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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 21, 2018 - USGS water-resources monitoring will continue with partner funds and USGS Cooperative Matching Funds at the following site: USGS water-resources monitoring will be discontinued at the following sites effective October 1, 2018:
  • 06024540 Big Hole R bel Mudd Cr nr Wisdom, MT (seasonal water temperature)
  • 06308400 Pumpkin Cr nr Miles City, MT (annual streamflow, water temperature, and sampling)
USGS monitoring activities at these sites were funded by partner agencies. Lack of partner funding for these sites resulted in discontinuation of all streamgaging activities.

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 12372000 Flathead River near Polson MT


Lake County, Montana
Hydrologic Unit Code 17010212
Latitude  47°40'49.03", Longitude 114°14'48.22" NAD83
Drainage area 7,079  square miles
Gage datum 2,692.7 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 79 - 80 years of record in, ft3/s   (Calculation Period 1938-10-01 -> 2018-09-30)

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 9,370 10,000 9,070 8,220 14,800 28,100 21,800 7,980 5,760 7,060 8,260 8,580
2 9,860 9,840 9,010 8,300 15,000 27,400 21,200 7,740 5,560 6,970 8,390 8,680
3 10,000 9,750 8,950 8,320 15,000 27,300 21,100 7,810 5,720 7,140 8,340 8,970
4 9,990 9,650 8,890 8,240 15,400 27,600 20,200 7,420 5,910 7,150 8,390 9,190
5 10,100 9,690 8,870 8,460 15,700 28,100 20,000 7,330 5,880 7,110 8,140 9,380
6 10,000 9,810 8,890 8,500 16,000 28,500 19,800 7,120 5,790 7,160 8,050 9,300
7 10,000 9,780 8,670 8,510 16,200 28,900 19,100 7,170 5,980 7,240 8,170 9,390
8 9,960 9,720 8,590 8,690 16,500 29,500 18,000 6,790 5,970 7,200 8,130 9,620
9 10,100 9,680 8,590 8,860 17,100 29,300 17,000 6,660 6,150 7,110 8,230 9,850
10 10,200 9,670 8,640 9,060 17,500 29,000 16,300 6,610 6,310 7,170 8,110 10,000
11 10,300 9,580 8,700 9,140 18,100 28,700 15,700 6,380 6,100 7,210 8,150 9,960
12 10,100 9,580 8,790 9,150 18,500 28,400 14,900 6,530 6,100 7,200 8,150 9,940
13 10,200 9,600 8,750 9,450 18,800 28,300 14,800 6,380 6,160 7,030 8,220 10,000
14 10,100 9,680 8,800 9,710 19,200 28,200 14,600 6,350 6,190 7,110 8,290 10,100
15 9,990 9,710 8,690 10,000 19,800 27,800 14,100 6,270 6,230 7,190 8,420 10,300
16 10,200 9,610 8,470 10,200 20,100 27,600 14,000 6,130 6,060 7,270 8,710 10,500
17 10,000 9,480 8,410 10,400 20,600 27,700 13,500 5,930 6,110 7,250 8,670 10,300
18 9,770 9,450 8,320 10,700 21,100 27,500 11,800 5,880 6,420 7,420 8,660 10,100
19 9,770 9,510 8,460 10,900 21,500 27,100 11,400 5,940 6,260 7,310 8,610 10,300
20 9,950 9,630 8,410 11,200 21,700 27,100 11,200 6,010 6,460 7,490 8,650 10,400
21 9,860 9,660 8,410 11,700 22,100 27,500 11,100 5,990 6,510 7,770 8,680 10,300
22 9,970 9,480 8,450 12,000 22,700 27,000 10,800 5,990 6,600 7,890 8,630 9,980
23 10,100 9,450 8,220 12,300 23,300 25,800 10,300 5,920 6,690 7,810 8,500 9,950
24 10,100 9,540 8,200 12,600 23,900 25,300 10,100 6,000 6,890 7,760 8,450 9,630
25 10,100 9,480 8,090 13,000 24,300 24,700 9,750 5,960 6,830 7,840 8,600 9,240
26 10,000 9,490 8,110 13,300 24,800 23,900 9,350 6,020 6,850 7,950 8,570 9,490
27 9,940 9,400 8,190 13,600 25,700 23,600 9,350 5,950 7,010 8,040 8,560 9,940
28 9,810 9,220 8,230 14,000 26,200 23,800 9,180 5,830 6,900 8,010 8,530 10,000
29 9,890 8,670 8,230 14,300 26,200 23,500 9,070 5,990 6,760 8,190 8,580 9,960
30 9,970   8,170 14,700 26,800 22,700 8,740 5,890 6,930 8,210 8,560 9,790
31 9,980   8,230   27,700   8,430 5,910   8,200   9,650