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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 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 -> 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 4,790 5,180 5,590 6,890 9,780 17,200 13,800 5,670 4,720 5,040 5,390 5,370
2 4,800 5,150 5,610 6,910 9,890 17,300 13,500 5,580 4,750 5,070 5,430 5,370
3 4,840 5,250 5,610 6,880 10,000 17,500 13,100 5,530 4,780 5,060 5,450 5,350
4 4,900 5,280 5,580 6,830 10,200 17,800 12,500 5,420 4,770 5,090 5,480 5,420
5 4,940 5,250 5,660 6,840 10,300 18,200 12,200 5,380 4,730 5,130 5,500 5,390
6 5,010 5,270 5,700 6,800 10,500 18,500 11,900 5,380 4,780 5,150 5,460 5,240
7 5,010 5,220 5,670 6,780 10,700 18,400 11,600 5,350 4,740 5,170 5,520 5,270
8 5,120 5,210 5,730 6,910 11,000 18,500 11,300 5,300 4,790 5,150 5,470 5,310
9 5,120 5,270 5,840 7,070 11,300 18,600 10,900 5,310 4,840 5,160 5,500 5,260
10 5,100 5,290 5,910 7,170 11,600 18,700 10,500 5,230 4,860 5,140 5,520 5,190
11 5,060 5,340 6,050 7,200 11,900 18,700 9,940 5,170 4,830 5,170 5,430 5,220
12 5,090 5,350 6,110 7,350 12,100 18,800 9,660 5,150 4,900 5,160 5,460 5,230
13 5,100 5,410 6,100 7,470 12,300 18,900 9,430 5,140 4,930 5,200 5,450 5,330
14 5,110 5,430 6,150 7,570 12,500 18,700 9,110 5,140 4,850 5,200 5,430 5,230
15 5,060 5,370 6,210 7,700 12,700 18,700 8,770 5,080 4,900 5,290 5,430 5,180
16 5,040 5,420 6,180 7,960 13,000 18,500 8,360 5,060 4,920 5,280 5,450 5,150
17 5,060 5,450 6,300 8,050 13,300 18,300 8,030 4,990 4,900 5,320 5,450 5,170
18 5,090 5,430 6,310 8,070 13,700 18,300 7,780 5,040 4,910 5,350 5,420 5,140
19 5,160 5,410 6,350 8,170 13,900 18,100 7,460 4,950 4,970 5,330 5,440 5,080
20 5,150 5,410 6,390 8,340 14,200 18,000 7,270 4,930 5,000 5,280 5,390 5,060
21 5,140 5,450 6,370 8,510 14,400 17,900 7,050 4,950 4,960 5,250 5,320 5,040
22 5,160 5,430 6,350 8,570 14,800 17,500 6,900 4,940 4,950 5,280 5,380 5,140
23 5,210 5,420 6,410 8,690 15,200 17,100 6,590 4,990 4,980 5,370 5,350 5,130
24 5,190 5,400 6,430 8,870 15,300 16,700 6,430 4,960 4,980 5,410 5,330 5,110
25 5,200 5,350 6,490 8,990 15,600 16,200 6,220 4,860 4,950 5,420 5,370 5,030
26 5,160 5,400 6,580 9,120 15,800 15,700 6,120 4,820 4,990 5,380 5,370 5,020
27 5,180 5,430 6,580 9,340 16,100 15,300 6,000 4,880 5,040 5,430 5,390 5,020
28 5,160 5,450 6,620 9,430 16,400 14,800 5,900 4,840 5,040 5,440 5,380 5,070
29 5,210 5,610 6,740 9,490 16,600 14,500 5,890 4,780 5,010 5,390 5,430 5,050
30 5,270   6,860 9,590 16,800 14,200 5,840 4,740 5,070 5,410 5,380 5,010
31 5,200   6,840   17,000   5,740 4,730   5,380   5,010