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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 June 11, 2020 - USGS water-resources monitoring activities will be restored at the following sites:
  • 12323600 Silver Bow Creek at Opportunity, Montana (POR: 31 years)
  • 12323750 Silver Bow Creek at Warm Springs, Montana (POR: 35 years)

Updated May 12, 2020 - USGS water-resources monitoring activities were suspended effective June 1, 2020 at the following site:
  • 06088500 Muddy Creek near Vaughn, Montana (POR: 82 years)
USGS monitoring activities at this site was funded by our partner and USGS Cooperative Matching Funds (06088500). Lack of partner funding for this site resulted in suspension of all USGS monitoring activities. Efforts are ongoing to secure funding for future monitoring. Historical data will continue to be available from USGS.

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 12355500 N F Flathead River nr Columbia Falls MT


Flathead County, Montana
Hydrologic Unit Code 17010206
Latitude  48°29'44.87", Longitude 114°07'36.35" NAD83
Drainage area 1,556  square miles
Gage datum 3,145.59 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 1939-10-01 -> 2020-09-30)

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
1 790 730 749 1,510 6,090 12,000 6,660 2,190 1,240 1,130 1,240 1,120
2 775 744 731 1,550 6,190 11,900 6,430 2,130 1,230 1,170 1,240 1,100
3 767 751 730 1,600 6,410 12,100 6,160 2,070 1,220 1,160 1,240 1,110
4 750 750 739 1,680 6,680 12,200 5,940 2,010 1,200 1,130 1,250 1,130
5 748 750 744 1,770 6,940 12,300 5,730 1,940 1,180 1,110 1,290 1,110
6 760 749 759 1,900 7,350 12,200 5,520 1,890 1,180 1,090 1,270 1,060
7 774 755 776 2,030 7,720 12,100 5,300 1,840 1,170 1,080 1,340 1,010
8 796 762 785 2,130 7,990 11,900 5,090 1,790 1,150 1,070 1,460 966
9 794 775 791 2,240 8,250 11,800 4,910 1,760 1,150 1,070 1,370 959
10 789 774 804 2,370 8,550 11,200 4,720 1,740 1,130 1,090 1,300 994
11 770 783 816 2,480 8,840 10,700 4,540 1,700 1,120 1,100 1,350 999
12 759 773 839 2,580 9,090 10,400 4,370 1,660 1,110 1,120 1,400 1,010
13 754 766 877 2,720 9,540 10,300 4,240 1,620 1,100 1,120 1,380 998
14 765 765 885 2,900 9,760 10,200 4,150 1,580 1,090 1,120 1,410 979
15 792 762 919 3,030 9,790 9,970 4,030 1,540 1,090 1,140 1,360 961
16 814 767 1,020 3,120 10,100 9,870 3,850 1,510 1,090 1,170 1,320 932
17 835 761 1,040 3,240 10,500 9,920 3,660 1,490 1,090 1,200 1,270 917
18 812 751 1,030 3,470 10,800 9,900 3,510 1,460 1,100 1,200 1,230 898
19 809 746 1,060 3,660 11,000 9,600 3,370 1,420 1,120 1,200 1,200 880
20 793 749 1,050 3,930 11,200 9,350 3,250 1,390 1,120 1,250 1,190 880
21 787 749 1,050 4,210 11,400 9,110 3,110 1,370 1,130 1,270 1,180 885
22 785 755 1,060 4,450 11,600 8,780 2,980 1,360 1,130 1,250 1,150 878
23 782 736 1,090 4,680 11,800 8,550 2,860 1,360 1,120 1,230 1,130 877
24 783 726 1,110 5,020 11,900 8,320 2,760 1,360 1,110 1,210 1,190 864
25 778 727 1,150 5,310 12,000 8,070 2,670 1,360 1,100 1,210 1,230 862
26 759 736 1,210 5,340 12,200 7,770 2,600 1,350 1,110 1,230 1,180 859
27 740 753 1,220 5,350 12,300 7,480 2,520 1,340 1,110 1,240 1,140 885
28 731 750 1,270 5,470 12,200 7,170 2,440 1,320 1,100 1,240 1,120 895
29 724 709 1,320 5,660 12,000 6,900 2,380 1,290 1,080 1,240 1,100 863
30 727   1,380 5,870 12,000 6,790 2,320 1,270 1,080 1,220 1,120 835
31 723   1,450   12,000   2,260 1,250   1,230   812