,590 3,080 731 811 1,290 1,580 1,370
5 1,140 1,110 1,230 1,780 2,880 5,570 3,010 713 821 1,300 1,600 1,350
6 1,130 1,110 1,250 1,830 2,900 5,620 2,870 698 819 1,310 1,600 1,330
7 1,130 1,120 1,290 1,870 2,920 5,750 2,680 684 824 1,330 1,600 1,310
8 1,140 1,140 1,310 1,900 2,960 5,890 2,500 671 824 1,350 1,600 1,290
9 1,150 1,160 1,350 1,950 3,030 5,980 2,320 662 837 1,360 1,610 1,270
10 1,150 1,170 1,350 2,010 3,070 5,940 2,210 655 849 1,370 1,600 1,260
11 1,140 1,170 1,370 2,080 3,080 5,790 2,150 654 865 1,380 1,560 1,250
12 1,120 1,180 1,410 2,150 3,110 5,670 2,100 652 888 1,410 1,520 1,250
13 1,130 1,200 1,430 2,190 3,090 5,510 2,040 654 906 1,430 1,520 1,270
14 1,150 1,230 1,440 2,210 3,090 5,310 1,920 654 910 1,440 1,530 1,280
15 1,160 1,240 1,450 2,210 3,140 5,170 1,780 653 922 1,450 1,530 1,280
16 1,160 1,260 1,470 2,220 3,250 5,070 1,680 655 932 1,480 1,530 1,230
17 1,150 1,260 1,500 2,230 3,460 5,100 1,570 663 934 1,500 1,530 1,190
18 1,140 1,270 1,520 2,250 3,750 5,150 1,480 666 947 1,510 1,520 1,170
19 1,180 1,270 1,530 2,300 4,010 5,180 1,410 662 966 1,520 1,510 1,140
20 1,170 1,270 1,520 2,370 4,160 5,140 1,320 659 989 1,530 1,490 1,140
21 1,160 1,290 1,530 2,460 4,290 4,990 1,240 670 1,010 1,540 1,470 1,160
22 1,140 1,290 1,550 2,540 4,470 4,760 1,160 700 1,040 1,540 1,450 1,150
23 1,150 1,260 1,560 2,640 4,650 4,550 1,090 737 1,050 1,540 1,410 1,140
24 1,150 1,240 1,570 2,780 4,850 4,380 1,030 760 1,060 1,550 1,390 1,150
25 1,150 1,230 1,570 2,850 4,880 4,200 978 778 1,070 1,550 1,400 1,140
26 1,160 1,230 1,570 2,860 5,000 3,980 935 791 1,080 1,560 1,410 1,150
27 1,160 1,230 1,570 2,810 5,120 3,770 917 789 1,100 1,570 1,420 1,150
28 1,160 1,240 1,580 2,760 5,240 3,630 908 794 1,120 1,580 1,420 1,170
29 1,140 1,310 1,610 2,740 5,350 3,510 882 786 1,130 1,570 1,400 1,150
30 1,130   1,630 2,760 5,440 3,410 850 785 1,150 1,550 1,380 1,130
31 1,120   1,640   5,510   819 790   1,550   1,130