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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 06607500 Little Sioux River near Turin, IA


Monona County, Iowa
Hydrologic Unit Code 10230003
Latitude  41°57'54.1", Longitude  95°58'20.1" NAD83
Drainage area 3,526  square miles
Gage datum 1,019.91 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 1958-10-01 -> 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
1 768 615 1,550 3,490 2,850 3,160 3,590 1,470 1,130 1,020 942 909
2 784 617 1,600 3,490 2,890 3,140 3,310 1,460 994 1,020 950 902
3 757 614 1,560 3,390 2,970 2,960 3,060 1,350 971 1,030 937 886
4 741 623 1,650 3,410 2,940 2,790 2,900 1,300 961 1,030 919 875
5 734 638 1,720 3,380 2,890 2,870 2,850 1,340 943 1,030 916 848
6 722 655 1,690 3,370 2,930 2,750 2,800 1,300 898 1,050 919 832
7 716 650 1,730 3,390 3,080 2,770 2,720 1,200 893 1,090 921 819
8 703 645 1,750 3,380 3,000 3,020 2,610 1,170 878 1,140 911 822
9 693 683 1,830 3,320 2,880 3,010 2,600 1,250 888 1,160 918 802
10 694 818 1,840 3,220 2,840 2,890 2,510 1,290 871 1,190 923 793
11 673 812 1,860 3,110 2,890 2,810 2,470 1,160 840 1,210 918 789
12 655 774 2,010 3,030 2,870 2,910 2,390 1,110 859 1,210 935 803
13 638 767 2,410 2,980 2,810 3,000 2,360 1,100 947 1,180 944 827
14 640 808 2,850 2,960 2,790 3,230 2,350 1,040 882 1,150 941 885
15 633 838 3,080 2,920 2,730 3,470 2,290 1,010 819 1,130 939 964
16 632 860 2,790 2,860 2,710 3,770 2,240 1,020 842 1,120 943 952
17 624 916 2,660 2,830 2,720 3,820 2,440 1,010 910 1,120 953 914
18 625 1,050 2,860 2,790 2,740 3,700 2,390 1,070 967 1,100 954 877
19 618 1,520 3,120 2,740 2,830 3,650 2,330 1,060 985 1,070 966 846
20 630 1,460 3,190 2,750 2,750 3,640 2,240 1,040 981 1,050 980 827
21 634 1,500 3,000 2,770 2,720 4,060 2,070 1,070 1,020 1,020 978 815
22 624 1,430 2,850 2,790 2,720 4,110 2,040 1,110 1,140 1,010 978 789
23 625 1,400 2,880 2,810 2,840 3,790 1,990 1,130 1,250 1,010 988 770
24 615 1,340 2,840 2,770 2,870 3,880 2,020 1,060 1,320 1,020 979 744
25 603 1,310 2,870 2,790 2,840 3,950 1,900 1,060 1,330 1,000 957 752
26 595 1,330 2,850 2,830 3,030 4,070 1,740 1,040 1,260 986 946 779
27 582 1,320 2,880 2,970 3,080 4,250 1,640 1,010 1,180 967 936 808
28 568 1,560 3,020 3,020 3,340 4,180 1,650 1,020 1,120 955 933 815
29 566 1,530 3,290 2,940 3,440 3,930 1,640 1,080 1,100 942 919 794
30 568   3,560 2,880 3,190 3,820 1,540 1,140 1,070 930 913 764
31 587   3,510   3,170   1,530 1,200   942   756