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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 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 1,210 870 812 414 188 100 47 51 125 579 1,280
2 1,120 1,140 879 729 390 211 96 46 59 130 586 1,480
3 1,080 1,080 969 699 395 190 92 47 52 135 612 1,840
4 1,130 1,080 946 704 393 179 88 45 68 161 670 1,570
5 1,280 1,010 944 715 410 171 83 44 62 139 526 1,280
6 1,270 1,180 881 681 399 165 81 44 58 155 648 1,210
7 1,490 1,250 840 634 363 177 77 45 56 145 732 1,150
8 1,350 1,290 834 612 326 168 77 46 55 158 650 1,080
9 1,330 1,230 1,030 633 300 169 83 43 57 221 577 1,210
10 1,150 1,130 1,120 622 287 169 81 40 63 234 629 1,260
11 1,110 991 1,040 646 277 163 78 39 69 219 712 1,310
12 1,130 1,040 1,010 657 268 184 75 39 56 200 879 1,400
13 1,190 1,090 947 662 273 162 76 40 53 202 843 1,410
14 1,370 1,060 970 627 274 152 74 39 56 201 1,090 1,300
15 1,400 1,090 1,060 593 264 149 73 40 66 211 982 1,440
16 1,380 1,310 976 570 274 149 70 41 75 226 953 1,420
17 1,330 1,370 911 569 279 145 70 39 94 276 1,030 1,290
18 1,420 1,200 921 512 263 137 67 38 87 294 1,040 1,150
19 1,360 1,230 955 498 254 133 64 38 88 322 1,210 1,150
20 1,310 1,160 897 543 247 125 61 39 104 351 1,250 1,250
21 1,200 1,110 859 484 235 120 59 39 93 379 1,120 1,240
22 1,020 1,110 905 448 226 116 58 43 77 412 1,200 1,210
23 1,090 1,020 914 575 220 114 55 46 91 381 1,210 1,150
24 1,260 1,140 915 528 214 111 54 51 87 362 1,530 1,110
25 1,370 1,020 841 453 199 115 52 54 77 392 1,490 1,100
26 1,180 935 800 418 192 108 50 55 79 397 1,260 1,150
27 1,120 910 835 442 189 105 50 50 86 479 1,200 1,240
28 1,190 867 823 434 193 102 49 51 110 438 1,130 1,230
29 1,190 1,010 943 416 190 108 49 53 130 452 1,120 1,120
30 1,260   953 420 185 100 47 61 163 510 1,140 1,200
31 1,180   876   185   47 52   608   1,030