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USGS Daily Statistics for Washington

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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 12426000 SPOKANE RIVER BELOW NINE MILE DAM AT SPOKANE, WA


Spokane County, Washington
Hydrologic Unit Code 17010307
Latitude  47°46'50", Longitude 117°32'40" NAD27
Drainage area 5,220  square miles
Gage datum 1,550 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 1947-10-01 -> 2025-09-30)

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 4,720 5,420 9,100 12,900 18,000 16,400 4,750 1,900 1,320 1,750 3,030 4,500
2 4,610 5,600 9,040 12,900 17,800 15,200 4,420 1,860 1,440 1,640 3,010 4,460
3 4,560 5,840 9,390 13,100 17,900 14,900 4,350 1,840 1,290 1,640 3,120 4,240
4 4,710 5,920 9,990 13,100 18,100 14,600 4,150 1,770 1,180 1,860 3,180 4,220
5 4,750 6,150 10,100 13,200 18,200 14,300 4,110 1,720 1,170 1,930 3,170 4,220
6 4,700 6,260 10,000 13,300 18,400 13,700 3,890 1,680 1,210 2,030 3,270 4,370
7 4,560 6,810 9,870 13,500 18,500 13,100 3,780 1,650 1,360 2,180 3,260 4,470
8 4,510 6,940 9,870 13,800 18,900 12,700 3,790 1,570 1,390 2,100 3,420 4,290
9 4,800 7,090 9,920 14,100 19,600 12,200 3,670 1,520 1,550 2,020 3,450 4,250
10 5,160 7,550 10,100 14,600 19,900 11,800 3,460 1,570 1,420 1,950 3,450 4,370
11 5,080 7,450 9,940 14,700 19,800 11,200 3,510 1,630 1,320 2,120 3,390 4,350
12 5,000 7,310 9,620 15,000 19,700 10,600 3,290 1,650 1,290 2,170 3,540 4,150
13 5,480 7,300 9,510 15,200 19,800 10,300 2,940 1,560 1,460 2,230 3,380 4,270
14 5,660 7,210 9,820 15,300 20,000 10,200 2,530 1,450 1,390 2,400 3,480 4,350
15 5,510 7,070 10,100 15,200 20,400 10,100 2,400 1,550 1,440 2,340 3,640 4,310
16 5,430 7,450 10,300 15,400 20,700 9,730 2,310 1,490 1,510 2,350 3,640 4,320
17 5,470 7,930 10,800 15,500 20,900 9,570 2,190 1,370 1,450 2,260 3,620 4,300
18 5,400 7,790 11,400 15,600 21,100 9,310 2,120 1,360 1,410 2,200 3,690 4,330
19 5,400 7,710 11,900 15,800 21,400 9,030 2,030 1,390 1,330 2,300 3,710 4,470
20 5,380 7,470 12,200 16,000 21,300 8,800 2,120 1,420 1,530 2,420 3,550 4,680
21 5,540 7,500 12,500 16,400 21,000 8,610 2,210 1,270 1,550 2,440 3,550 4,550
22 5,480 7,470 12,700 16,700 20,400 8,400 2,130 1,330 1,640 2,510 3,880 4,490
23 5,530 8,090 13,100 17,000 20,100 8,100 2,040 1,330 1,680 2,410 3,930 4,440
24 6,010 8,770 13,200 17,200 19,500 7,890 1,850 1,360 1,710 2,570 3,980 4,430
25 6,230 8,700 13,300 17,400 18,900 7,630 1,890 1,490 1,600 2,690 4,010 4,350
26 6,000 8,790 13,400 17,600 18,400 7,170 1,860 1,280 1,570 2,730 4,020 4,320
27 5,560 8,600 13,300 17,900 18,200 6,870 1,840 1,240 1,820 2,750 3,910 4,310
28 5,650 8,550 13,200 17,900 17,900 6,400 1,850 1,150 1,760 2,840 4,180 4,740
29 5,540 7,550 13,100 18,000 17,600 5,890 1,910 1,190 1,780 2,800 4,360 4,670
30 5,450   13,100 18,000 17,000 5,370 1,880 1,330 1,690 2,730 4,350 5,020
31 5,420   12,900   16,700   1,850 1,280   2,890   4,950