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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 12058790 NF SKOKOMISH R NR LWR CUSHMAN DAM NR POTLATCH, WA


Mason County, Washington
Hydrologic Unit Code 17110017
Latitude  47°23'48", Longitude 123°12'08" NAD27
Drainage area 97.9  square miles
Gage datum 290.33 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 2007-10-01 -> 2025-09-30)

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
1 307 300 246 210 223 219 187 121 162 188 290 347
2 307 328 245 209 220 219 182 120 162 193 304 336
3 302 314 244 207 225 218 175 121 161 196 292 330
4 294 284 242 208 227 218 167 121 162 198 276 349
5 294 291 240 207 221 218 161 120 162 200 274 346
6 294 291 240 207 220 217 155 120 162 201 274 346
7 294 279 237 207 229 217 154 121 162 201 285 372
8 331 278 235 208 232 216 153 121 162 201 307 416
9 349 278 236 208 224 216 152 121 162 202 327 399
10 325 277 229 209 226 216 149 121 168 205 308 399
11 318 283 228 209 221 217 145 121 173 207 294 399
12 300 318 226 209 226 217 141 121 173 207 309 406
13 294 308 225 209 226 216 136 120 173 208 308 391
14 294 306 225 210 225 215 135 119 173 208 295 314
15 297 292 224 210 226 213 135 119 173 218 295 309
16 307 288 221 211 228 214 134 118 173 223 294 310
17 322 302 236 212 228 228 133 119 171 223 294 310
18 336 302 221 212 228 234 133 119 168 223 294 313
19 321 277 219 216 230 234 133 118 168 223 305 324
20 345 261 220 218 231 228 133 118 170 230 340 338
21 361 256 249 219 228 217 133 118 173 230 411 336
22 323 264 221 219 226 209 133 118 174 242 445 312
23 295 274 216 226 226 199 131 120 174 247 371 294
24 333 298 216 233 225 194 129 121 175 268 305 294
25 384 273 215 226 226 193 130 121 176 290 294 294
26 362 249 213 226 225 192 130 121 178 270 294 304
27 328 249 213 220 227 190 125 120 181 249 294 297
28 295 247 213 224 228 189 122 123 182 247 306 299
29 295 248 211 221 224 188 122 131 183 268 324 314
30 293   211 221 222 189 121 138 179 283 336 294
31 294   211   221   121 145   269   301