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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 -> 2020-09-30)

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 1,200 866 800 409 185 98 46 50 123 571 1,270
2 1,110 1,130 873 718 386 207 95 46 58 128 583 1,470
3 1,070 1,070 958 689 390 187 91 46 51 134 607 1,810
4 1,130 1,070 934 694 388 177 86 45 67 159 666 1,550
5 1,270 994 931 704 405 169 82 44 61 137 525 1,260
6 1,260 1,160 869 673 393 163 80 43 57 153 642 1,190
7 1,470 1,230 828 634 358 174 76 44 55 143 722 1,130
8 1,340 1,260 825 653 321 166 76 45 54 157 640 1,060
9 1,320 1,210 1,020 654 296 167 81 43 58 220 570 1,190
10 1,150 1,110 1,110 631 284 167 80 40 63 232 622 1,240
11 1,130 976 1,030 654 273 161 77 39 69 217 701 1,290
12 1,160 1,030 995 665 265 182 74 39 57 199 866 1,390
13 1,200 1,080 935 672 269 160 75 39 53 200 840 1,400
14 1,360 1,040 957 662 271 150 73 38 56 199 1,090 1,280
15 1,390 1,080 1,040 637 261 147 72 40 66 209 1,000 1,420
16 1,370 1,300 962 600 270 147 69 41 76 224 965 1,400
17 1,310 1,350 899 591 275 143 70 39 95 273 1,030 1,280
18 1,410 1,190 909 526 259 135 67 38 92 291 1,040 1,190
19 1,360 1,220 943 506 251 131 63 38 90 319 1,190 1,190
20 1,310 1,140 885 546 244 123 60 39 104 347 1,270 1,270
21 1,200 1,100 848 486 232 118 58 38 93 375 1,140 1,250
22 1,030 1,100 893 448 223 114 57 42 77 408 1,240 1,200
23 1,100 1,010 901 571 217 112 55 46 92 377 1,270 1,150
24 1,290 1,120 901 523 211 110 54 50 87 361 1,540 1,120
25 1,370 1,000 828 449 196 114 51 53 77 388 1,480 1,090
26 1,180 927 789 415 189 107 50 54 79 393 1,250 1,140
27 1,140 901 826 438 186 104 50 49 86 473 1,220 1,230
28 1,200 859 815 430 191 101 49 51 108 439 1,140 1,220
29 1,200 1,010 930 412 187 107 48 52 129 452 1,120 1,150
30 1,260   939 415 182 99 46 60 160 506 1,140 1,230
31 1,170   862   182   46 51   599   1,050