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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 12056500 NF SKOKOMISH R BL STAIRCASE RPDS NR HOODSPORT, WA


Mason County, Washington
Hydrologic Unit Code 17110017
Latitude  47°30'52", Longitude 123°19'43" NAD27
Drainage area 57.2  square miles
Gage datum 762.26 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 1923-10-01 -> 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
1 726 738 548 463 575 649 436 196 141 228 554 827
2 803 714 559 450 573 676 416 189 131 198 577 851
3 738 646 539 430 587 675 406 185 126 186 670 1,030
4 728 717 517 447 611 683 405 179 127 227 692 883
5 734 681 541 511 648 663 396 175 126 208 642 779
6 689 680 523 521 625 644 380 175 117 208 647 747
7 811 692 495 527 608 635 374 173 107 247 638 671
8 730 634 460 514 613 637 387 166 109 270 660 688
9 708 634 530 524 630 634 379 158 137 305 642 796
10 663 584 543 479 619 626 390 152 122 339 669 924
11 725 560 520 491 629 599 368 148 113 303 739 911
12 811 631 543 500 650 607 367 144 106 309 791 947
13 798 608 575 519 666 617 355 141 109 319 875 890
14 859 576 584 545 664 606 344 138 125 361 875 856
15 881 604 534 522 659 607 337 139 142 328 904 853
16 789 619 509 560 688 597 336 131 129 403 790 841
17 763 576 476 544 703 590 321 126 155 479 775 812
18 916 619 531 526 703 581 305 126 146 439 743 821
19 806 599 530 535 697 560 294 122 162 441 834 834
20 687 570 511 551 685 549 288 119 155 506 878 904
21 682 554 516 523 664 538 290 120 147 442 764 909
22 745 585 538 510 662 521 295 135 145 530 809 808
23 815 557 515 550 665 504 269 130 145 462 892 728
24 764 609 500 535 681 493 258 135 140 544 844 713
25 722 556 483 519 679 495 248 137 166 587 818 728
26 651 625 474 520 662 493 243 125 162 531 862 781
27 652 578 481 566 679 469 233 122 178 500 782 700
28 683 548 476 565 706 464 225 126 179 557 743 705
29 761 614 483 592 681 461 219 151 176 508 727 722
30 756   473 578 656 443 211 158 216 566 775 694
31 718   461   642   203 144   620   642