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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 05454500 Iowa River at Iowa City, IA


Johnson County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°39'24", Longitude  91°32'27" NAD27
Drainage area 3,271  square miles
Gage datum 617.27 feet above NGVD29
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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 1958-10-01 -> 2021-09-30)

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 1,590 1,320 2,850 3,920 3,940 4,170 4,500 2,670 1,920 1,370 1,570 1,710
2 1,540 1,340 2,860 3,810 3,700 4,210 4,520 2,630 1,930 1,340 1,670 1,710
3 1,400 1,320 2,920 3,740 3,600 4,130 4,540 2,560 1,920 1,370 1,730 1,660
4 1,380 1,350 2,900 3,750 3,540 4,150 4,530 2,400 1,910 1,420 1,700 1,640
5 1,360 1,390 2,920 3,850 3,500 4,100 4,550 2,370 1,890 1,400 1,710 1,640
6 1,300 1,360 2,860 3,940 3,590 4,030 4,560 2,380 1,850 1,410 1,680 1,660
7 1,250 1,390 2,890 3,990 3,690 4,140 4,480 2,310 1,760 1,360 1,640 1,620
8 1,250 1,470 3,060 4,060 3,570 4,240 4,420 2,250 1,660 1,350 1,570 1,580
9 1,260 1,550 3,150 4,130 3,470 4,270 4,300 2,240 1,660 1,320 1,510 1,590
10 1,220 1,590 3,280 4,110 3,490 4,260 4,170 2,270 1,750 1,390 1,510 1,610
11 1,190 1,550 3,330 3,970 3,420 4,240 4,180 2,210 1,710 1,460 1,560 1,590
12 1,240 1,530 3,470 3,900 3,510 4,310 4,140 2,200 1,630 1,460 1,580 1,570
13 1,210 1,540 3,760 3,940 3,590 4,420 4,090 2,160 1,660 1,460 1,560 1,640
14 1,080 1,570 3,950 3,930 3,680 4,520 4,200 2,180 1,650 1,450 1,570 1,650
15 1,050 1,600 4,020 3,920 3,700 4,680 4,080 2,110 1,630 1,540 1,570 1,720
16 1,040 1,610 4,030 3,960 3,690 4,560 4,010 2,140 1,550 1,560 1,580 1,780
17 1,080 1,620 3,950 3,960 3,850 4,540 4,000 2,020 1,550 1,580 1,500 1,740
18 1,030 1,730 3,970 4,000 3,830 4,490 3,820 2,020 1,500 1,580 1,490 1,680
19 1,030 1,840 3,980 3,780 3,760 4,440 3,750 2,030 1,420 1,460 1,510 1,600
20 1,070 1,920 3,890 3,670 3,650 4,390 3,710 2,120 1,400 1,500 1,600 1,560
21 1,090 2,100 3,620 3,620 3,640 4,370 3,670 1,980 1,440 1,500 1,670 1,520
22 1,150 2,200 3,670 3,590 3,680 4,410 3,590 1,890 1,380 1,480 1,600 1,460
23 1,250 2,220 3,700 3,610 3,640 4,380 3,440 1,960 1,380 1,500 1,530 1,390
24 1,310 2,300 3,720 3,600 3,580 4,260 3,330 1,940 1,380 1,520 1,550 1,360
25 1,380 2,470 3,740 3,590 3,550 4,280 3,250 1,880 1,370 1,590 1,600 1,390
26 1,370 2,580 3,870 3,710 3,550 4,320 3,170 1,840 1,300 1,660 1,620 1,400
27 1,340 2,780 3,940 3,850 3,570 4,390 3,140 1,820 1,300 1,660 1,650 1,410
28 1,240 2,830 3,990 3,980 3,550 4,420 3,140 1,850 1,340 1,630 1,650 1,460
29 1,210 2,620 4,040 4,030 3,800 4,400 3,130 1,870 1,330 1,600 1,640 1,540
30 1,240   4,070 4,060 3,880 4,530 2,970 1,840 1,390 1,580 1,680 1,630
31 1,270   4,000   4,020   2,840 1,900   1,520   1,600