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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 12020800 SOUTH FORK CHEHALIS RIVER NEAR WILDWOOD, WA


Lewis County, Washington
Hydrologic Unit Code 17100103
Latitude  46°26'42", Longitude 123°04'57" NAD27
Drainage area 27  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 1998-10-01 -> 2024-09-30)

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
1 248 303 272 163 38         27 85 254
2 289 269 200 153 37         23 91 302
3 350 228 194 145 36         21 87 523
4 282 216 183 148           19 157 291
5 284 204 175 138           17 131 330
6 532 234 185 147           18 238 245
7 818 249 168 153           19 247 217
8 516 233 166 166           18 145 253
9 344 294 208 142           20 114 269
10 366 212 231 137           24 127 244
11 373 174 235 131           33 139 333
12 483 177 243 133           32 251 366
13 459 157 227 151           34 242 364
14 320 149 224 184           33 360 360
15 269 159 257 164           31 260 370
16 278 193 218 150           37 242 356
17 283 232 189 138           57 308 313
18 363 200 177 126           52 265 316
19 302 192 168 119           52 346 281
20 260 212 173 115           60 311 494
21 266 196 173 111           91 275 357
22 236 228 187 104           104 302 269
23 251 207 154 108           56 311 262
24 275 240 155 131           46 292 260
25 288 200 153 108           51 377 239
26 242 180 167 99           60 258 236
27 214 197 198 101           54 223 317
28 286 297 168 94           73 210 324
29 317 159 221 88           67 211 319
30 371   222 84           57 204 305
31 332   181             100   244