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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 14238000 COWLITZ RIVER BELOW MAYFIELD DAM, WA


Lewis County, Washington
Hydrologic Unit Code 17080005
Latitude  46°30'38", Longitude 122°36'54" NAD27
Drainage area 1,400  square miles
Gage datum 226.60 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 1933-10-01 -> 2022-09-30)

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 8,590 9,040 7,040 6,440 6,790 7,220 5,660 3,110 2,520 2,930 4,860 9,990
2 8,820 8,600 6,930 6,580 6,900 7,110 5,420 3,030 2,570 2,950 4,820 10,200
3 8,830 8,280 6,920 6,410 6,910 7,170 5,210 2,960 2,590 3,100 5,000 10,300
4 8,960 8,640 6,880 6,410 6,970 7,210 4,930 2,880 2,620 3,060 5,190 10,600
5 9,040 8,630 6,860 6,380 7,060 7,270 4,890 2,840 2,670 3,090 5,480 10,400
6 8,830 8,670 6,760 6,440 7,170 7,220 4,880 2,830 2,630 3,090 5,730 9,890
7 9,150 8,950 6,580 6,530 7,110 7,330 4,840 2,830 2,600 3,150 5,990 9,820
8 9,110 8,970 6,490 6,480 7,070 7,420 4,860 2,790 2,670 3,190 6,340 9,520
9 8,940 8,820 6,620 6,480 7,030 7,580 4,870 2,760 2,650 3,340 6,390 9,640
10 8,950 8,900 6,800 6,500 7,050 7,590 4,770 2,770 2,660 3,560 6,320 9,940
11 8,700 8,490 6,800 6,460 7,080 7,490 4,620 2,800 2,670 3,610 6,430 10,200
12 8,940 8,260 6,850 6,440 7,140 7,360 4,560 2,760 2,620 3,580 6,660 10,500
13 9,060 8,030 6,840 6,370 7,240 7,280 4,500 2,740 2,550 3,560 6,810 10,600
14 9,110 7,850 6,770 6,490 7,310 7,170 4,480 2,780 2,570 3,530 6,850 10,200
15 9,360 7,850 6,820 6,640 7,210 7,190 4,480 2,720 2,640 3,480 7,080 10,100
16 9,530 7,900 6,840 6,690 7,170 7,270 4,340 2,750 2,640 3,500 7,150 10,100
17 9,350 7,840 6,810 6,720 7,210 7,310 4,140 2,730 2,610 3,480 7,230 9,670
18 9,200 7,750 6,680 6,920 7,340 7,110 3,980 2,670 2,620 3,590 7,490 9,460
19 9,090 7,880 6,760 6,890 7,340 7,030 3,920 2,660 2,560 3,660 7,700 9,400
20 9,070 7,880 6,630 6,940 7,500 7,140 3,880 2,640 2,560 3,850 7,990 9,620
21 9,090 7,890 6,520 7,010 7,660 6,970 3,800 2,650 2,590 3,960 8,480 9,520
22 9,020 8,170 6,560 7,040 7,590 6,780 3,750 2,620 2,580 4,010 8,660 9,590
23 9,060 8,060 6,500 6,890 7,520 6,640 3,670 2,610 2,590 4,240 9,130 9,850
24 9,320 8,220 6,410 6,820 7,430 6,550 3,650 2,610 2,580 4,320 9,980 9,470
25 9,500 8,030 6,430 6,730 7,440 6,400 3,590 2,590 2,600 4,610 9,980 8,950
26 9,200 7,960 6,360 6,630 7,390 6,270 3,480 2,580 2,690 4,720 9,910 8,700
27 8,840 7,750 6,360 6,580 7,560 6,180 3,450 2,580 2,750 4,560 10,100 8,880
28 8,860 7,530 6,280 6,660 7,570 6,080 3,440 2,600 2,760 4,710 10,300 9,020
29 9,060 7,810 6,250 6,790 7,490 5,920 3,410 2,610 2,740 4,740 10,000 9,150
30 9,010   6,270 6,820 7,400 5,880 3,400 2,570 2,810 4,730 9,780 9,160
31 9,070   6,240   7,310   3,320 2,560   4,730   8,930