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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 1,020 1,220 961 792 406 183 98 46 49 122 551 1,220
2 1,140 1,130 898 711 382 204 95 45 56 126 568 1,420
3 1,160 1,060 956 680 386 192 90 46 50 131 589 1,740
4 1,180 1,050 928 698 385 182 86 44 65 154 716 1,490
5 1,290 981 919 698 402 178 82 43 59 133 581 1,330
6 1,440 1,150 856 666 393 168 80 43 55 149 666 1,200
7 1,680 1,220 812 634 363 177 76 44 53 139 752 1,110
8 1,400 1,250 807 647 326 168 76 44 52 152 657 1,040
9 1,360 1,190 987 648 299 169 81 42 56 210 576 1,160
10 1,180 1,080 1,080 633 285 174 79 40 61 225 620 1,240
11 1,180 952 1,010 651 273 166 76 38 67 220 705 1,320
12 1,320 1,000 984 658 265 184 74 38 55 208 902 1,390
13 1,320 1,040 931 660 270 164 74 39 51 203 864 1,390
14 1,380 1,010 944 647 270 156 72 38 54 200 1,100 1,260
15 1,380 1,050 1,020 622 261 152 71 39 64 206 1,030 1,370
16 1,360 1,260 942 585 272 152 68 40 74 222 970 1,360
17 1,290 1,320 878 576 276 147 69 38 92 272 1,020 1,250
18 1,380 1,160 884 520 260 138 66 37 90 291 1,020 1,170
19 1,340 1,180 916 509 251 133 63 37 88 332 1,170 1,190
20 1,290 1,110 865 544 244 125 60 38 101 346 1,240 1,410
21 1,190 1,070 830 489 231 119 57 38 90 367 1,110 1,330
22 1,040 1,100 873 453 223 115 56 41 75 404 1,200 1,240
23 1,130 1,010 879 565 216 113 54 45 90 370 1,220 1,170
24 1,310 1,100 878 519 209 110 53 49 92 354 1,470 1,120
25 1,370 981 809 447 195 113 51 52 82 384 1,410 1,100
26 1,170 911 770 415 188 106 49 53 83 399 1,200 1,160
27 1,150 891 805 434 185 104 49 48 91 470 1,170 1,280
28 1,230 957 800 426 190 101 48 49 112 449 1,100 1,240
29 1,200 1,170 922 408 188 106 48 51 129 463 1,080 1,140
30 1,240   933 413 182 99 46 58 158 495 1,110 1,220
31 1,170   854   181   46 50   583   1,050