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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 05471500 South Skunk River near Oskaloosa, IA


Mahaska County, Iowa
Hydrologic Unit Code 07080105
Latitude  41°21'20.5", Longitude  92°39'25.8" NAD27
Drainage area 1,635  square miles
Gage datum 685.50 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 1945-10-01 -> 2021-09-30)

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
1 584 480 1,120 1,860 1,850 2,230 2,290 861 716 644 688 588
2 570 551 1,140 1,850 1,870 2,150 2,180 789 775 683 766 582
3 540 602 1,250 1,820 1,840 2,010 2,120 764 751 684 696 557
4 507 644 1,330 1,780 1,720 1,880 2,000 743 712 641 694 548
5 511 648 1,360 1,710 1,700 1,910 2,010 721 680 632 662 557
6 518 602 1,330 1,610 1,670 1,920 1,980 788 663 631 600 561
7 510 593 1,310 1,540 1,730 1,920 1,930 699 655 574 594 546
8 527 592 1,440 1,470 1,810 1,970 1,820 643 665 569 602 525
9 550 597 1,530 1,410 1,850 2,100 1,670 675 651 668 593 504
10 525 588 1,610 1,470 1,930 2,190 1,610 757 698 662 591 501
11 484 616 1,630 1,500 1,970 2,180 1,490 813 622 698 566 500
12 479 577 1,690 1,500 1,850 2,230 1,550 834 547 764 597 505
13 524 554 1,890 1,550 1,900 2,380 1,540 879 628 796 598 506
14 517 589 2,010 1,550 1,960 2,560 1,500 976 585 822 582 555
15 487 604 2,020 1,540 1,910 2,920 1,480 950 547 827 562 576
16 497 639 2,000 1,600 1,870 3,050 1,420 877 505 774 570 598
17 528 695 2,010 1,610 1,960 2,850 1,370 848 499 741 587 611
18 530 849 1,970 1,730 1,870 2,750 1,380 810 516 715 600 608
19 524 1,120 2,080 1,800 1,820 2,720 1,400 799 553 661 587 603
20 562 1,280 2,190 1,820 1,850 2,770 1,410 779 591 648 608 575
21 606 1,310 2,170 1,790 1,880 2,790 1,390 781 707 619 604 526
22 639 1,330 2,140 1,680 1,890 2,670 1,330 777 722 631 582 499
23 632 1,390 1,960 1,600 1,920 2,650 1,170 776 683 726 574 494
24 595 1,350 1,740 1,600 1,970 2,610 1,090 777 659 752 559 498
25 579 1,320 1,680 1,700 2,090 2,500 1,040 705 669 739 546 526
26 560 1,240 1,660 1,690 2,250 2,390 1,030 684 707 682 549 549
27 542 1,140 1,620 1,800 2,350 2,370 1,040 811 720 626 568 562
28 503 1,110 1,620 1,810 2,400 2,410 992 840 670 584 598 629
29 478 1,230 1,630 1,840 2,440 2,290 994 740 657 562 613 661
30 464   1,670 1,850 2,400 2,220 960 747 651 607 609 671
31 463   1,780   2,290   938 736   621   620