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USGS Daily Statistics for Montana

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Questions or concerns about USGS streamflow data in Montana and Wyoming can be directed to Kirk Miller (kmiller@usgs.gov; 307-775-9168).

Updated September 18, 2020 - USGS water-resources monitoring activities were restored effective August 17, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)

Updated June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)


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 06090800 Missouri River at Fort Benton MT


Chouteau County, Montana
Hydrologic Unit Code 10030102
Latitude  47°49'00.88", Longitude 110°39'58.11" NAD83
Drainage area 24,297  square miles
Gage datum 2,614.05 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 1890-10-01 -> 2020-09-30)

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 4,780 5,180 5,590 6,960 9,910 17,400 14,100 5,690 4,710 5,040 5,410 5,400
2 4,790 5,140 5,620 6,980 10,000 17,500 13,700 5,600 4,750 5,080 5,450 5,400
3 4,840 5,240 5,620 6,950 10,100 17,800 13,300 5,550 4,770 5,070 5,480 5,380
4 4,900 5,280 5,600 6,890 10,300 18,100 12,700 5,430 4,770 5,100 5,510 5,450
5 4,950 5,260 5,690 6,900 10,400 18,400 12,400 5,390 4,720 5,140 5,530 5,410
6 5,010 5,280 5,730 6,860 10,500 18,700 12,000 5,400 4,770 5,160 5,480 5,250
7 5,010 5,240 5,700 6,830 10,800 18,700 11,800 5,370 4,740 5,180 5,540 5,290
8 5,130 5,220 5,760 6,970 11,100 18,700 11,400 5,310 4,790 5,170 5,500 5,330
9 5,130 5,280 5,870 7,130 11,400 18,900 11,000 5,320 4,840 5,190 5,520 5,270
10 5,110 5,300 5,960 7,250 11,700 19,000 10,600 5,240 4,860 5,170 5,550 5,210
11 5,070 5,360 6,110 7,270 12,000 18,900 10,100 5,170 4,830 5,190 5,460 5,230
12 5,110 5,370 6,160 7,410 12,200 19,100 9,760 5,150 4,900 5,180 5,480 5,240
13 5,120 5,430 6,150 7,520 12,500 19,100 9,540 5,150 4,930 5,230 5,470 5,350
14 5,120 5,450 6,200 7,640 12,600 19,000 9,210 5,150 4,850 5,220 5,450 5,250
15 5,060 5,390 6,250 7,770 12,900 19,000 8,860 5,090 4,890 5,320 5,460 5,200
16 5,040 5,450 6,220 8,040 13,100 18,700 8,440 5,060 4,920 5,310 5,480 5,170
17 5,060 5,480 6,350 8,150 13,400 18,500 8,120 5,000 4,900 5,350 5,480 5,180
18 5,080 5,460 6,360 8,170 13,900 18,600 7,860 5,040 4,910 5,380 5,450 5,160
19 5,160 5,430 6,400 8,250 14,100 18,400 7,520 4,950 4,970 5,360 5,460 5,100
20 5,160 5,430 6,450 8,430 14,300 18,300 7,340 4,940 5,000 5,310 5,410 5,070
21 5,160 5,460 6,430 8,610 14,500 18,100 7,110 4,950 4,950 5,280 5,340 5,050
22 5,170 5,450 6,410 8,680 14,900 17,700 6,950 4,940 4,950 5,300 5,410 5,150
23 5,220 5,470 6,470 8,800 15,300 17,300 6,630 4,990 4,980 5,400 5,370 5,150
24 5,200 5,440 6,480 8,990 15,500 16,900 6,470 4,950 4,970 5,440 5,360 5,110
25 5,220 5,370 6,560 9,120 15,800 16,500 6,250 4,850 4,940 5,450 5,400 5,030
26 5,180 5,410 6,640 9,240 16,000 15,900 6,140 4,820 4,990 5,400 5,390 5,020
27 5,190 5,440 6,640 9,460 16,300 15,500 6,020 4,870 5,040 5,460 5,410 5,030
28 5,170 5,470 6,690 9,550 16,600 15,000 5,920 4,840 5,050 5,470 5,400 5,080
29 5,230 5,620 6,820 9,610 16,700 14,700 5,910 4,770 5,030 5,420 5,450 5,050
30 5,280   6,940 9,710 17,000 14,400 5,860 4,740 5,080 5,430 5,400 5,010
31 5,210   6,920   17,200   5,770 4,720   5,400   5,010