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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 05452500 Iowa River near Belle Plaine, IA


Iowa County, Iowa
Hydrologic Unit Code 07080208
Latitude  41°51'32.6", Longitude  92°16'40.5" NAD83
Drainage area 2,455  square miles
Gage datum 749.76 feet above NAVD88
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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 1938-10-01 -> 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
1 726 627 1,970 2,590 1,800 2,780 2,520 963 1,140 1,010 871 679
2 686 642 1,950 2,370 1,770 3,330 2,350 906 1,110 1,120 901 710
3 638 642 1,770 2,210 1,870 3,080 2,290 918 1,150 1,120 850 726
4 625 684 1,610 2,160 1,980 3,070 2,300 920 1,390 1,100 841 722
5 708 763 1,680 2,110 2,010 3,510 2,250 897 1,390 1,170 875 707
6 1,190 865 1,950 2,100 2,090 3,320 2,190 845 1,290 1,270 887 697
7 1,010 827 2,270 2,040 2,110 3,030 2,120 728 1,150 1,260 866 680
8 1,090 810 2,210 1,920 2,040 2,690 2,030 685 1,090 1,230 842 655
9 1,040 816 2,150 1,830 1,990 2,520 1,990 718 1,090 1,240 822 631
10 860 855 2,110 1,870 2,100 2,530 1,820 719 1,040 1,300 804 604
11 750 797 2,130 1,910 2,120 2,500 1,760 728 1,020 1,290 766 577
12 697 770 2,090 1,880 2,020 2,600 1,680 730 1,030 1,190 753 557
13 624 750 2,230 1,880 1,910 3,050 1,570 739 993 1,150 733 593
14 612 740 2,440 1,890 1,860 3,370 1,570 677 901 1,170 728 751
15 604 737 2,530 1,850 1,800 3,270 1,540 740 793 1,210 703 770
16 656 737 2,820 2,000 1,820 3,350 1,520 811 819 1,160 689 789
17 796 750 2,830 1,990 1,790 3,240 1,350 771 872 1,080 682 912
18 820 728 2,700 1,900 1,790 2,890 1,290 688 821 1,010 741 912
19 806 886 2,920 1,840 1,990 2,960 1,240 661 816 942 706 845
20 832 1,180 2,990 1,840 2,240 3,090 1,140 655 827 888 682 805
21 794 1,320 2,950 1,790 2,810 3,120 1,100 715 807 843 665 784
22 733 1,290 2,900 1,770 3,060 3,250 1,050 765 841 849 654 760
23 711 1,380 2,830 1,780 2,830 3,250 1,040 742 1,060 932 647 747
24 725 1,510 2,690 1,820 2,760 3,350 991 685 971 930 644 765
25 721 1,510 2,490 1,850 2,740 3,200 954 664 901 909 643 752
26 685 1,620 2,410 1,820 2,710 2,980 944 763 917 859 646 788
27 677 1,590 2,490 1,840 2,610 3,030 907 863 939 836 688 807
28 678 1,870 2,470 1,950 2,650 2,890 904 871 936 825 702 824
29 703 2,240 2,560 1,870 2,740 2,780 1,100 899 972 805 694 825
30 663   2,510 1,840 2,680 2,670 1,050 969 1,020 787 669 809
31 575   2,770   2,670   993 1,070   776   772