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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 1,210 870 812 414 188 100 47 51 126 579 1,280
2 1,120 1,140 879 729 390 211 97 46 59 131 586 1,480
3 1,080 1,080 969 699 395 191 92 47 52 137 612 1,840
4 1,130 1,080 946 704 393 179 88 45 69 163 670 1,570
5 1,280 1,010 944 715 410 171 84 45 62 140 526 1,280
6 1,270 1,180 881 681 399 165 81 44 58 157 648 1,210
7 1,490 1,250 840 634 363 177 77 45 56 146 732 1,150
8 1,350 1,290 834 612 326 168 77 46 55 160 650 1,080
9 1,330 1,230 1,030 633 300 169 83 43 58 224 577 1,210
10 1,150 1,130 1,120 622 287 170 81 41 63 236 629 1,260
11 1,110 991 1,040 646 277 163 78 39 70 221 712 1,310
12 1,130 1,040 1,010 657 268 185 75 39 57 202 879 1,400
13 1,190 1,090 947 662 273 163 76 40 53 204 843 1,410
14 1,370 1,060 970 627 274 152 74 39 56 203 1,090 1,300
15 1,400 1,090 1,060 593 264 149 73 40 67 213 982 1,440
16 1,380 1,310 976 570 274 145 70 41 76 229 953 1,420
17 1,330 1,370 911 569 279 143 71 39 95 279 1,030 1,290
18 1,420 1,200 921 512 263 136 68 38 88 297 1,040 1,150
19 1,360 1,230 955 498 254 132 64 38 88 311 1,210 1,150
20 1,310 1,160 897 543 247 124 61 39 105 346 1,250 1,250
21 1,200 1,110 859 484 235 119 59 39 93 359 1,120 1,240
22 1,020 1,110 905 448 226 116 58 43 77 356 1,200 1,210
23 1,090 1,020 914 575 218 114 56 47 92 372 1,210 1,150
24 1,260 1,140 915 528 212 111 54 51 88 362 1,530 1,110
25 1,370 1,020 841 453 198 115 52 55 77 392 1,490 1,100
26 1,180 935 800 418 191 108 50 55 79 397 1,260 1,150
27 1,120 910 835 442 188 105 51 50 87 479 1,200 1,240
28 1,190 867 823 434 193 102 49 52 111 438 1,130 1,230
29 1,190 1,010 943 416 190 108 49 53 132 452 1,120 1,120
30 1,260   953 420 184 101 47 62 165 510 1,140 1,200
31 1,180   876   184   47 52   608   1,030