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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 12020000 CHEHALIS RIVER NEAR DOTY, WA


Lewis County, Washington
Hydrologic Unit Code 17100103
Latitude  46°37'03", Longitude 123°16'35" NAD27
Drainage area 113  square miles
Gage datum 0 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 1939-10-01 -> 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 1,030 1,240 862 800 403 184 98 46 49 123 560 1,240
2 1,150 1,160 866 717 380 206 95 45 57 128 572 1,440
3 1,160 1,090 948 686 387 186 91 46 51 133 595 1,770
4 1,190 1,080 924 689 384 176 86 45 67 157 658 1,510
5 1,300 1,000 920 697 399 168 82 44 60 136 530 1,230
6 1,340 1,170 859 666 388 162 80 43 56 152 642 1,170
7 1,550 1,240 819 627 353 173 76 44 54 142 716 1,100
8 1,370 1,280 816 645 317 165 76 45 54 155 633 1,040
9 1,330 1,220 1,000 646 292 167 81 42 58 216 562 1,170
10 1,160 1,110 1,090 623 280 168 80 40 62 231 612 1,210
11 1,160 972 1,010 644 270 161 77 39 68 219 690 1,270
12 1,260 1,020 978 655 261 181 74 38 56 209 850 1,370
13 1,300 1,070 920 661 266 160 75 39 52 206 844 1,390
14 1,380 1,030 941 651 268 150 73 38 55 203 1,090 1,270
15 1,390 1,070 1,020 627 258 148 72 40 66 210 1,000 1,390
16 1,360 1,290 945 590 267 149 69 40 76 223 963 1,380
17 1,300 1,350 883 581 273 144 69 39 94 272 1,030 1,270
18 1,390 1,190 893 518 259 136 67 37 91 295 1,040 1,180
19 1,350 1,210 926 498 250 132 63 38 89 339 1,190 1,200
20 1,300 1,140 874 536 244 124 60 38 103 354 1,260 1,430
21 1,190 1,090 837 478 231 119 58 38 92 376 1,130 1,340
22 1,030 1,120 883 441 223 115 57 42 77 413 1,230 1,250
23 1,130 1,030 890 561 217 112 55 46 92 378 1,250 1,160
24 1,320 1,120 891 514 210 110 53 50 95 361 1,510 1,120
25 1,380 1,000 820 443 196 114 51 53 83 385 1,450 1,090
26 1,180 928 781 409 189 107 50 54 83 389 1,230 1,130
27 1,140 900 815 432 186 104 50 49 88 466 1,200 1,220
28 1,230 856 807 423 190 101 49 50 109 432 1,120 1,210
29 1,210 988 929 405 187 107 48 52 129 444 1,100 1,140
30 1,260   945 409 181 99 46 60 160 497 1,120 1,220
31 1,180   866   181   46 51   588   1,050