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USGS Surface-Water 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 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 -> 2024-09-30)

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
1 830 905 703 695 508 341 188 87 95 168 570 902
2 776 859 659 691 441 319 195 85 83 160 551 880
3 829 754 733 623 466 311 197 83 95 185 458 832
4 784 817 735 605 462 296 198 80 85 170 657 755
5 954 922 694 629 493 314 186 81 74 184 614 773
6 993 977 658 631 496 317 174 80 78 141 631 716
7 1,560 945 634 651 482 315 158 87 79 142 768 664
8 1,520 912 584 690 487 317 184 111 86 226 680 705
9 1,250 851 634 672 428 315 186 93 89 216 489 744
10 1,050 718 753 624 421 356 160 82 93 241 464 817
11 1,010 601 730 626 391 343 145 85 108 237 550 929
12 1,050 557 710 624 399 343 136 83 91 228 701 1,020
13 1,050 559 776 624 375 377 132 88 87 222 735 996
14 981 585 799 726 397 412 131 81 98 290 705 914
15 851 762 824 681 415 359 128 77 130 294 697 922
16 811 816 896 624 434 335 121 80 132 290 780 845
17 815 773 783 695 420 312 125 81 152 364 768 882
18 935 746 764 624 396 319 127 82 198 353 709 887
19 858 806 858 584 384 299 119 74 150 350 816 772
20 828 808 823 635 371 260 151 74 135 423 806 905
21 860 803 755 573 351 249 159 77 143 505 746 933
22 866 988 714 503 366 238 132 82 121 558 756 836
23 874 812 725 497 376 243 119 94 156 424 817 843
24 892 698 753 548 356 250 118 92 139 382 856 886
25 950 672 714 504 319 250 111 98 130 337 930 798
26 811 616 672 496 329 229 106 95 134 403 925 756
27 708 565 693 476 344 206 100 87 148 396 857 755
28 795 634 716 450 396 202 99 82 138 427 966 885
29 903 840 729 439 429 215 103 79 143 470 985 884
30 1,110   763 448 367 190 97 80 191 429 909 880
31 948   769   350   91 74   526   841