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USGS Daily Statistics for the Nation

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 78 - 79 years of record in, ft3/s   (Calculation Period 1939-10-01 -> 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
1 799 733 756 1,530 6,060 12,000 6,740 2,210 1,250 1,140 1,250 1,120
2 782 744 738 1,560 6,170 12,000 6,510 2,150 1,250 1,180 1,250 1,100
3 774 754 737 1,620 6,410 12,100 6,240 2,090 1,230 1,160 1,240 1,110
4 756 757 747 1,690 6,670 12,300 6,010 2,030 1,210 1,140 1,250 1,140
5 753 757 752 1,780 6,900 12,400 5,790 1,960 1,190 1,120 1,290 1,120
6 766 755 767 1,910 7,290 12,300 5,590 1,910 1,190 1,100 1,280 1,060
7 779 761 784 2,040 7,660 12,200 5,360 1,860 1,190 1,090 1,350 1,020
8 802 767 793 2,150 7,900 12,000 5,150 1,810 1,170 1,070 1,470 971
9 799 782 800 2,260 8,130 11,900 4,960 1,780 1,160 1,070 1,380 964
10 795 784 813 2,390 8,440 11,300 4,770 1,760 1,140 1,090 1,310 1,000
11 777 791 823 2,510 8,750 10,800 4,590 1,720 1,130 1,100 1,360 1,010
12 764 780 846 2,600 9,010 10,600 4,420 1,670 1,120 1,120 1,410 1,020
13 762 773 885 2,750 9,440 10,400 4,290 1,630 1,100 1,120 1,390 1,010
14 774 771 894 2,930 9,640 10,300 4,200 1,600 1,100 1,120 1,430 989
15 804 768 928 3,060 9,650 10,100 4,080 1,560 1,100 1,150 1,380 970
16 826 774 1,030 3,140 9,900 9,990 3,890 1,530 1,100 1,180 1,340 940
17 847 768 1,050 3,270 10,300 10,000 3,700 1,500 1,100 1,210 1,280 925
18 822 759 1,050 3,510 10,700 10,000 3,550 1,470 1,110 1,210 1,240 905
19 818 755 1,070 3,700 10,900 9,710 3,410 1,430 1,130 1,210 1,210 886
20 802 758 1,060 3,960 11,200 9,460 3,280 1,400 1,130 1,260 1,200 886
21 794 758 1,060 4,220 11,400 9,220 3,150 1,390 1,140 1,280 1,190 892
22 793 763 1,070 4,460 11,600 8,870 3,010 1,370 1,140 1,260 1,160 885
23 789 743 1,100 4,690 11,900 8,640 2,890 1,370 1,130 1,240 1,140 885
24 789 733 1,120 5,020 11,900 8,400 2,790 1,380 1,120 1,220 1,200 873
25 784 734 1,160 5,300 12,000 8,150 2,700 1,380 1,110 1,220 1,240 872
26 764 743 1,220 5,320 12,200 7,850 2,630 1,370 1,120 1,240 1,200 869
27 744 761 1,230 5,320 12,300 7,560 2,550 1,360 1,120 1,250 1,130 896
28 736 757 1,280 5,420 12,200 7,240 2,470 1,330 1,110 1,250 1,110 907
29 729 715 1,330 5,600 12,000 6,970 2,410 1,300 1,090 1,250 1,100 874
30 732   1,390 5,830 12,000 6,870 2,350 1,280 1,090 1,230 1,120 845
31 727   1,460   12,000   2,280 1,270   1,240   822