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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 05453100 Iowa River at Marengo, IA


Iowa County, Iowa
Hydrologic Unit Code 07080208
Latitude  41°48'45.8", Longitude  92°03'52.6" NAD27
Drainage area 2,794  square miles
Gage datum 720.45 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 1956-10-01 -> 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 1,070 891 2,040 3,620 3,400 4,050 3,830 1,790 1,360 1,280 1,260 1,140
2 1,050 929 2,040 3,590 3,260 3,970 3,680 1,710 1,340 1,380 1,390 1,140
3 1,040 911 2,080 3,630 3,160 3,850 3,560 1,580 1,330 1,390 1,370 1,100
4 1,010 919 2,290 3,610 3,150 3,650 3,530 1,510 1,400 1,340 1,350 1,070
5 979 960 2,420 3,410 3,180 3,500 3,690 1,540 1,370 1,310 1,400 1,080
6 952 969 2,400 3,330 3,180 3,360 3,510 1,570 1,350 1,300 1,330 1,080
7 915 974 2,350 3,280 3,270 3,350 3,260 1,420 1,270 1,270 1,260 1,040
8 894 1,020 2,470 3,160 3,250 3,480 3,150 1,320 1,240 1,270 1,220 1,030
9 865 1,080 2,560 3,060 3,230 3,530 3,200 1,360 1,190 1,360 1,190 1,020
10 837 1,060 2,760 3,010 3,310 3,880 3,190 1,430 1,140 1,390 1,180 983
11 829 1,060 2,870 2,980 3,330 3,780 3,180 1,400 1,080 1,360 1,170 955
12 891 1,030 2,940 2,940 3,400 4,020 3,270 1,530 1,030 1,320 1,230 940
13 968 1,010 3,260 2,970 3,470 4,190 3,140 1,480 1,110 1,300 1,190 923
14 939 1,080 3,410 3,000 3,560 4,100 3,060 1,550 1,100 1,310 1,160 1,030
15 873 1,130 3,470 3,020 3,410 4,170 2,920 1,530 1,080 1,320 1,130 1,100
16 839 1,140 3,520 3,070 3,360 4,130 2,680 1,550 1,030 1,290 1,140 1,090
17 917 1,160 3,500 3,130 3,440 4,360 2,450 1,530 992 1,240 1,130 1,100
18 903 1,330 3,720 3,300 3,430 4,450 2,620 1,470 1,110 1,250 1,140 1,170
19 894 1,580 3,970 3,390 3,370 4,410 2,760 1,430 1,100 1,230 1,140 1,170
20 924 1,770 4,170 3,470 3,250 4,360 2,730 1,460 1,100 1,210 1,140 1,130
21 922 1,920 4,040 3,470 3,270 4,270 2,580 1,360 1,160 1,180 1,160 1,100
22 910 2,050 4,000 3,370 3,180 4,200 2,330 1,370 1,110 1,160 1,150 1,100
23 981 2,160 4,070 3,280 3,140 4,280 2,180 1,290 1,170 1,250 1,140 1,060
24 930 2,150 3,930 3,260 3,240 4,180 2,080 1,230 1,150 1,300 1,100 1,050
25 896 2,110 3,590 3,240 3,280 4,130 2,010 1,160 1,270 1,280 1,110 1,060
26 839 2,080 3,390 3,150 3,380 4,000 1,990 1,190 1,340 1,270 1,100 1,100
27 844 2,140 3,310 3,120 3,730 3,910 1,920 1,350 1,310 1,230 1,120 1,120
28 845 2,090 3,300 3,130 4,000 3,810 1,890 1,470 1,260 1,190 1,130 1,190
29 827 2,030 3,270 3,260 4,260 3,730 1,860 1,550 1,260 1,160 1,130 1,190
30 855   3,390 3,430 4,220 3,850 1,820 1,650 1,260 1,210 1,140 1,160
31 891   3,680   4,130   1,780 1,450   1,200   1,120