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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 301.1 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 77 - 78 years of record in, ft3/s   (Calculation Period 1939-10-01 -> 2017-09-30)

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 1,220 873 808 413 188 100 47 51 126 571 1,280
2 1,130 1,150 882 727 389 211 97 46 59 131 581 1,490
3 1,080 1,090 961 699 394 191 92 47 52 137 610 1,850
4 1,140 1,090 930 705 392 179 88 45 69 163 670 1,570
5 1,290 994 937 715 409 171 84 45 62 140 520 1,270
6 1,280 1,180 876 682 398 165 81 44 58 157 638 1,210
7 1,500 1,260 835 633 362 177 77 45 56 146 728 1,150
8 1,360 1,290 828 602 325 168 77 46 55 160 647 1,090
9 1,340 1,130 1,010 627 299 169 83 43 58 224 575 1,220
10 1,150 1,080 1,080 617 286 170 81 41 63 236 629 1,270
11 1,120 969 1,020 642 275 163 78 39 70 221 715 1,300
12 1,140 1,030 994 651 266 185 75 39 57 202 883 1,400
13 1,200 1,090 937 654 269 163 76 40 53 204 846 1,420
14 1,380 1,060 955 618 270 152 74 39 56 203 1,090 1,300
15 1,410 1,080 1,040 585 260 149 73 40 67 213 964 1,450
16 1,400 1,260 961 565 267 145 70 41 76 229 939 1,430
17 1,340 1,350 901 565 272 143 71 39 95 279 1,020 1,300
18 1,390 1,200 891 509 257 136 68 38 88 297 1,040 1,150
19 1,320 1,230 938 495 249 132 64 38 88 311 1,210 1,160
20 1,290 1,150 888 541 244 124 61 39 105 346 1,260 1,250
21 1,200 1,100 855 482 232 119 59 39 93 359 1,130 1,240
22 1,020 1,110 904 446 224 116 58 43 77 356 1,210 1,210
23 1,090 1,020 913 574 218 114 56 47 92 372 1,220 1,150
24 1,270 1,140 906 521 212 111 54 51 88 362 1,460 1,120
25 1,370 1,020 830 445 198 115 52 55 77 392 1,430 1,100
26 1,180 938 790 411 191 108 50 55 79 392 1,230 1,160
27 1,130 914 823 436 188 105 51 50 87 474 1,180 1,250
28 1,200 871 812 430 193 102 49 52 111 433 1,110 1,240
29 1,200 1,010 930 413 190 108 49 53 132 449 1,100 1,130
30 1,270   941 417 184 101 47 62 165 510 1,140 1,200
31 1,190   869   184   47 52   604   1,040