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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 4,490 5,670 9,100 12,900 18,000 16,400 4,750 1,900 1,320 1,750 3,100 4,570
2 4,400 5,870 9,030 12,900 17,800 15,200 4,420 1,860 1,440 1,640 3,070 4,530
3 4,370 6,140 9,390 13,100 17,900 14,900 4,350 1,840 1,290 1,640 3,190 4,290
4 4,500 6,240 10,000 13,100 18,100 14,600 4,150 1,770 1,180 1,860 3,250 4,270
5 4,460 6,500 10,100 13,200 18,200 14,300 4,110 1,720 1,170 1,930 3,220 4,270
6 4,370 6,610 10,100 13,300 18,400 13,700 3,890 1,680 1,210 2,030 3,320 4,430
7 4,260 7,220 9,900 13,500 18,500 13,100 3,780 1,650 1,360 2,180 3,290 4,540
8 4,250 7,380 9,860 13,800 18,900 12,700 3,790 1,570 1,390 2,100 3,430 4,340
9 4,600 7,540 9,900 14,100 19,600 12,200 3,670 1,520 1,550 2,020 3,470 4,290
10 5,020 8,050 10,000 14,600 19,900 11,800 3,460 1,570 1,420 1,950 3,460 4,430
11 4,960 7,950 9,910 14,700 19,800 11,200 3,510 1,630 1,320 2,120 3,390 4,410
12 4,890 7,800 9,570 15,000 19,700 10,600 3,290 1,650 1,290 2,170 3,550 4,190
13 5,440 7,780 9,460 15,200 19,800 10,300 2,940 1,560 1,460 2,230 3,370 4,330
14 5,680 7,700 9,790 15,300 20,000 10,200 2,530 1,450 1,390 2,400 3,480 4,410
15 5,520 7,550 10,000 15,200 20,400 10,100 2,400 1,550 1,440 2,340 3,690 4,370
16 5,460 7,960 10,300 15,400 20,700 9,730 2,310 1,490 1,510 2,350 3,700 4,380
17 5,520 8,500 10,800 15,500 20,900 9,570 2,190 1,370 1,450 2,260 3,670 4,370
18 5,460 8,340 11,500 15,600 21,100 9,310 2,120 1,360 1,410 2,200 3,750 4,400
19 5,480 8,250 11,900 15,800 21,400 9,030 2,030 1,390 1,330 2,300 3,770 4,570
20 5,470 7,990 12,200 16,000 21,300 8,800 2,120 1,420 1,530 2,420 3,590 4,800
21 5,680 8,020 12,500 16,400 21,000 8,610 2,210 1,270 1,550 2,440 3,590 4,640
22 5,630 8,000 12,700 16,700 20,400 8,400 2,130 1,330 1,640 2,510 3,920 4,580
23 5,690 8,320 13,100 17,000 20,100 8,100 2,040 1,330 1,680 2,410 3,960 4,520
24 6,240 8,380 13,200 17,200 19,500 7,890 1,850 1,360 1,710 2,570 4,000 4,480
25 6,500 8,710 13,300 17,400 18,900 7,630 1,890 1,490 1,600 2,690 4,030 4,380
26 6,260 8,970 13,400 17,600 18,400 7,170 1,860 1,280 1,570 2,730 4,050 4,310
27 5,780 8,680 13,300 17,900 18,200 6,870 1,840 1,240 1,820 2,750 3,920 4,270
28 5,890 8,520 13,200 17,900 17,900 6,400 1,850 1,150 1,760 2,840 4,220 4,690
29 5,790 7,550 13,100 18,000 17,600 5,890 1,910 1,190 1,780 2,860 4,420 4,580
30 5,690   13,100 18,000 17,000 5,370 1,880 1,330 1,690 2,780 4,410 4,880
31 5,650   12,900   16,700   1,850 1,280   2,940   4,730