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USGS Surface-Water 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 05451770 Iowa River at County Highway E49 near Tama, IA


Tama County, Iowa
Hydrologic Unit Code 07080208
Latitude  41°57'51.32", Longitude  92°38'11.58" NAD83
Drainage area 1,882  square miles
Gage datum 810.47 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 2010-10-01 -> 2024-09-30)

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 1,060 696 1,740 1,950 1,930 4,450 3,720 709 1,930 1,900 930 981
2 988 681 1,580 1,870 2,140 3,820 4,070 639 1,980 1,850 902 1,080
3 944 631 1,520 1,800 2,240 3,370 3,920 588 1,670 1,970 872 1,090
4 897 623 1,520 1,770 2,500 3,070 3,320 540 1,530 2,000 864 1,040
5 830 690 1,540 1,770 2,910 3,070 2,870 528 1,550 1,840 937 985
6 793 730 1,600 1,740 2,970 3,080 2,760 523 1,470 1,750 970 933
7 785 696 1,590 1,640 2,920 2,950 2,880 555 1,400 1,640 953 886
8 788 664 1,580 1,540 2,680 2,500 2,510 570 1,460 1,570 897 839
9 728 606 1,710 1,460 2,610 2,230 2,110 608 1,410 1,650 852 830
10 688 622 2,090 1,450 2,700 2,530 1,810 810 1,430 1,730 821 790
11 824 666 2,480 1,500 2,610 2,640 1,610 769 1,380 1,870 808 754
12 748 640 2,480 1,550 2,310 2,400 1,530 786 1,190 1,920 797 733
13 698 638 2,850 1,620 2,200 2,180 1,460 740 1,060 1,890 843 790
14 695 641 3,360 1,750 2,210 2,020 1,350 646 974 1,890 814 1,340
15 677 668 3,400 1,840 2,130 2,050 1,250 587 917 1,820 791 1,850
16 645 703 3,050 2,090 2,020 2,520 1,170 533 1,030 1,660 770 2,080
17 777 726 2,840 2,130 2,000 2,660 1,110 501 1,170 1,520 759 1,830
18 870 728 2,620 2,300 2,110 2,650 1,060 519 1,170 1,360 737 1,620
19 785 880 2,450 2,370 2,250 2,650 1,020 497 1,130 1,210 727 1,460
20 813 1,250 2,500 2,250 2,490 2,880 1,020 597 1,150 1,100 708 1,360
21 823 1,460 2,450 2,240 2,650 3,070 998 874 1,220 1,030 700 1,250
22 828 1,500 2,330 2,180 2,670 3,510 965 880 1,260 1,140 717 1,130
23 962 1,420 2,200 2,190 2,500 3,790 937 835 1,450 1,170 722 1,040
24 815 1,480 2,150 2,160 2,470 3,810 901 817 1,640 1,120 736 1,070
25 742 1,470 2,100 2,070 2,680 4,200 875 733 1,760 1,090 750 1,070
26 709 1,430 2,030 1,960 3,400 4,290 847 649 1,830 1,030 769 1,060
27 677 1,460 1,930 1,850 4,570 3,880 870 612 1,930 1,030 891 1,120
28 656 1,760 1,870 1,780 5,070 3,400 885 592 2,020 1,020 995 1,290
29 632 2,050 1,850 1,790 4,920 3,290 1,130 941 2,020 1,010 971 1,330
30 669   1,870 1,840 4,840 3,360 990 1,290 2,000 979 923 1,240
31 671   1,990   4,890   810 1,480   960   1,130