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USGS Daily Statistics for the Nation

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 14243000 COWLITZ RIVER AT CASTLE ROCK, WA


Cowlitz County, Washington
Hydrologic Unit Code 17080005
Latitude  46°16'30", Longitude 122°54'48" NAD27
Drainage area 2,238  square miles
Gage datum 0.00 feet above NAVD88
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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 1926-10-01 -> 2021-09-30)

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 13,300 14,300 11,300 11,200 10,100 9,750 7,300 3,810 2,940 3,580 6,920 14,300
2 13,900 13,600 11,200 11,100 10,100 9,760 7,000 3,640 2,980 3,600 7,060 15,600
3 14,200 12,900 11,200 10,600 10,300 9,720 6,770 3,570 2,990 3,750 7,410 16,100
4 14,100 12,900 11,100 10,300 10,200 9,750 6,440 3,450 3,000 4,050 7,550 16,200
5 14,600 12,800 11,100 10,400 10,400 9,910 6,230 3,390 3,070 3,990 7,740 15,400
6 14,500 13,300 11,400 10,300 10,600 9,800 6,140 3,390 3,090 3,930 8,330 15,100
7 14,800 14,100 10,800 10,300 10,400 10,100 6,050 3,360 3,020 3,910 8,910 14,800
8 15,200 14,400 10,500 10,300 10,300 10,300 5,960 3,310 3,000 3,960 9,000 13,900
9 14,600 13,800 10,800 10,200 10,200 10,500 6,020 3,270 2,990 4,210 8,980 14,400
10 14,500 13,500 11,200 10,100 10,200 10,400 5,920 3,230 3,020 4,500 8,760 15,400
11 14,100 13,000 11,200 10,000 10,200 10,200 5,730 3,230 3,080 4,580 8,880 15,400
12 14,200 12,900 11,200 10,100 10,200 9,880 5,600 3,200 3,050 4,550 9,160 15,900
13 14,600 12,600 11,300 10,200 10,300 9,690 5,540 3,130 2,940 4,480 9,950 16,000
14 15,100 12,200 11,100 10,400 10,500 9,630 5,510 3,160 2,960 4,480 10,300 15,400
15 15,200 12,200 11,200 10,500 10,500 9,610 5,500 3,130 3,040 4,430 10,500 15,000
16 15,300 12,600 11,200 10,400 10,400 9,720 5,410 3,130 3,090 4,460 10,700 15,000
17 14,900 12,900 10,900 10,400 10,400 9,720 5,270 3,130 3,040 4,440 11,000 14,800
18 15,000 12,500 10,800 10,500 10,500 9,510 4,990 3,090 3,100 4,550 11,600 14,700
19 14,700 12,700 10,900 10,300 10,600 9,300 4,880 3,030 3,050 4,760 11,900 14,500
20 14,600 12,900 10,700 10,400 10,500 9,330 4,790 3,020 3,040 5,110 12,300 15,100
21 14,400 12,700 10,500 10,300 10,800 9,300 4,690 3,010 3,070 5,200 12,500 15,800
22 14,100 13,100 10,700 10,300 10,700 9,020 4,590 3,000 3,050 5,380 12,500 15,800
23 14,300 12,900 10,700 10,300 10,600 8,780 4,480 2,980 3,080 5,760 13,000 16,200
24 15,100 13,000 10,600 10,400 10,400 8,590 4,450 3,000 3,100 5,850 14,600 15,400
25 15,200 12,600 10,700 10,200 10,400 8,400 4,390 3,000 3,070 6,160 15,900 14,400
26 14,500 12,500 10,400 9,940 10,400 8,190 4,290 3,000 3,070 6,370 15,400 14,000
27 13,600 12,400 10,500 9,900 10,500 8,020 4,160 2,990 3,210 6,090 14,800 14,200
28 13,600 12,100 10,600 10,000 10,500 7,830 4,110 2,970 3,270 6,310 14,700 14,500
29 13,700 14,100 10,800 10,100 10,400 7,650 4,050 3,000 3,490 6,750 14,300 14,400
30 13,900   11,000 10,100 10,200 7,510 4,020 2,990 3,460 6,660 14,000 14,700
31 14,100   11,200   9,890   3,950 2,940   6,570   14,000