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USGS Daily Statistics for Idaho

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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 12419000 SPOKANE RIVER NR POST FALLS ID


Kootenai County, Idaho
Hydrologic Unit Code 17010305
Latitude  47°42'11", Longitude 116°58'40" NAD83
Drainage area 3,830  square miles
Gage datum 2,050 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 1912-10-01 -> 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 5,040 5,530 7,160 11,100 17,200 15,000 3,870 1,080 862 1,400 2,180 4,200
2 5,050 5,620 7,140 11,300 17,200 14,600 3,580 1,060 891 1,430 2,180 4,250
3 5,020 5,620 7,090 11,600 17,200 14,300 3,330 1,080 920 1,460 2,200 4,340
4 4,920 5,620 7,080 11,800 17,200 13,900 3,150 1,020 917 1,530 2,240 4,570
5 4,930 5,600 7,090 12,000 17,200 13,500 3,070 993 906 1,580 2,330 4,670
6 4,950 5,560 7,100 12,200 17,200 13,100 2,990 969 920 1,580 2,410 4,720
7 4,920 5,610 7,120 12,400 17,300 12,700 2,900 939 948 1,590 2,480 4,640
8 4,930 5,690 7,140 12,600 17,300 12,400 2,720 908 1,010 1,620 2,520 4,540
9 4,900 5,840 7,210 12,800 17,400 12,000 2,550 921 1,040 1,620 2,520 4,430
10 4,890 6,060 7,230 13,000 17,400 11,500 2,430 906 1,050 1,620 2,520 4,420
11 4,910 6,190 7,370 13,300 17,500 11,200 2,360 917 1,060 1,690 2,490 4,520
12 4,930 6,260 7,580 13,500 17,400 10,700 2,250 903 1,090 1,740 2,500 4,720
13 4,930 6,290 7,720 13,700 17,500 10,400 2,120 890 1,150 1,740 2,560 4,850
14 4,920 6,280 7,920 14,000 17,500 9,850 2,080 869 1,170 1,760 2,690 4,870
15 4,960 6,310 8,090 14,400 17,500 9,450 2,020 848 1,190 1,760 2,790 4,820
16 5,090 6,360 8,310 14,700 17,500 9,240 1,980 843 1,230 1,760 2,750 4,780
17 5,200 6,470 8,470 14,900 17,600 8,980 1,830 819 1,260 1,730 2,800 4,900
18 5,290 6,540 8,660 15,200 17,700 8,690 1,750 825 1,270 1,750 2,840 4,980
19 5,460 6,520 8,820 15,400 17,700 8,180 1,680 821 1,280 1,760 2,880 4,980
20 5,550 6,670 8,990 15,700 17,600 7,820 1,620 830 1,300 1,800 2,940 4,970
21 5,530 6,850 9,140 16,000 17,500 7,470 1,590 844 1,310 1,880 3,080 5,060
22 5,480 7,050 9,320 16,200 17,400 7,190 1,560 824 1,330 1,920 3,220 5,110
23 5,540 7,180 9,490 16,400 17,300 6,940 1,480 867 1,370 1,920 3,330 5,190
24 5,590 7,200 9,650 16,600 17,200 6,510 1,410 881 1,360 1,940 3,500 5,250
25 5,560 7,240 9,810 16,800 16,900 6,160 1,350 891 1,360 1,980 3,620 5,210
26 5,610 7,240 9,990 16,900 16,800 5,680 1,330 920 1,380 2,000 3,780 5,190
27 5,580 7,250 10,100 17,000 16,600 5,340 1,240 935 1,380 2,000 3,950 5,140
28 5,590 7,170 10,200 17,100 16,300 4,990 1,200 891 1,380 2,050 4,010 5,150
29 5,620 7,460 10,400 17,100 16,000 4,560 1,200 856 1,390 2,080 3,990 5,200
30 5,540   10,600 17,200 15,600 4,200 1,190 849 1,430 2,190 4,040 5,220
31 5,440   10,800   15,300   1,130 840   2,210   5,150