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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 12389000 Clark Fork near Plains MT


Sanders County, Montana
Hydrologic Unit Code 17010213
Latitude  47°25'45.12", Longitude 114°51'23.52" NAD83
Drainage area 19,964  square miles
Gage datum 2,449.11 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 1910-10-01 -> 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 11,900 11,900 11,800 13,800 29,600 58,200 40,400 13,800 9,240 9,790 11,200 11,600
2 11,700 11,900 11,700 13,900 30,200 57,900 39,000 13,400 9,180 9,910 11,300 11,700
3 12,000 11,900 11,600 14,200 30,700 57,500 37,800 13,100 9,050 9,910 11,300 11,800
4 12,100 11,900 11,600 14,300 31,400 57,600 36,900 12,900 9,130 10,000 11,300 12,100
5 12,000 11,800 11,600 14,400 32,400 57,900 35,600 12,500 9,280 10,000 11,400 12,200
6 12,200 11,900 11,600 14,700 33,500 58,300 34,700 12,200 9,230 10,100 11,300 12,200
7 12,200 12,000 11,600 15,000 34,600 58,600 33,600 12,000 9,170 10,100 11,300 12,000
8 12,300 12,100 11,500 15,300 35,600 58,800 32,400 11,800 9,250 10,200 11,400 12,000
9 12,200 12,100 11,400 15,700 36,700 59,000 30,900 11,500 9,280 10,200 11,400 12,100
10 12,400 12,100 11,600 16,100 37,800 58,400 29,500 11,200 9,390 10,100 11,500 12,200
11 12,300 12,100 11,600 16,500 38,800 57,700 28,300 11,100 9,500 10,200 11,300 12,300
12 12,300 12,100 11,800 16,800 40,000 57,000 27,200 10,800 9,350 10,200 11,400 12,300
13 12,200 12,100 11,900 17,100 40,900 56,200 26,100 10,800 9,340 10,200 11,300 12,400
14 12,200 12,100 11,900 17,800 41,800 55,900 25,500 10,600 9,370 10,100 11,400 12,500
15 12,100 12,100 12,000 18,500 42,900 55,500 24,700 10,600 9,400 10,200 11,400 12,600
16 12,300 12,100 12,100 19,100 44,300 54,800 23,900 10,400 9,400 10,200 11,500 12,700
17 12,400 12,000 12,100 19,500 45,700 54,600 23,100 10,200 9,330 10,300 11,700 12,700
18 12,300 12,000 12,100 20,000 47,200 54,300 22,100 10,000 9,350 10,300 11,600 12,500
19 12,100 11,900 12,200 20,600 48,500 53,700 20,600 9,890 9,530 10,400 11,700 12,400
20 12,000 12,000 12,400 21,200 49,400 52,700 20,000 9,840 9,440 10,400 11,600 12,400
21 12,100 12,100 12,400 22,100 50,400 52,100 19,400 9,850 9,570 10,600 11,600 12,600
22 12,000 12,100 12,500 23,000 51,500 51,500 18,800 9,790 9,650 10,800 11,700 12,500
23 12,100 12,000 12,600 23,700 52,400 50,200 18,200 9,730 9,680 10,800 11,600 12,400
24 12,100 11,900 12,600 24,500 53,200 48,500 17,600 9,640 9,730 10,800 11,500 12,500
25 12,100 12,000 12,700 25,300 54,000 47,600 17,100 9,660 9,830 10,700 11,600 12,200
26 12,100 12,000 12,700 25,900 54,700 46,200 16,500 9,590 9,810 10,900 11,700 11,800
27 11,900 12,000 12,700 26,300 55,500 44,800 16,000 9,520 9,800 10,900 11,700 11,900
28 11,800 11,900 12,900 26,900 56,700 43,800 15,700 9,440 9,870 11,100 11,600 12,300
29 11,700 11,500 13,100 27,700 56,900 43,100 15,300 9,350 9,780 11,000 11,600 12,200
30 11,800   13,300 28,400 57,200 41,900 15,000 9,400 9,700 11,100 11,600 12,200
31 11,800   13,400   57,600   14,500 9,270   11,200   12,100