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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 2,180 1,660 1,350 1,020 689 451 272 300 452 1,180 2,250
2 2,090 2,170 1,670 1,280 996 704 437 270 294 482 1,290 2,360
3 2,180 2,040 1,700 1,250 1,000 712 416 268 268 434 1,630 2,680
4 2,000 2,150 1,660 1,320 971 708 406 267 269 521 1,800 2,780
5 2,070 1,980 1,580 1,410 1,010 705 399 264 269 484 1,470 2,360
6 2,190 1,840 1,450 1,370 1,020 667 390 265 256 502 1,650 2,250
7 2,620 2,000 1,440 1,340 949 653 379 263 250 528 1,800 2,010
8 2,530 1,950 1,420 1,260 923 632 387 261 249 549 1,790 1,790
9 2,260 1,810 1,560 1,410 888 634 403 258 280 599 1,770 2,000
10 2,160 1,780 1,630 1,300 868 633 397 256 282 728 1,950 2,470
11 2,170 1,690 1,760 1,300 857 615 390 245 269 692 1,890 2,530
12 2,400 1,860 1,860 1,300 850 659 393 241 252 689 2,080 2,640
13 2,550 1,980 1,810 1,290 880 612 399 238 248 703 2,010 2,750
14 2,750 1,850 1,760 1,240 893 601 368 237 254 648 2,110 2,630
15 2,790 1,910 1,680 1,200 868 586 357 240 287 646 2,340 2,740
16 2,540 2,100 1,660 1,270 879 575 349 237 289 737 2,160 2,620
17 2,390 2,160 1,570 1,240 847 555 349 232 340 986 1,770 2,500
18 2,560 2,090 1,690 1,160 854 540 349 230 334 904 1,960 2,410
19 2,590 2,260 1,750 1,150 852 537 338 229 333 1,000 2,140 2,370
20 2,270 2,030 1,610 1,230 826 525 329 229 364 1,170 2,520 2,470
21 2,000 1,960 1,560 1,140 789 508 323 229 339 1,110 2,250 2,230
22 1,910 2,110 1,660 1,070 786 491 368 247 334 1,140 2,130 2,200
23 2,160 1,840 1,680 1,160 766 476 325 249 372 1,070 2,350 2,170
24 2,300 2,050 1,570 1,200 793 465 309 261 341 1,080 2,280 2,230
25 2,300 1,880 1,470 1,120 761 462 300 260 358 1,120 2,340 2,230
26 2,150 1,880 1,490 1,080 738 463 298 260 344 1,160 2,200 2,490
27 1,950 1,740 1,430 1,080 737 461 297 248 364 1,220 2,000 2,340
28 1,920 1,700 1,370 1,080 756 455 288 249 387 1,200 2,200 2,160
29 2,210 1,890 1,480 1,140 740 456 282 287 360 1,140 2,180 1,920
30 2,510   1,440 1,150 720 445 278 337 429 1,280 2,260 2,010
31 2,360   1,410   703   273 338   1,310   1,880