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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 -> 2024-09-30)

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 1,220 942 794 404 184 98 46 49 122 551 1,220
2 1,140 1,140 888 713 381 204 95 45 56 126 568 1,420
3 1,170 1,070 952 683 386 185 90 46 50 131 589 1,740
4 1,190 1,060 925 701 383 175 86 44 65 154 716 1,490
5 1,300 987 919 702 399 170 82 43 59 133 581 1,330
6 1,440 1,150 856 670 389 164 80 43 55 149 666 1,200
7 1,680 1,230 814 637 358 175 76 44 53 139 752 1,110
8 1,410 1,260 809 651 322 166 76 44 52 152 657 1,040
9 1,340 1,200 991 651 296 168 81 42 56 210 576 1,160
10 1,170 1,090 1,080 636 283 173 79 40 61 225 620 1,240
11 1,170 959 998 655 272 166 77 38 67 220 705 1,320
12 1,320 1,010 967 662 265 184 74 38 55 208 902 1,390
13 1,330 1,050 920 664 269 164 74 39 51 203 864 1,390
14 1,390 1,020 940 652 270 156 72 38 54 200 1,100 1,260
15 1,390 1,050 1,020 626 261 152 71 39 64 206 1,030 1,370
16 1,360 1,270 943 589 273 151 68 40 74 222 970 1,360
17 1,300 1,320 879 581 277 146 69 38 92 272 1,020 1,250
18 1,390 1,170 887 524 261 138 66 37 90 291 1,020 1,180
19 1,340 1,190 920 513 251 133 63 37 88 332 1,170 1,200
20 1,290 1,120 869 549 244 125 60 38 101 346 1,240 1,420
21 1,190 1,080 834 493 231 119 57 38 90 367 1,110 1,340
22 1,030 1,110 878 456 223 115 56 41 75 404 1,200 1,250
23 1,120 1,010 884 570 216 113 54 45 90 370 1,220 1,180
24 1,310 1,110 884 523 209 110 53 49 92 354 1,470 1,130
25 1,360 986 814 450 195 113 51 52 82 384 1,410 1,110
26 1,160 913 774 415 188 106 49 53 83 399 1,200 1,160
27 1,130 894 807 435 185 103 49 48 91 470 1,170 1,290
28 1,210 939 798 425 191 101 48 49 112 449 1,100 1,250
29 1,190 988 917 406 188 106 48 51 129 463 1,080 1,150
30 1,240   931 410 182 99 46 58 158 495 1,110 1,230
31 1,170   855   181   46 50   583   1,050