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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 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 5 - 7 years of record in, ft3/s   (Calculation Period 2010-10-01 -> 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
1 957 804 1,460 1,890 2,170 5,310 4,670 910 2,880 2,200 863 1,140
2 889 776 1,400 1,770 2,600 4,560 5,150 802 2,580 2,040 854 1,220
3 845 678 1,340 1,710 2,780 4,040 5,050 726 1,820 1,830 836 1,140
4 836 637 1,260 1,720 3,090 3,740 4,070 657 1,370 1,500 795 1,050
5 781 620 1,190 1,760 3,600 3,920 3,440 654 1,170 1,300 750 984
6 755 609 1,130 1,740 3,690 3,740 3,230 625 1,020 1,180 746 918
7 760 634 1,180 1,620 3,570 3,490 3,620 574 939 1,100 726 898
8 779 648 1,300 1,500 3,120 2,760 3,080 542 1,030 1,050 702 838
9 712 547 1,720 1,400 2,670 2,390 2,440 637 961 1,070 690 825
10 698 577 2,590 1,430 2,690 2,680 2,000 1,030 1,060 994 686 799
11 1,010 676 3,380 1,480 2,790 2,810 1,770 970 1,120 948 675 769
12 883 650 3,430 1,530 2,450 2,650 1,680 1,040 1,110 912 674 760
13 804 667 3,590 1,570 2,390 2,430 1,580 998 1,120 887 668 900
14 780 699 3,560 1,830 2,460 2,230 1,450 851 1,110 1,100 647 2,010
15 733 722 3,240 2,010 2,280 2,300 1,300 746 1,080 1,220 624 3,040
16 724 735 2,560 2,300 2,080 2,500 1,210 663 1,320 1,120 609 3,510
17 1,030 720 2,460 2,310 1,970 2,600 1,150 597 1,630 1,050 604 3,020
18 1,230 708 2,180 2,640 1,960 2,950 1,100 553 1,660 985 589 2,620
19 1,110 998 1,910 2,770 1,970 3,000 1,040 574 1,560 923 606 2,310
20 1,210 1,570 1,790 2,500 2,380 3,090 1,020 733 1,400 873 590 2,080
21 1,230 1,920 1,610 2,460 2,760 3,280 1,070 1,120 1,240 829 588 1,880
22 1,210 2,110 1,510 2,310 2,700 3,630 1,060 955 1,170 791 596 1,650
23 1,360 1,970 1,410 2,200 2,400 3,960 1,060 874 1,370 763 605 1,470
24 1,090 1,890 1,390 2,120 2,210 4,010 1,030 931 1,550 788 624 1,570
25 946 1,830 1,370 2,040 2,180 4,790 1,020 828 1,660 809 624 1,580
26 884 1,730 1,330 1,970 3,060 5,010 1,000 731 1,760 771 673 1,550
27 830 1,590 1,300 1,830 5,170 4,440 1,080 714 1,860 817 934 1,580
28 789 1,520 1,360 1,740 6,300 3,840 1,140 689 2,010 877 1,160 1,390
29 744 2,260 1,420 1,800 5,920 3,780 1,620 1,250 2,100 925 1,130 1,270
30 565   1,570 1,950 5,730 4,140 1,370 1,770 2,240 898 1,060 1,120
31 750   1,910   5,910   1,070 2,090   880   998