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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 12148500 TOLT RIVER NEAR CARNATION, WA


King County, Washington
Hydrologic Unit Code 17110010
Latitude  47°41'45", Longitude 121°49'22" NAD27
Drainage area 81.4  square miles
Gage datum 348 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 1927-10-01 -> 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
1 791 813 659 737 670 632 398 202 201 286 632 846
2 779 734 623 670 671 634 385 197 201 305 625 961
3 792 737 651 633 663 606 377 189 185 327 685 972
4 824 763 653 639 638 610 365 184 195 321 763 895
5 909 755 644 700 666 629 342 189 192 310 630 843
6 855 795 618 697 689 609 341 187 204 284 669 817
7 1,110 846 605 659 674 639 317 180 191 310 769 791
8 931 833 566 647 659 600 316 181 201 348 726 815
9 875 840 647 674 651 598 329 167 192 408 649 854
10 805 761 640 649 649 604 316 162 198 452 706 893
11 816 659 621 655 692 565 307 162 200 397 738 952
12 890 709 612 652 683 557 315 159 179 372 814 938
13 867 720 611 666 689 570 329 166 179 375 810 895
14 925 770 603 690 691 574 291 158 235 360 841 917
15 941 777 632 684 667 582 284 174 225 418 728 972
16 905 790 645 680 684 576 273 168 248 409 763 843
17 938 738 610 739 694 556 278 158 257 407 761 832
18 990 726 625 704 673 530 255 159 251 393 763 816
19 883 797 656 677 667 534 245 159 240 451 779 799
20 877 737 627 700 682 512 244 166 311 500 840 857
21 815 743 628 664 679 480 237 167 271 493 733 790
22 794 745 632 634 711 471 226 170 260 500 799 768
23 1,040 685 634 657 685 455 224 182 261 486 899 812
24 999 699 694 670 664 455 230 188 250 517 977 835
25 925 664 669 647 639 452 227 186 284 578 1,010 761
26 839 659 646 638 646 437 234 184 278 540 897 772
27 803 642 639 660 644 428 231 190 274 510 902 732
28 816 675 638 726 675 432 223 194 272 582 895 849
29 856 674 629 753 679 437 233 189 270 525 826 828
30 874   663 714 641 404 220 181 332 555 799 830
31 844   716   636   213 179   654   768