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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 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
1 336 336 322 351 178 103 51 22 20 29 99 333
2 342 352 359 319 194 94 50 21 24 27 100 381
3 358 342 327 286 194 93 47 22 20 29 109 400
4 398 338 313 272 200 89 44 21 18 28 137 395
5 407 320 322 285 206 92 42 20 18 31 128 396
6 429 366 328 275 221 94 40 20 18 28 125 447
7 399 371 318 260 212 107 38 20 18 29 121 390
8 398 364 305 267 192 104 38 20 17 31 154 363
9 356 361 337 266 178 100 36 19 22 34 156 297
10 378 411 351 268 168 93 35 19 20 46 151 318
11 408 356 329 277 159 106 34 18 19 46 158 357
12 422 339 362 271 145 102 33 18 18 42 192 374
13 460 404 349 287 140 92 32 18 18 37 181 339
14 405 423 357 288 140 82 31 18 19 37 215 358
15 441 428 357 270 134 77 30 19 19 41 285 353
16 430 440 349 236 134 75 29 19 21 58 233 333
17 498 438 343 232 132 75 29 19 20 44 216 339
18 522 485 364 221 133 71 29 19 22 43 264 313
19 490 431 350 219 136 71 30 19 21 43 297 335
20 453 390 324 216 138 73 28 19 21 58 267 389
21 454 418 329 216 131 70 27 18 20 56 220 459
22 447 456 354 208 120 64 28 18 20 62 309 505
23 462 408 356 203 116 61 26 18 19 86 374 412
24 402 362 366 203 113 59 25 19 25 65 348 370
25 371 351 350 197 119 61 24 19 24 74 298 349
26 377 347 349 189 129 63 24 20 29 77 323 402
27 399 325 345 187 118 60 25 18 30 84 330 417
28 384 325 340 185 109 58 24 18 29 127 324 487
29 340 417 333 179 109 59 23 19 30 156 319 392
30 307   392 171 98 53 22 19 31 124 339 417
31 290   382   101   22 19   98   384