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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 80 - 81 years of record in, ft3/s   (Calculation Period 1938-10-01 -> 2019-09-30)

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 15,000 28,300 21,800 7,970 5,740 7,040 8,260 8,580
2 9,860 9,840 9,010 8,300 15,100 27,600 21,200 7,730 5,540 6,950 8,390 8,680
3 10,000 9,750 8,950 8,320 15,200 27,400 21,000 7,790 5,700 7,120 8,340 8,970
4 9,990 9,650 8,890 8,310 15,500 27,700 20,200 7,400 5,890 7,150 8,390 9,190
5 10,100 9,690 8,870 8,530 15,900 28,100 20,000 7,320 5,860 7,110 8,140 9,380
6 10,000 9,810 8,890 8,560 16,100 28,500 19,700 7,120 5,770 7,160 8,050 9,300
7 10,000 9,780 8,670 8,570 16,400 28,900 19,000 7,170 5,960 7,240 8,170 9,390
8 9,960 9,720 8,590 8,760 16,700 29,400 18,000 6,800 5,950 7,200 8,130 9,620
9 10,100 9,680 8,590 8,920 17,300 29,200 17,000 6,670 6,120 7,110 8,230 9,850
10 10,200 9,670 8,640 9,120 17,700 28,900 16,300 6,610 6,280 7,170 8,110 10,000
11 10,300 9,580 8,700 9,200 18,400 28,600 15,700 6,380 6,070 7,210 8,150 9,960
12 10,100 9,580 8,790 9,210 18,800 28,300 14,900 6,520 6,080 7,200 8,150 9,940
13 10,200 9,600 8,750 9,510 19,000 28,300 14,800 6,370 6,140 7,030 8,220 10,000
14 10,100 9,680 8,800 9,770 19,500 28,100 14,600 6,350 6,170 7,110 8,290 10,100
15 9,990 9,710 8,690 10,100 20,000 27,700 14,100 6,270 6,210 7,190 8,420 10,300
16 10,200 9,610 8,470 10,200 20,400 27,500 14,000 6,120 6,040 7,270 8,710 10,500
17 10,000 9,480 8,410 10,400 20,900 27,600 13,400 5,930 6,090 7,250 8,670 10,300
18 9,770 9,450 8,320 10,800 21,400 27,500 11,800 5,880 6,400 7,420 8,660 10,100
19 9,770 9,510 8,460 10,900 21,800 27,100 11,400 5,930 6,230 7,310 8,610 10,300
20 9,950 9,630 8,410 11,300 22,000 27,000 11,200 6,010 6,440 7,490 8,650 10,400
21 9,860 9,660 8,410 11,700 22,400 27,400 11,000 5,990 6,480 7,770 8,680 10,300
22 9,970 9,480 8,450 12,100 22,900 26,900 10,800 5,990 6,570 7,890 8,630 9,980
23 10,100 9,450 8,220 12,400 23,500 25,800 10,300 5,910 6,660 7,810 8,500 9,950
24 10,100 9,540 8,200 12,700 24,200 25,300 10,100 5,990 6,860 7,760 8,450 9,630
25 10,100 9,480 8,090 13,100 24,600 24,700 9,750 5,950 6,800 7,840 8,600 9,240
26 10,000 9,490 8,110 13,300 25,100 23,800 9,340 6,000 6,820 7,950 8,570 9,490
27 9,940 9,400 8,190 13,700 26,000 23,500 9,330 5,930 6,980 8,040 8,560 9,940
28 9,810 9,220 8,230 14,100 26,400 23,800 9,160 5,810 6,880 8,010 8,530 10,000
29 9,890 8,670 8,230 14,400 26,500 23,500 9,050 5,970 6,730 8,190 8,580 9,960
30 9,970   8,170 14,800 27,100 22,600 8,720 5,870 6,910 8,210 8,560 9,790
31 9,980   8,230   28,000   8,410 5,880   8,200   9,650