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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 12087000 MASHEL RIVER NEAR LA GRANDE, WA


Pierce County, Washington
Hydrologic Unit Code 17110015
Latitude  46°51'25", Longitude 122°18'05" NAD27
Drainage area 80.7  square miles
Gage datum 619.53 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 1940-10-01 -> 2020-09-30)

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
1 392 413 303 356 248 186 97 24 22 79 254 457
2 406 406 296 344 253 175 87 24 21 57 224 468
3 384 328 313 311 250 160 80 23 21 65 212 498
4 374 357 324 294 247 147 74 22 23 74 204 461
5 457 350 314 308 251 143 69 21 25 76 196 404
6 418 412 287 318 252 149 64 21 38 58 219 375
7 541 459 293 318 232 157 57 22 27 55 314 356
8 479 508 261 322 218 152 56 22 27 65 251 387
9 397 475 323 332 221 146 68 21 25 93 194 494
10 385 373 416 315 223 157 62 20 26 104 205 440
11 395 327 369 347 217 172 55 19 27 97 213 558
12 358 331 381 340 212 158 50 19 23 83 288 514
13 379 317 381 350 200 162 45 21 23 71 313 500
14 352 304 370 361 197 163 43 20 26 79 339 473
15 337 335 434 329 240 176 41 19 35 79 321 425
16 377 374 407 325 228 177 44 20 41 84 323 420
17 384 407 346 328 226 167 48 20 45 104 369 450
18 486 356 344 304 217 153 43 19 46 108 371 431
19 397 350 361 295 212 155 41 18 37 108 388 455
20 376 325 373 320 199 146 49 18 37 129 356 521
21 415 362 342 297 191 134 46 18 34 123 348 461
22 394 434 352 269 213 126 39 19 34 143 426 413
23 371 376 369 276 205 119 38 20 31 133 462 391
24 430 422 350 290 197 118 38 23 34 119 438 368
25 446 392 383 270 186 110 34 32 34 132 578 331
26 378 383 334 258 195 101 32 38 37 141 503 306
27 305 332 338 247 209 104 31 35 41 154 490 357
28 329 322 337 247 225 103 31 27 47 152 487 410
29 356 296 362 242 215 108 30 23 59 150 410 499
30 475   386 248 184 99 28 23 85 165 401 461
31 463   362   194   26 21   239   402