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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 2,200 823 1,140
2 889 776 1,400 1,770 2,600 4,560 5,150 802 2,580 2,040 812 1,220
3 845 678 1,340 1,710 2,780 4,040 5,050 726 1,820 1,830 793 1,140
4 836 637 1,260 1,720 3,090 3,740 4,070 657 1,370 1,500 755 1,050
5 781 620 1,190 1,760 3,600 3,920 3,670 654 1,170 1,300 715 984
6 755 609 1,130 1,740 3,690 3,740 3,230 625 1,020 1,180 712 918
7 760 634 1,180 1,620 3,570 3,490 3,620 574 939 1,100 692 898
8 779 648 1,300 1,500 3,120 2,760 3,080 542 1,030 1,050 665 838
9 712 547 1,720 1,400 2,670 2,390 2,440 637 961 1,070 656 825
10 698 577 2,590 1,430 2,690 2,680 2,000 1,030 1,060 994 650 799
11 1,010 676 3,380 1,480 2,790 2,810 1,770 970 1,120 1,020 640 769
12 883 650 3,430 1,530 2,450 2,650 1,680 1,040 1,110 979 640 760
13 804 667 3,590 1,570 2,390 2,430 1,580 998 1,120 947 634 900
14 780 699 3,560 1,830 2,460 2,230 1,450 851 1,110 1,120 614 2,010
15 733 722 3,240 2,010 2,280 2,300 1,300 746 1,080 1,240 593 3,040
16 724 735 2,560 2,300 2,080 2,500 1,210 663 1,320 1,160 580 3,510
17 1,030 720 2,460 2,310 1,970 2,600 1,150 597 1,630 1,060 575 3,020
18 1,230 708 2,180 2,640 1,960 2,950 1,100 553 1,660 984 562 2,620
19 1,110 998 1,910 2,770 1,970 3,000 1,040 574 1,560 919 578 2,310
20 1,210 1,570 1,790 2,500 2,380 3,090 1,020 733 1,400 866 563 2,080
21 1,230 1,920 1,610 2,460 2,760 3,280 1,070 1,250 1,240 821 558 1,880
22 1,210 2,110 1,510 2,310 2,700 3,630 1,060 955 1,170 803 563 1,650
23 1,360 1,970 1,410 2,200 2,400 3,960 1,060 874 1,370 782 571 1,470
24 1,090 1,890 1,390 2,120 2,210 4,010 1,030 931 1,550 791 586 1,570
25 946 1,830 1,370 2,040 2,180 4,790 1,020 828 1,660 806 584 1,580
26 884 1,730 1,330 1,970 3,060 5,010 1,000 731 1,760 773 624 1,550
27 830 1,590 1,300 1,830 5,170 4,440 1,080 714 1,860 809 934 1,580
28 789 1,520 1,360 1,740 6,300 3,840 1,140 689 2,010 854 1,160 1,390
29 744 2,260 1,420 1,800 5,920 3,780 1,620 1,250 2,100 889 1,130 1,270
30 565   1,570 1,950 5,730 4,140 1,370 1,770 2,240 860 1,060 1,120
31 750   1,910   5,910   1,070 2,090   841   998