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USGS 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 12442500 SIMILKAMEEN RIVER NEAR NIGHTHAWK, WA


Okanogan County, Washington
Hydrologic Unit Code 17020007
Latitude  48°59'05", Longitude 119°37'02" NAD27
Drainage area 3,550  square miles
Gage datum 1,137.70 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 1928-10-01 -> 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
1 701 682 719 1,050 4,460 10,700 4,960 1,290 631 565 897 1,060
2 685 698 704 1,090 4,650 10,600 4,780 1,240 625 584 866 1,060
3 667 711 704 1,130 4,860 10,700 4,620 1,200 623 581 880 1,020
4 660 724 698 1,170 5,040 10,600 4,490 1,170 620 586 896 1,020
5 683 721 692 1,210 5,310 10,500 4,310 1,130 609 596 950 1,030
6 687 719 695 1,230 5,660 10,300 4,140 1,100 596 600 982 972
7 671 729 699 1,280 5,930 10,100 3,980 1,060 599 587 1,040 921
8 684 729 700 1,360 6,190 9,930 3,860 1,020 596 587 1,030 869
9 720 723 702 1,460 6,500 9,670 3,700 990 578 590 1,000 836
10 720 720 708 1,550 6,770 9,470 3,530 955 568 606 1,030 853
11 709 714 714 1,590 7,040 9,370 3,370 924 561 612 1,110 860
12 694 720 722 1,640 7,350 9,140 3,210 892 557 629 1,000 887
13 684 719 783 1,710 7,740 8,940 3,080 865 556 638 1,010 868
14 680 716 784 1,810 8,020 8,870 2,940 850 548 635 1,040 834
15 671 719 786 1,920 8,240 8,700 2,800 844 550 646 1,110 824
16 665 711 799 1,980 8,530 8,570 2,670 830 560 653 1,220 810
17 676 709 802 2,070 8,840 8,410 2,560 822 569 667 1,120 807
18 684 707 810 2,180 9,100 8,130 2,460 802 571 699 1,060 790
19 679 705 821 2,330 9,160 7,800 2,350 779 570 709 1,040 769
20 700 708 834 2,500 9,340 7,510 2,240 762 566 706 994 768
21 691 707 848 2,660 9,590 7,340 2,140 742 566 762 972 762
22 685 702 857 2,870 9,710 7,170 2,040 725 567 786 934 753
23 675 697 863 3,060 9,830 6,970 1,940 715 567 764 938 737
24 690 692 872 3,240 9,950 6,680 1,860 706 556 748 1,020 722
25 708 688 886 3,400 10,100 6,340 1,800 702 551 771 1,040 717
26 714 696 901 3,510 10,300 5,990 1,710 692 550 853 1,030 710
27 694 714 911 3,650 10,500 5,720 1,620 680 550 863 1,030 801
28 675 771 924 3,830 10,500 5,500 1,540 666 553 839 1,050 787
29 675 863 949 4,040 10,600 5,330 1,480 653 552 860 1,060 735
30 684   980 4,230 10,700 5,200 1,430 643 561 869 1,100 708
31 684   1,020   10,700   1,360 635   854   704