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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 06808820 West Nishnabotna River near Riverton, IA


Fremont County, Iowa
Hydrologic Unit Code 10240002
Latitude  40°41'13.7", Longitude  95°36'00.8" NAD27
Drainage area 1,647  square miles
Gage datum 900.00 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 2009-10-01 -> 2018-09-30)

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
1 902 825 942 988 2,380 2,170 2,670 1,120 1,280 1,850 948 933
2 893 815 944 929 2,220 2,340 2,400 1,050 1,740 2,030 932 888
3 898 804 902 912 2,140 2,170 2,170 1,210 1,210 1,730 928 866
4 840 774 884 881 1,980 3,840 2,070 1,440 1,080 1,520 909 889
5 801 779 856 847 1,830 3,000 2,890 1,370 986 1,780 895 856
6 811 794 836 820 1,730 2,750 2,850 1,080 918 1,710 895 826
7 817 805 848 796 1,810 2,290 2,520 1,040 961 1,730 896 811
8 847 803 862 796 1,890 2,350 2,210 1,090 1,010 1,540 881 811
9 845 773 879 786 1,710 2,500 2,060 1,880 994 1,420 877 809
10 808 769 920 782 2,150 2,520 1,860 1,490 2,140 1,350 861 791
11 799 777 920 776 2,870 2,870 1,790 1,240 1,660 1,330 846 780
12 779 802 863 784 2,870 3,080 1,850 1,120 1,260 1,270 848 770
13 746 813 834 795 2,600 2,820 1,820 1,020 1,160 1,240 877 1,180
14 755 800 820 949 2,470 3,040 1,740 944 1,070 1,330 912 2,250
15 776 804 826 1,710 2,210 3,130 1,900 896 992 1,290 878 2,490
16 784 925 812 1,410 2,060 2,990 1,980 907 951 1,260 861 2,140
17 810 1,260 817 1,220 2,450 2,930 1,810 909 918 1,190 929 1,680
18 801 1,600 826 1,190 2,360 2,510 1,560 1,020 1,010 1,140 1,080 1,390
19 835 1,320 779 1,280 2,250 2,530 1,470 1,260 1,190 1,120 1,100 1,250
20 845 1,370 760 1,480 2,690 2,380 1,870 1,200 1,340 1,090 998 1,180
21 869 1,410 744 1,500 2,790 2,600 1,740 1,020 1,060 1,060 949 1,120
22 891 1,210 744 1,460 2,300 2,930 1,570 1,400 984 1,040 932 1,080
23 867 1,100 736 1,390 2,110 2,890 1,410 1,510 1,130 1,070 921 1,120
24 838 1,050 745 1,360 2,000 2,940 1,340 1,200 1,280 1,090 899 1,260
25 824 1,010 761 1,350 2,040 2,810 1,300 1,030 1,370 1,070 872 1,220
26 820 978 757 1,310 2,150 2,930 1,260 972 1,220 1,050 853 1,140
27 816 931 750 1,350 3,090 3,150 1,240 1,070 1,140 1,030 890 1,110
28 810 920 730 1,530 2,830 3,550 1,190 1,470 1,050 1,000 888 1,070
29 815 1,590 748 1,460 2,490 2,770 1,230 1,600 998 971 877 1,040
30 813   1,060 1,940 2,580 2,410 1,180 1,540 1,040 957 889 1,010
31 809   1,070   2,440   1,120 1,380   965   948