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USGS Surface-Water 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 -> 2024-09-30)

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 5,170 5,580 6,920 9,840 17,200 13,900 5,670 4,720 5,040 5,390 5,380
2 4,810 5,140 5,610 6,940 9,960 17,400 13,600 5,590 4,750 5,070 5,440 5,380
3 4,840 5,230 5,610 6,910 10,100 17,600 13,100 5,540 4,780 5,060 5,460 5,360
4 4,900 5,270 5,590 6,850 10,200 17,900 12,600 5,420 4,770 5,090 5,490 5,430
5 4,950 5,260 5,670 6,860 10,400 18,200 12,300 5,380 4,730 5,130 5,510 5,390
6 5,010 5,270 5,720 6,820 10,500 18,600 11,900 5,390 4,780 5,150 5,470 5,250
7 5,010 5,220 5,680 6,800 10,700 18,500 11,700 5,360 4,740 5,170 5,520 5,280
8 5,120 5,210 5,740 6,930 11,000 18,500 11,300 5,300 4,790 5,150 5,480 5,320
9 5,120 5,270 5,850 7,090 11,400 18,700 10,900 5,310 4,840 5,170 5,500 5,270
10 5,100 5,300 5,920 7,200 11,700 18,800 10,500 5,230 4,860 5,140 5,520 5,200
11 5,060 5,350 6,070 7,240 11,900 18,800 9,980 5,170 4,830 5,170 5,440 5,230
12 5,100 5,360 6,130 7,380 12,100 18,900 9,690 5,150 4,900 5,160 5,470 5,230
13 5,110 5,420 6,120 7,500 12,400 18,900 9,470 5,150 4,930 5,210 5,450 5,340
14 5,120 5,440 6,170 7,610 12,500 18,800 9,140 5,140 4,850 5,200 5,430 5,240
15 5,060 5,380 6,220 7,730 12,700 18,800 8,800 5,080 4,890 5,300 5,440 5,190
16 5,040 5,430 6,200 7,990 13,000 18,500 8,380 5,060 4,920 5,280 5,460 5,160
17 5,060 5,460 6,320 8,090 13,300 18,400 8,060 4,990 4,900 5,330 5,460 5,170
18 5,080 5,440 6,330 8,110 13,800 18,400 7,810 5,040 4,910 5,360 5,430 5,150
19 5,150 5,420 6,370 8,200 14,000 18,200 7,480 4,950 4,960 5,340 5,440 5,090
20 5,150 5,410 6,410 8,370 14,200 18,100 7,290 4,940 4,990 5,290 5,400 5,060
21 5,140 5,450 6,390 8,550 14,400 17,900 7,060 4,950 4,950 5,260 5,330 5,040
22 5,150 5,430 6,380 8,610 14,800 17,600 6,910 4,940 4,940 5,280 5,390 5,140
23 5,200 5,430 6,430 8,740 15,200 17,100 6,600 5,000 4,980 5,380 5,360 5,140
24 5,190 5,400 6,450 8,920 15,400 16,700 6,450 4,960 4,970 5,420 5,340 5,110
25 5,190 5,340 6,520 9,040 15,600 16,300 6,230 4,860 4,950 5,430 5,380 5,040
26 5,150 5,390 6,600 9,170 15,800 15,800 6,130 4,820 4,990 5,380 5,380 5,020
27 5,180 5,440 6,600 9,400 16,200 15,400 6,000 4,880 5,040 5,440 5,390 5,020
28 5,160 5,460 6,650 9,490 16,500 14,900 5,910 4,850 5,040 5,450 5,380 5,080
29 5,210 5,620 6,770 9,550 16,600 14,500 5,900 4,780 5,020 5,400 5,430 5,060
30 5,260   6,890 9,640 16,900 14,200 5,850 4,750 5,070 5,410 5,380 5,020
31 5,190   6,870   17,100   5,750 4,730   5,380   5,020