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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 05454500 Iowa River at Iowa City, IA


Johnson County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°39'24.06", Longitude  91°32'27.6" NAD83
Drainage area 3,271  square miles
Gage datum 617.10 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 1958-10-01 -> 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 1,550 1,290 2,840 3,860 3,910 4,110 4,420 2,570 1,840 1,310 1,520 1,680
2 1,500 1,310 2,880 3,760 3,670 4,130 4,430 2,530 1,850 1,290 1,610 1,690
3 1,370 1,290 2,940 3,690 3,570 4,080 4,450 2,460 1,850 1,310 1,670 1,630
4 1,350 1,320 2,920 3,710 3,530 4,100 4,440 2,310 1,840 1,360 1,640 1,620
5 1,320 1,360 2,940 3,800 3,510 4,050 4,460 2,290 1,820 1,340 1,660 1,610
6 1,270 1,330 2,880 3,890 3,600 3,990 4,470 2,300 1,780 1,360 1,620 1,630
7 1,220 1,360 2,900 3,940 3,700 4,090 4,340 2,230 1,690 1,310 1,590 1,600
8 1,220 1,430 3,060 4,010 3,590 4,180 4,290 2,170 1,590 1,290 1,520 1,550
9 1,230 1,520 3,160 4,070 3,490 4,220 4,160 2,160 1,590 1,270 1,460 1,560
10 1,190 1,560 3,280 4,040 3,540 4,210 4,040 2,180 1,680 1,340 1,460 1,580
11 1,170 1,530 3,320 3,890 3,470 4,190 4,060 2,120 1,640 1,410 1,510 1,560
12 1,220 1,510 3,440 3,840 3,560 4,260 4,010 2,110 1,560 1,410 1,530 1,550
13 1,190 1,520 3,720 3,880 3,630 4,360 3,960 2,070 1,600 1,400 1,510 1,610
14 1,060 1,550 3,890 3,860 3,690 4,450 4,070 2,090 1,580 1,400 1,520 1,630
15 1,030 1,580 3,950 3,860 3,700 4,600 3,960 2,030 1,560 1,480 1,520 1,710
16 1,030 1,590 3,960 3,890 3,690 4,480 3,890 2,060 1,490 1,500 1,530 1,760
17 1,060 1,590 3,880 3,900 3,840 4,460 3,870 1,940 1,490 1,510 1,460 1,720
18 1,020 1,700 3,900 3,910 3,810 4,410 3,700 1,940 1,440 1,520 1,450 1,660
19 1,020 1,820 3,920 3,710 3,740 4,380 3,620 1,950 1,360 1,400 1,470 1,580
20 1,050 1,910 3,840 3,610 3,620 4,350 3,580 2,040 1,350 1,440 1,550 1,540
21 1,080 2,080 3,580 3,570 3,620 4,330 3,540 1,900 1,390 1,440 1,610 1,500
22 1,140 2,190 3,630 3,550 3,650 4,350 3,460 1,820 1,330 1,420 1,550 1,440
23 1,230 2,200 3,670 3,580 3,610 4,320 3,320 1,880 1,320 1,440 1,480 1,370
24 1,280 2,270 3,700 3,600 3,540 4,200 3,220 1,870 1,330 1,470 1,500 1,330
25 1,350 2,420 3,700 3,600 3,510 4,240 3,140 1,810 1,310 1,540 1,550 1,360
26 1,350 2,530 3,830 3,730 3,510 4,290 3,050 1,780 1,250 1,600 1,570 1,370
27 1,310 2,770 3,890 3,860 3,530 4,360 3,020 1,760 1,250 1,600 1,590 1,380
28 1,210 2,810 3,940 3,970 3,510 4,360 3,020 1,790 1,290 1,580 1,600 1,430
29 1,180 2,620 3,990 4,010 3,760 4,330 3,010 1,800 1,280 1,550 1,580 1,510
30 1,220   4,010 4,040 3,830 4,450 2,850 1,770 1,330 1,530 1,620 1,590
31 1,240   3,940   3,970   2,730 1,820   1,480   1,560