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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 12448500 METHOW RIVER AT WINTHROP, WA


Okanogan County, Washington
Hydrologic Unit Code 17020008
Latitude  48°28'25", Longitude 120°10'34" NAD27
Drainage area 1,007  square miles
Gage datum 1,718.09 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 1911-10-01 -> 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
1 289 292 309 828 2,750 5,650 2,410 681 297 268 373 466
2 290 298 311 897 2,920 5,360 2,280 648 291 276 368 462
3 288 295 311 955 3,160 5,290 2,200 619 285 278 362 437
4 285 295 313 984 3,360 5,250 2,130 606 281 282 362 420
5 284 298 314 1,000 3,690 5,210 1,960 588 276 285 381 411
6 290 298 321 1,010 3,870 5,120 1,870 567 289 285 396 409
7 292 299 326 1,060 3,950 4,940 1,830 552 293 284 479 396
8 297 303 329 1,140 4,030 4,870 1,800 530 285 288 447 384
9 295 306 333 1,240 4,140 4,810 1,740 508 276 289 428 387
10 292 303 341 1,290 4,170 4,690 1,680 488 268 289 426 385
11 287 307 350 1,310 4,250 4,510 1,610 474 263 291 426 388
12 281 306 381 1,320 4,530 4,300 1,540 456 259 290 436 385
13 278 305 406 1,320 4,680 4,160 1,470 442 254 288 489 380
14 279 306 422 1,340 4,930 4,000 1,380 439 254 288 493 370
15 277 308 460 1,330 5,310 3,890 1,280 431 256 288 568 358
16 279 309 472 1,350 5,630 3,810 1,210 418 257 292 561 355
17 285 309 481 1,390 5,990 3,680 1,150 407 256 297 521 345
18 283 311 497 1,470 6,000 3,530 1,110 402 259 307 497 342
19 287 309 521 1,610 5,760 3,340 1,070 390 261 306 487 335
20 296 310 542 1,800 5,560 3,220 1,020 377 258 321 467 332
21 297 310 555 2,000 5,530 3,300 1,000 368 254 459 445 324
22 295 310 568 2,160 5,300 3,310 983 370 251 384 427 323
23 296 306 587 2,200 5,160 3,330 950 359 248 362 439 319
24 302 305 600 2,310 5,120 3,230 923 351 246 351 486 313
25 301 302 617 2,340 5,140 3,090 886 345 245 343 477 311
26 297 304 628 2,360 5,170 2,940 859 338 246 343 450 307
27 295 305 653 2,420 5,180 2,840 817 327 248 344 431 304
28 295 308 685 2,470 5,290 2,720 774 317 248 342 427 302
29 291 329 699 2,540 5,480 2,720 752 309 260 346 474 301
30 290   720 2,650 5,560 2,650 722 308 262 347 494 295
31 289   771   5,690   685 305   359   291