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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 11502500 WILLIAMSON RIVER BLW SPRAGUE RIVER NR CHILOQUIN,OR


Klamath County, Oregon
Hydrologic Unit Code 18010201
Latitude  42°33'51.75", Longitude 121°52'46.97" NAD83
Drainage area 3,030  square miles
Gage datum 4,148.50 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 1917-10-01 -> 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
1 915 1,030 1,310 1,800 1,810 1,270 682 536 526 580 667 793
2 927 1,040 1,340 1,820 1,800 1,250 671 532 527 585 671 803
3 944 1,040 1,360 1,850 1,780 1,230 663 529 524 591 673 818
4 1,010 1,050 1,360 1,850 1,780 1,210 654 527 525 593 673 827
5 1,030 1,050 1,350 1,850 1,770 1,190 647 525 522 596 674 831
6 973 1,060 1,350 1,840 1,750 1,160 636 524 522 598 678 827
7 928 1,070 1,360 1,840 1,740 1,140 627 523 525 600 678 819
8 908 1,090 1,370 1,860 1,720 1,110 619 522 527 601 681 819
9 897 1,100 1,380 1,880 1,700 1,090 612 522 531 604 687 829
10 897 1,120 1,400 1,890 1,690 1,060 602 519 532 609 690 836
11 896 1,140 1,430 1,900 1,680 1,040 595 519 532 615 694 839
12 896 1,160 1,470 1,890 1,680 1,010 590 518 536 615 698 848
13 904 1,160 1,520 1,890 1,670 990 584 517 538 621 704 858
14 912 1,160 1,540 1,890 1,650 967 581 515 541 626 712 860
15 926 1,160 1,550 1,900 1,620 945 575 514 544 634 722 866
16 956 1,170 1,550 1,900 1,590 923 571 510 547 648 734 873
17 992 1,180 1,570 1,890 1,570 896 566 511 557 655 737 875
18 1,030 1,190 1,580 1,890 1,540 874 564 513 558 652 738 887
19 1,040 1,210 1,590 1,890 1,530 852 560 516 558 647 738 884
20 1,040 1,240 1,590 1,900 1,520 831 561 517 562 642 743 874
21 1,030 1,260 1,610 1,910 1,520 815 559 517 563 641 745 874
22 1,030 1,280 1,620 1,910 1,510 798 558 519 564 645 748 895
23 1,020 1,300 1,620 1,900 1,500 784 555 520 564 648 754 929
24 994 1,320 1,630 1,880 1,490 767 550 520 565 651 764 974
25 990 1,320 1,650 1,870 1,470 754 548 519 564 656 770 1,030
26 999 1,310 1,680 1,860 1,440 742 546 521 568 660 777 1,060
27 1,010 1,300 1,710 1,860 1,410 733 542 521 571 659 783 1,030
28 1,000 1,300 1,720 1,850 1,380 722 543 521 571 663 781 997
29 991 1,280 1,730 1,830 1,350 711 538 521 571 665 780 968
30 997   1,770 1,820 1,320 700 538 520 574 667 782 932
31 1,010   1,790   1,290   535 524   667   914