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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 78 - 79 years of record in, ft3/s   (Calculation Period 1939-10-01 -> 2018-09-30)

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 1,210 873 807 414 188 100 47 51 125 574 1,270
2 1,120 1,140 880 724 390 211 96 46 59 130 581 1,480
3 1,070 1,080 966 695 395 190 92 47 52 135 607 1,830
4 1,130 1,080 943 700 393 179 88 45 68 161 665 1,560
5 1,270 1,000 939 710 410 171 83 44 62 139 524 1,270
6 1,260 1,170 876 678 399 165 81 44 58 155 644 1,200
7 1,480 1,250 835 635 363 177 77 45 56 145 726 1,140
8 1,340 1,280 833 654 326 168 77 46 55 158 645 1,070
9 1,320 1,230 1,030 655 300 169 83 43 57 221 574 1,200
10 1,140 1,120 1,120 631 287 169 81 40 63 234 627 1,250
11 1,120 984 1,040 650 277 163 78 39 69 219 708 1,290
12 1,160 1,030 1,000 661 268 184 75 39 56 200 875 1,380
13 1,200 1,080 943 669 273 162 76 40 53 202 849 1,400
14 1,360 1,050 964 660 274 152 74 39 56 201 1,110 1,280
15 1,400 1,080 1,050 636 264 149 73 40 66 211 1,010 1,420
16 1,380 1,300 969 600 274 149 70 41 75 226 975 1,410
17 1,320 1,360 904 569 279 145 70 39 94 276 1,040 1,280
18 1,420 1,200 913 512 263 137 67 38 87 294 1,050 1,140
19 1,360 1,220 947 498 254 133 64 38 88 322 1,210 1,160
20 1,310 1,150 889 543 247 125 61 39 104 351 1,280 1,250
21 1,210 1,100 852 484 235 120 59 39 93 379 1,160 1,240
22 1,030 1,100 898 448 226 116 58 43 77 412 1,260 1,200
23 1,100 1,020 907 575 220 114 55 46 91 381 1,280 1,140
24 1,290 1,130 908 528 214 111 54 51 87 365 1,550 1,110
25 1,380 1,010 835 453 199 115 52 54 77 393 1,490 1,090
26 1,180 933 795 418 192 108 50 55 79 396 1,260 1,140
27 1,150 907 832 442 189 105 50 50 86 477 1,210 1,230
28 1,210 865 822 434 193 102 49 51 110 435 1,130 1,230
29 1,210 1,010 939 416 190 108 49 53 130 449 1,120 1,150
30 1,270   947 420 185 100 47 61 163 506 1,140 1,220
31 1,180   870   185   47 52   603   1,040