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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 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 -> 2019-09-30)

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 14,100 11,300 11,300 10,200 9,820 7,370 3,820 2,940 3,570 6,980 14,500
2 13,900 13,400 11,100 11,100 10,300 9,830 7,070 3,660 2,980 3,580 7,120 15,800
3 14,000 12,800 11,200 10,700 10,400 9,790 6,840 3,590 2,970 3,740 7,480 16,300
4 14,100 12,800 11,100 10,400 10,300 9,830 6,510 3,450 2,970 4,050 7,610 16,400
5 14,600 12,700 11,100 10,500 10,400 10,000 6,290 3,380 3,020 3,980 7,800 15,600
6 14,400 13,100 11,400 10,300 10,700 9,900 6,200 3,370 3,060 3,920 8,380 15,300
7 14,600 13,700 10,800 10,400 10,500 10,200 6,110 3,350 3,010 3,910 8,970 15,000
8 15,000 14,100 10,500 10,400 10,400 10,400 6,020 3,320 2,990 3,950 9,080 14,100
9 14,500 13,600 10,800 10,300 10,200 10,600 6,080 3,280 2,960 4,200 9,070 14,600
10 14,400 13,300 11,200 10,200 10,200 10,500 5,980 3,230 2,990 4,500 8,830 15,600
11 14,000 12,900 11,200 10,000 10,200 10,200 5,790 3,230 3,060 4,570 8,950 15,600
12 14,100 12,800 11,200 10,100 10,300 9,960 5,650 3,210 3,050 4,530 9,240 16,100
13 14,500 12,500 11,300 10,200 10,400 9,780 5,590 3,130 2,940 4,460 10,000 16,200
14 15,100 12,100 11,200 10,400 10,600 9,690 5,560 3,160 2,960 4,470 10,400 15,500
15 15,100 12,100 11,300 10,600 10,600 9,670 5,550 3,110 3,040 4,430 10,500 15,100
16 15,300 12,500 11,200 10,500 10,500 9,770 5,460 3,110 3,080 4,460 10,700 15,200
17 14,900 12,800 10,900 10,500 10,500 9,800 5,310 3,090 3,040 4,430 11,100 14,900
18 14,900 12,400 10,800 10,600 10,600 9,590 5,030 3,040 3,090 4,540 11,600 14,800
19 14,700 12,700 10,900 10,400 10,700 9,390 4,910 2,990 3,040 4,710 11,900 14,600
20 14,500 12,900 10,800 10,500 10,600 9,430 4,810 3,000 3,040 5,070 12,400 15,000
21 14,300 12,700 10,600 10,400 11,000 9,400 4,710 3,000 3,070 5,180 12,500 15,600
22 14,000 13,100 10,800 10,300 10,800 9,090 4,620 2,990 3,050 5,370 12,600 15,700
23 14,200 12,800 10,700 10,400 10,700 8,850 4,510 2,970 3,080 5,760 13,100 16,300
24 14,900 12,900 10,700 10,400 10,500 8,660 4,490 2,980 3,090 5,860 14,800 15,400
25 15,100 12,600 10,800 10,300 10,600 8,470 4,430 2,980 3,050 6,180 16,000 14,500
26 14,400 12,500 10,500 10,000 10,500 8,250 4,320 3,000 3,050 6,410 15,500 14,100
27 13,500 12,400 10,600 9,970 10,600 8,080 4,180 2,990 3,190 6,120 15,000 14,400
28 13,400 12,000 10,600 10,100 10,600 7,890 4,110 2,970 3,260 6,350 14,900 14,600
29 13,500 14,000 10,800 10,200 10,400 7,710 4,050 2,990 3,480 6,800 14,500 14,500
30 13,700   11,000 10,200 10,300 7,570 4,020 2,990 3,450 6,710 14,200 14,800
31 13,900   11,200   9,960   3,940 2,940   6,620   14,000