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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 12155300 PILCHUCK RIVER NEAR SNOHOMISH, WA


Snohomish County, Washington
Hydrologic Unit Code 17110011
Latitude  47°56'06", Longitude 122°04'19" NAD27
Drainage area 127  square miles
Gage datum 30.00 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 1991-10-01 -> 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
1 831 905 703 695 505 342 188 88 95 165 569 885
2 773 859 659 691 438 320 194 85 84 157 559 862
3 823 754 733 623 462 325 196 83 95 181 465 815
4 781 817 735 605 457 308 197 80 85 167 660 741
5 953 922 694 629 488 323 184 81 74 182 621 757
6 989 977 658 631 506 322 173 80 78 140 631 702
7 1,530 945 634 651 491 317 157 86 79 140 759 679
8 1,490 912 584 690 492 317 182 110 86 221 672 739
9 1,230 851 634 672 430 315 184 92 88 212 486 755
10 1,030 718 753 627 422 354 159 82 92 237 461 814
11 1,000 601 730 623 391 340 144 84 106 232 550 918
12 1,040 557 710 620 398 339 135 83 90 224 705 1,000
13 1,040 559 776 618 373 372 131 88 86 217 739 978
14 966 585 799 716 394 405 130 80 97 284 734 901
15 838 762 824 671 411 357 127 77 128 288 728 910
16 799 816 896 616 429 337 120 79 130 286 784 835
17 801 773 783 684 416 312 124 80 150 359 800 870
18 918 746 764 614 392 320 126 82 194 348 750 910
19 842 806 858 575 379 300 118 75 147 348 831 784
20 812 808 823 624 367 260 149 74 133 441 810 903
21 843 803 755 563 348 249 157 77 141 510 746 926
22 848 988 714 495 385 237 131 82 120 555 754 831
23 855 812 725 489 382 241 118 94 153 422 812 840
24 892 698 753 538 357 248 117 104 137 380 847 881
25 950 672 714 498 322 248 110 107 128 334 917 792
26 811 616 672 508 336 227 105 99 133 399 914 766
27 708 565 693 482 351 208 99 90 147 415 846 771
28 795 634 716 454 397 204 98 85 137 449 950 896
29 903 840 729 442 435 215 102 81 142 484 967 892
30 1,110   763 449 372 190 102 81 187 435 892 888
31 948   769   352   94 75   525   852