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USGS Daily Statistics for Oregon

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 14152500 COAST FORK WILLAMETTE AT LONDON, OR


Lane County, Oregon
Hydrologic Unit Code 17090002
Latitude  43°38'30", Longitude 123°05'05" NAD27
Drainage area 72.1  square miles
Gage datum 852.58 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 1935-10-01 -> 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
1 334 337 323 351 178 103 51 22 20 29 97 337
2 338 353 360 319 194 94 50 21 24 27 99 386
3 346 344 328 286 194 93 47 22 20 30 107 406
4 388 341 314 272 200 89 44 21 18 28 137 400
5 398 323 322 285 206 92 42 20 18 31 129 402
6 420 369 328 275 221 94 40 20 18 29 126 453
7 394 374 318 260 212 107 38 20 18 29 122 395
8 396 367 305 267 192 104 38 20 17 31 156 367
9 355 365 337 266 178 100 36 19 22 35 158 301
10 379 416 351 268 168 93 35 19 20 46 153 322
11 410 359 329 277 159 106 34 18 19 47 160 362
12 424 342 362 271 145 102 33 18 18 42 193 380
13 463 409 349 287 140 92 32 18 18 38 182 344
14 408 424 357 288 140 82 31 18 19 37 212 361
15 445 430 357 270 134 77 30 19 19 41 286 356
16 434 441 349 236 134 75 29 19 21 59 235 334
17 503 434 343 232 132 75 29 19 20 45 213 337
18 529 483 364 221 133 71 29 19 22 43 260 311
19 496 429 350 219 136 71 30 19 21 44 297 335
20 458 388 324 216 138 73 28 19 21 59 266 392
21 459 418 329 216 131 70 27 18 20 57 215 464
22 453 458 354 208 120 64 28 18 20 63 304 510
23 468 395 356 203 116 61 26 18 19 87 371 415
24 407 346 366 203 113 59 25 19 25 66 347 362
25 375 343 350 197 119 61 24 19 24 75 297 345
26 382 342 349 189 129 63 24 20 29 78 324 386
27 405 322 345 187 118 60 25 18 30 85 332 402
28 388 324 340 185 109 58 24 18 29 128 327 475
29 344 417 333 179 109 59 23 19 30 158 322 361
30 311   392 171 98 53 22 19 31 125 343 405
31 292   382   101   22 19   98   379