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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 12142000 NF SNOQUALMIE RIVER NEAR SNOQUALMIE FALLS, WA


King County, Washington
Hydrologic Unit Code 17110010
Latitude  47°36'54", Longitude 121°42'44" NAD27
Drainage area 64.0  square miles
Gage datum 1,135 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 1929-10-01 -> 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
1 605 631 533 571 648 735 438 141 167 253 641 719
2 626 523 478 532 673 765 435 137 183 254 721 881
3 662 515 485 492 706 728 433 137 146 282 691 872
4 678 551 447 495 692 704 421 133 141 279 842 741
5 781 545 515 592 709 732 382 147 125 251 703 704
6 633 580 498 635 722 722 376 127 141 241 682 697
7 1,020 606 438 573 690 740 351 125 144 284 829 630
8 755 595 402 538 674 706 350 130 146 311 709 659
9 603 513 524 564 680 683 366 114 142 301 604 677
10 583 466 503 544 674 701 351 108 172 353 594 759
11 623 417 496 568 689 646 332 107 171 357 630 766
12 693 495 537 576 725 642 332 105 149 318 725 719
13 712 509 550 604 752 653 356 112 135 347 782 775
14 780 573 512 639 768 679 303 105 192 339 821 729
15 754 585 533 600 762 671 297 106 208 362 656 695
16 701 610 533 591 798 659 282 106 232 421 668 649
17 730 522 481 658 774 641 282 98 227 403 685 678
18 840 532 513 648 736 634 260 107 222 399 624 685
19 743 655 541 613 730 627 237 104 203 458 699 621
20 658 524 493 670 734 589 233 111 283 497 682 730
21 599 492 478 612 736 580 220 110 250 509 605 700
22 574 570 489 587 790 557 204 106 242 554 661 626
23 782 482 488 617 765 532 193 117 235 499 835 635
24 841 464 524 625 737 536 192 138 239 535 902 674
25 740 441 493 590 748 532 185 139 236 654 897 610
26 617 472 484 587 752 516 182 133 195 602 758 663
27 584 472 476 629 741 488 177 133 215 519 702 562
28 631 536 505 695 777 496 171 138 228 580 758 629
29 628 661 508 675 793 506 167 126 243 534 730 663
30 668   558 669 748 458 159 128 333 557 682 648
31 648   619   702   145 119   665   566