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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 -> 2020-09-30)

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
1 690 678 715 1,040 4,360 10,700 4,970 1,310 640 570 901 1,010
2 675 681 700 1,080 4,540 10,600 4,790 1,260 634 586 871 958
3 656 689 699 1,120 4,720 10,700 4,630 1,220 633 584 885 937
4 648 704 693 1,170 4,870 10,600 4,510 1,180 630 591 901 957
5 672 704 687 1,200 5,130 10,500 4,320 1,150 620 602 942 982
6 678 706 691 1,230 5,460 10,300 4,150 1,110 606 607 930 921
7 661 714 696 1,270 5,730 10,100 4,000 1,070 610 594 1,010 860
8 674 713 696 1,350 6,040 9,990 3,880 1,040 608 594 1,020 815
9 712 712 699 1,460 6,380 9,740 3,720 1,000 589 598 995 789
10 711 713 707 1,550 6,670 9,550 3,560 967 578 615 1,030 810
11 700 709 714 1,590 6,940 9,440 3,390 937 572 622 1,110 823
12 683 717 721 1,640 7,240 9,210 3,240 905 567 638 1,000 854
13 674 716 785 1,710 7,630 9,010 3,110 877 566 646 1,010 838
14 668 714 786 1,820 7,910 8,920 2,970 863 558 641 1,030 809
15 657 716 789 1,930 8,130 8,750 2,830 857 559 651 1,020 802
16 651 708 802 2,000 8,410 8,630 2,700 844 569 659 989 790
17 663 706 805 2,080 8,700 8,470 2,590 836 578 674 983 789
18 671 705 813 2,190 8,940 8,190 2,490 816 581 701 970 776
19 665 704 824 2,330 9,020 7,850 2,380 793 580 712 970 756
20 686 707 837 2,480 9,230 7,560 2,270 775 572 707 940 755
21 676 707 851 2,640 9,530 7,370 2,160 755 573 766 928 750
22 671 701 860 2,840 9,690 7,200 2,070 737 575 793 896 743
23 664 696 866 3,020 9,840 6,990 1,960 726 575 771 907 727
24 682 691 873 3,210 9,980 6,700 1,890 716 564 755 997 711
25 701 687 885 3,370 10,200 6,350 1,820 712 559 779 1,030 711
26 705 694 900 3,480 10,400 6,010 1,740 702 554 866 1,010 708
27 685 711 909 3,620 10,500 5,730 1,650 690 554 876 1,010 800
28 667 770 920 3,800 10,600 5,500 1,560 676 557 852 1,030 782
29 668 863 939 4,010 10,700 5,330 1,500 663 555 872 993 726
30 679   965 4,170 10,800 5,210 1,460 653 565 868 1,050 698
31 680   1,000   10,700   1,380 645   853   693