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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 -> 2024-09-30)

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 4,970 5,510 7,000 11,000 17,000 14,700 3,780 1,070 844 1,400 2,170 4,140
2 4,970 5,600 7,020 11,200 16,900 14,300 3,510 1,050 872 1,420 2,180 4,200
3 4,940 5,610 7,010 11,400 16,900 14,000 3,260 1,060 904 1,450 2,200 4,290
4 4,850 5,620 7,030 11,700 17,000 13,700 3,090 1,010 903 1,530 2,240 4,510
5 4,860 5,600 7,060 11,800 17,000 13,300 3,010 976 895 1,570 2,330 4,600
6 4,880 5,560 7,070 12,000 17,100 12,800 2,930 953 912 1,580 2,420 4,650
7 4,860 5,600 7,100 12,200 17,100 12,500 2,840 924 944 1,590 2,490 4,570
8 4,860 5,680 7,110 12,400 17,200 12,200 2,670 893 1,000 1,620 2,530 4,480
9 4,840 5,820 7,160 12,700 17,300 11,800 2,520 904 1,030 1,620 2,530 4,380
10 4,830 6,030 7,180 12,900 17,300 11,300 2,410 890 1,040 1,610 2,520 4,360
11 4,850 6,140 7,300 13,200 17,300 10,900 2,330 903 1,050 1,680 2,500 4,460
12 4,870 6,200 7,490 13,400 17,300 10,500 2,210 896 1,090 1,730 2,510 4,640
13 4,880 6,230 7,610 13,600 17,300 10,200 2,070 884 1,150 1,730 2,580 4,770
14 4,890 6,210 7,800 13,900 17,300 9,740 2,030 863 1,160 1,750 2,700 4,790
15 4,940 6,240 7,950 14,200 17,400 9,360 1,980 839 1,180 1,760 2,800 4,740
16 5,070 6,290 8,170 14,500 17,400 9,160 1,930 830 1,230 1,750 2,760 4,710
17 5,170 6,390 8,330 14,700 17,400 8,900 1,800 806 1,250 1,730 2,810 4,820
18 5,260 6,450 8,510 14,900 17,500 8,610 1,710 812 1,260 1,750 2,850 4,900
19 5,420 6,420 8,670 15,100 17,600 8,110 1,640 809 1,280 1,750 2,890 4,900
20 5,500 6,560 8,840 15,400 17,500 7,750 1,580 817 1,290 1,790 2,930 4,890
21 5,480 6,730 9,000 15,700 17,400 7,410 1,550 830 1,300 1,880 3,070 4,980
22 5,430 6,880 9,180 15,900 17,200 7,140 1,520 811 1,320 1,920 3,200 5,030
23 5,480 7,000 9,360 16,100 17,100 6,900 1,450 851 1,360 1,930 3,310 5,100
24 5,540 7,020 9,520 16,300 16,800 6,460 1,390 864 1,350 1,960 3,480 5,160
25 5,510 7,050 9,690 16,500 16,600 6,120 1,330 873 1,350 2,000 3,590 5,130
26 5,550 7,050 9,880 16,600 16,400 5,630 1,300 901 1,370 2,020 3,740 5,100
27 5,520 7,060 10,000 16,700 16,300 5,290 1,220 915 1,370 2,020 3,910 5,050
28 5,540 7,000 10,100 16,800 16,000 4,900 1,180 873 1,380 2,050 3,960 5,060
29 5,550 7,380 10,300 16,900 15,700 4,460 1,180 840 1,380 2,080 3,950 5,120
30 5,510   10,500 16,900 15,300 4,100 1,170 833 1,420 2,180 3,990 5,140
31 5,420   10,700   15,000   1,110 823   2,210   5,070