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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 12061500 SKOKOMISH RIVER NEAR POTLATCH, WA


Mason County, Washington
Hydrologic Unit Code 17110017
Latitude  47°18'36", Longitude 123°10'33" NAD27
Drainage area 227  square miles
Gage datum 13.99 feet above NAVD88
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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 1942-10-01 -> 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 1,880 2,170 1,660 1,350 1,020 689 451 272 300 452 1,200 2,240
2 2,090 2,150 1,670 1,280 995 704 437 270 294 482 1,310 2,340
3 2,180 2,020 1,700 1,250 1,000 711 417 267 268 433 1,620 2,660
4 2,010 2,140 1,660 1,320 970 708 407 267 269 521 1,800 2,760
5 2,090 1,970 1,580 1,410 1,010 705 399 264 269 484 1,470 2,350
6 2,190 1,820 1,450 1,370 1,020 667 390 265 256 501 1,640 2,230
7 2,610 1,980 1,440 1,330 949 653 379 263 250 528 1,790 2,010
8 2,530 1,930 1,420 1,250 923 632 387 261 249 548 1,780 1,790
9 2,250 1,800 1,560 1,410 888 635 403 258 280 598 1,760 1,990
10 2,150 1,770 1,630 1,290 868 634 397 256 282 722 1,940 2,450
11 2,160 1,690 1,760 1,300 857 616 390 245 269 687 1,890 2,510
12 2,370 1,860 1,860 1,290 850 659 393 241 252 683 2,090 2,610
13 2,520 1,980 1,810 1,290 880 613 399 238 248 698 2,080 2,730
14 2,720 1,850 1,760 1,240 893 602 368 237 254 644 2,170 2,630
15 2,760 1,910 1,680 1,200 868 587 357 240 287 642 2,360 2,740
16 2,510 2,100 1,660 1,270 879 576 349 237 289 731 2,170 2,620
17 2,380 2,160 1,570 1,240 847 556 349 232 340 977 1,790 2,510
18 2,530 2,090 1,690 1,160 854 541 349 230 334 897 1,960 2,520
19 2,570 2,260 1,750 1,150 852 537 338 229 333 1,000 2,140 2,410
20 2,260 2,030 1,610 1,230 826 526 328 229 364 1,180 2,530 2,490
21 1,990 1,960 1,560 1,140 789 509 323 229 339 1,110 2,260 2,250
22 1,900 2,110 1,660 1,070 787 492 368 247 334 1,140 2,150 2,220
23 2,150 1,840 1,680 1,160 766 476 325 249 372 1,070 2,380 2,210
24 2,280 2,050 1,570 1,200 793 466 309 261 341 1,080 2,310 2,260
25 2,280 1,880 1,470 1,120 761 463 300 260 358 1,120 2,360 2,240
26 2,130 1,880 1,490 1,080 738 463 298 260 344 1,160 2,210 2,530
27 1,940 1,740 1,430 1,080 737 462 297 248 363 1,220 2,010 2,400
28 1,910 1,700 1,370 1,070 757 455 288 249 387 1,210 2,190 2,200
29 2,190 1,890 1,480 1,140 741 457 282 287 360 1,140 2,170 1,960
30 2,490   1,440 1,150 720 445 278 337 430 1,280 2,250 2,020
31 2,340   1,410   703   273 338   1,300   1,890