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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 06810000 Nishnabotna River above Hamburg, IA


Fremont County, Iowa
Hydrologic Unit Code 10240004
Latitude  40°36'04.3", Longitude  95°38'40.2" NAD83
Drainage area 2,806  square miles
Gage datum 892.31 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 1921-10-01 -> 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
1 734 720 1,610 1,810 2,020 2,470 2,420 1,240 1,250 902 894 712
2 710 764 1,650 1,640 2,060 2,800 2,260 1,190 1,260 1,060 870 724
3 690 742 1,800 1,550 1,980 2,610 2,170 1,270 1,080 948 862 724
4 644 775 1,730 1,460 1,910 2,630 2,220 1,230 1,040 862 837 713
5 641 868 1,870 1,480 1,890 2,700 2,280 1,140 1,100 912 793 696
6 688 863 1,840 1,500 1,950 2,780 2,360 1,240 1,200 976 767 687
7 675 829 1,810 1,440 2,080 2,630 2,130 1,180 1,150 991 745 678
8 638 810 1,650 1,400 2,390 2,780 2,010 1,410 1,190 963 731 668
9 624 870 1,540 1,450 2,540 2,920 2,130 1,360 1,220 1,010 769 638
10 610 891 1,630 1,560 2,580 2,810 2,220 1,200 1,140 941 761 617
11 610 923 1,750 1,550 2,620 2,650 2,120 1,180 1,110 1,050 734 657
12 596 878 2,090 1,560 2,330 3,000 1,970 1,360 1,050 1,250 748 677
13 590 847 2,440 1,510 2,260 3,210 1,960 1,340 1,110 1,030 775 687
14 597 836 2,320 1,480 2,160 3,630 1,820 1,230 1,290 922 751 789
15 600 885 2,260 1,610 2,040 4,100 1,740 1,200 1,320 1,000 730 866
16 647 920 2,070 1,680 1,990 3,810 1,610 1,110 1,350 979 755 843
17 753 993 2,100 1,570 2,110 3,670 1,490 1,100 1,230 980 782 795
18 760 1,160 2,170 1,520 2,080 3,190 1,670 1,070 1,080 967 811 738
19 773 1,410 2,270 1,500 2,000 3,080 1,800 980 981 929 818 708
20 737 1,670 2,280 1,470 1,960 2,910 1,660 1,000 996 878 790 697
21 718 1,560 2,040 1,490 2,210 2,860 1,560 1,050 938 824 766 686
22 730 1,510 1,790 1,570 2,480 2,970 1,640 1,080 899 877 753 681
23 763 1,330 1,720 1,570 2,400 2,910 1,530 1,080 911 859 768 726
24 708 1,310 1,670 1,580 2,370 3,100 1,540 1,110 944 880 802 729
25 688 1,220 1,650 1,630 2,590 3,000 1,650 1,130 940 869 798 709
26 680 1,300 1,600 1,670 2,880 2,700 1,770 1,100 1,040 809 784 703
27 657 1,440 1,670 1,770 2,880 2,580 1,680 1,090 1,080 762 760 728
28 642 1,590 1,700 1,830 2,760 2,830 1,500 1,120 928 739 730 806
29 630 1,940 1,760 1,710 2,820 2,580 1,410 1,160 907 728 707 839
30 625   1,730 1,870 2,860 2,280 1,440 1,190 847 754 711 845
31 672   1,780   2,660   1,440 1,220   843   824