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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 near Post Falls, ID


Kootenai County, Idaho
Hydrologic Unit Code 17010305
Latitude  47°42'11", Longitude 116°58'37" NAD27
Drainage area 3,840  square miles
Gage datum 2,003 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 -> 2022-09-30)

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 4,990 5,530 7,020 11,000 17,100 14,900 3,820 1,070 852 1,400 2,180 4,170
2 4,990 5,620 7,030 11,300 17,000 14,500 3,540 1,050 880 1,430 2,180 4,220
3 4,960 5,620 7,030 11,500 17,000 14,200 3,290 1,070 911 1,450 2,200 4,310
4 4,870 5,630 7,040 11,700 17,100 13,800 3,110 1,020 909 1,530 2,240 4,530
5 4,890 5,610 7,080 11,900 17,100 13,400 3,040 985 899 1,570 2,330 4,630
6 4,900 5,560 7,100 12,100 17,100 12,900 2,950 962 912 1,580 2,420 4,680
7 4,880 5,610 7,120 12,300 17,200 12,600 2,870 934 943 1,590 2,490 4,600
8 4,890 5,690 7,140 12,500 17,200 12,200 2,690 902 1,000 1,620 2,520 4,500
9 4,870 5,830 7,200 12,800 17,300 11,800 2,530 913 1,030 1,620 2,520 4,400
10 4,860 6,040 7,220 13,000 17,400 11,300 2,410 898 1,050 1,610 2,520 4,380
11 4,880 6,160 7,340 13,200 17,400 11,000 2,340 908 1,050 1,680 2,500 4,490
12 4,910 6,220 7,530 13,500 17,400 10,600 2,220 896 1,090 1,730 2,510 4,670
13 4,920 6,250 7,660 13,700 17,400 10,200 2,090 884 1,140 1,730 2,580 4,800
14 4,920 6,230 7,850 14,000 17,400 9,720 2,050 863 1,160 1,750 2,710 4,820
15 4,980 6,260 8,010 14,300 17,400 9,340 1,990 842 1,180 1,760 2,800 4,780
16 5,110 6,300 8,230 14,600 17,400 9,130 1,950 836 1,230 1,750 2,770 4,740
17 5,210 6,410 8,380 14,800 17,500 8,860 1,810 812 1,250 1,730 2,810 4,860
18 5,300 6,480 8,570 15,000 17,600 8,560 1,730 819 1,260 1,750 2,850 4,930
19 5,470 6,450 8,730 15,200 17,700 8,060 1,660 815 1,280 1,760 2,890 4,930
20 5,540 6,590 8,900 15,500 17,500 7,700 1,600 823 1,290 1,800 2,940 4,920
21 5,530 6,760 9,050 15,800 17,500 7,360 1,570 837 1,310 1,880 3,070 5,010
22 5,480 6,920 9,230 16,000 17,300 7,090 1,540 818 1,320 1,920 3,210 5,060
23 5,530 7,040 9,400 16,300 17,200 6,860 1,460 859 1,370 1,930 3,330 5,140
24 5,580 7,060 9,560 16,500 17,000 6,420 1,400 873 1,350 1,970 3,490 5,200
25 5,550 7,100 9,730 16,600 16,800 6,080 1,340 882 1,350 2,000 3,610 5,170
26 5,600 7,100 9,920 16,800 16,600 5,600 1,310 911 1,370 2,020 3,760 5,140
27 5,570 7,100 10,100 16,900 16,500 5,270 1,220 925 1,370 2,020 3,930 5,090
28 5,580 7,030 10,200 17,000 16,200 4,930 1,190 882 1,380 2,060 3,980 5,100
29 5,580 7,320 10,400 17,000 15,900 4,510 1,190 849 1,390 2,090 3,970 5,140
30 5,540   10,600 17,100 15,500 4,150 1,180 841 1,430 2,190 4,010 5,160
31 5,440   10,800   15,200   1,120 831   2,220   5,090