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USGS Surface-Water 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 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 328 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 water year of record in, ft3/s   (Calculation Period 2007-10-01 -> 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
1 308 299 249 210 223 216 184 121 161 188 292 350
2 308 331 247 209 220 215 181 120 161 193 306 338
3 302 316 246 208 225 215 174 121 161 197 294 332
4 293 285 245 208 227 214 166 121 161 199 276 352
5 293 283 243 207 221 214 160 120 161 201 274 348
6 293 283 242 207 220 213 155 120 161 202 275 349
7 293 280 238 208 230 213 153 120 161 202 286 381
8 316 278 237 208 233 212 153 121 161 202 309 431
9 340 278 237 209 224 212 152 121 161 203 329 412
10 328 277 232 209 226 213 148 121 168 206 308 411
11 320 284 232 209 220 213 145 121 173 208 293 411
12 299 324 229 209 223 213 141 120 173 209 309 410
13 293 313 228 210 223 212 137 119 173 209 308 395
14 292 310 228 210 223 211 136 118 173 210 294 316
15 296 294 226 211 224 209 136 118 173 219 294 310
16 308 289 223 212 225 209 135 118 173 224 293 311
17 324 306 241 213 226 220 134 118 170 224 293 310
18 340 309 223 213 225 227 134 118 167 224 293 314
19 323 281 221 218 228 227 134 118 168 224 305 326
20 351 263 222 220 230 222 134 118 170 232 342 342
21 369 258 254 218 226 213 134 118 173 232 418 340
22 325 267 222 218 223 206 134 117 174 243 454 313
23 294 278 217 227 223 198 132 120 174 248 375 293
24 337 305 217 234 223 192 130 121 175 271 305 292
25 395 279 216 226 223 192 130 121 175 294 293 292
26 370 252 214 226 223 190 130 121 178 273 293 304
27 331 252 213 220 225 188 125 120 181 250 293 296
28 293 250 213 224 225 187 122 122 183 249 306 298
29 294 255 212 220 221 186 122 129 183 271 325 315
30 292   212 221 219 187 121 135 179 287 338 292
31 292   211   218   120 143   272   300