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USGS Daily Statistics for Iowa

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


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 -> 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
1 574 472 1,130 1,860 1,880 2,220 2,320 875 724 651 695 582
2 563 544 1,140 1,860 1,900 2,150 2,210 803 784 691 774 574
3 534 597 1,250 1,830 1,870 2,010 2,150 778 760 692 703 543
4 502 641 1,320 1,790 1,750 1,890 2,040 757 721 649 701 535
5 508 645 1,350 1,720 1,730 1,920 2,050 735 688 639 668 547
6 515 599 1,330 1,620 1,700 1,940 2,020 803 671 638 606 552
7 507 591 1,300 1,550 1,750 1,930 1,960 712 662 581 600 538
8 525 590 1,450 1,480 1,850 1,980 1,850 655 673 576 609 518
9 550 597 1,540 1,410 1,880 2,110 1,700 687 657 676 599 497
10 524 589 1,620 1,480 1,970 2,170 1,640 773 704 670 597 495
11 484 620 1,640 1,510 2,000 2,170 1,520 830 627 706 569 495
12 479 581 1,710 1,510 1,890 2,230 1,570 852 550 773 601 500
13 526 559 1,910 1,560 1,940 2,400 1,570 897 632 805 602 501
14 518 596 2,040 1,550 2,000 2,590 1,520 998 589 832 586 553
15 487 612 2,050 1,550 1,940 2,960 1,500 971 552 837 566 575
16 499 645 2,030 1,610 1,900 3,100 1,420 897 510 784 575 598
17 530 702 2,040 1,630 1,990 2,900 1,380 867 504 750 592 611
18 530 858 1,990 1,740 1,890 2,800 1,400 828 521 723 606 608
19 523 1,140 2,090 1,820 1,810 2,760 1,420 808 559 669 592 602
20 561 1,300 2,170 1,840 1,850 2,810 1,430 787 597 656 614 573
21 605 1,330 2,140 1,810 1,890 2,820 1,420 790 716 626 609 523
22 637 1,340 2,110 1,700 1,900 2,690 1,350 785 730 638 587 496
23 628 1,400 1,950 1,620 1,930 2,660 1,190 785 691 729 579 491
24 590 1,360 1,720 1,620 1,980 2,630 1,110 785 667 754 564 496
25 573 1,320 1,660 1,720 2,100 2,520 1,060 713 677 744 539 525
26 553 1,240 1,640 1,720 2,270 2,420 1,050 691 715 687 539 550
27 534 1,150 1,600 1,820 2,330 2,390 1,050 820 728 631 562 564
28 494 1,110 1,600 1,840 2,370 2,440 1,010 850 678 589 593 634
29 468 1,240 1,620 1,870 2,420 2,320 1,010 748 664 567 610 662
30 454   1,660 1,880 2,370 2,250 978 756 658 612 605 665
31 454   1,780   2,270   954 745   627   608