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USGS Daily Statistics for the Nation

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 -> 2023-09-30)

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 1,220 942 794 404 185 98 46 49 122 556 1,240
2 1,140 1,140 888 713 381 206 95 45 57 126 565 1,420
3 1,170 1,070 952 683 386 186 91 46 50 131 587 1,740
4 1,190 1,060 925 701 383 176 87 45 66 155 693 1,490
5 1,300 987 919 702 399 172 83 44 59 134 569 1,220
6 1,440 1,150 856 670 389 165 80 43 56 149 660 1,150
7 1,680 1,230 814 637 358 176 76 44 53 140 734 1,090
8 1,410 1,260 809 651 322 167 76 45 53 153 649 1,030
9 1,340 1,200 991 651 296 169 81 42 57 212 573 1,160
10 1,170 1,090 1,080 636 283 174 80 40 61 226 619 1,220
11 1,170 959 998 655 272 167 77 39 67 215 700 1,320
12 1,320 1,010 967 662 265 186 74 38 55 205 899 1,390
13 1,330 1,050 920 664 269 165 75 39 52 203 863 1,390
14 1,390 1,020 940 652 270 157 73 38 54 199 1,100 1,260
15 1,390 1,050 1,020 626 261 153 71 40 65 206 1,030 1,380
16 1,360 1,270 943 589 273 152 69 40 74 219 975 1,370
17 1,300 1,320 879 581 277 147 69 39 93 267 1,030 1,260
18 1,390 1,170 887 524 263 139 67 37 91 290 1,030 1,180
19 1,340 1,190 920 513 253 134 63 37 88 332 1,180 1,200
20 1,290 1,120 869 549 246 125 60 38 102 347 1,250 1,420
21 1,190 1,080 834 493 233 120 58 38 91 369 1,120 1,340
22 1,030 1,110 878 456 224 116 57 42 75 406 1,210 1,250
23 1,120 1,010 884 570 217 113 55 45 91 373 1,230 1,180
24 1,310 1,110 884 523 211 111 53 49 93 356 1,480 1,130
25 1,360 986 814 450 196 114 51 52 82 385 1,430 1,110
26 1,160 913 774 415 189 107 50 53 82 401 1,210 1,160
27 1,130 894 807 435 186 104 50 48 87 473 1,180 1,290
28 1,210 939 798 425 192 101 49 50 109 452 1,110 1,250
29 1,190 988 917 406 190 107 48 51 128 467 1,090 1,150
30 1,240   931 410 183 99 46 59 158 500 1,120 1,230
31 1,170   855   183   46 50   588   1,050