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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 1,530 1,280 2,810 3,810 3,880 4,200 4,410 2,610 1,830 1,310 1,520 1,650
2 1,480 1,290 2,840 3,730 3,650 4,220 4,430 2,570 1,830 1,290 1,610 1,660
3 1,360 1,270 2,900 3,670 3,560 4,180 4,470 2,490 1,830 1,310 1,670 1,610
4 1,330 1,310 2,880 3,680 3,520 4,190 4,460 2,320 1,820 1,360 1,640 1,590
5 1,310 1,340 2,900 3,770 3,500 4,140 4,470 2,300 1,800 1,340 1,660 1,590
6 1,250 1,310 2,840 3,840 3,600 4,080 4,440 2,290 1,760 1,360 1,620 1,600
7 1,200 1,350 2,860 3,900 3,690 4,180 4,290 2,230 1,680 1,310 1,590 1,570
8 1,200 1,430 3,020 3,960 3,590 4,260 4,240 2,160 1,580 1,290 1,520 1,530
9 1,210 1,510 3,110 4,030 3,500 4,270 4,120 2,150 1,580 1,270 1,460 1,540
10 1,170 1,550 3,230 4,000 3,540 4,260 4,000 2,170 1,660 1,340 1,460 1,560
11 1,160 1,520 3,270 3,850 3,480 4,220 4,020 2,110 1,620 1,410 1,510 1,540
12 1,200 1,500 3,400 3,790 3,580 4,290 3,980 2,100 1,540 1,410 1,530 1,530
13 1,170 1,510 3,660 3,830 3,660 4,380 3,940 2,060 1,580 1,400 1,510 1,590
14 1,040 1,540 3,840 3,820 3,730 4,440 4,080 2,080 1,560 1,400 1,520 1,610
15 1,010 1,570 3,900 3,810 3,740 4,570 4,010 2,040 1,540 1,480 1,520 1,680
16 1,010 1,570 3,910 3,850 3,730 4,450 3,950 2,070 1,470 1,500 1,530 1,740
17 1,050 1,580 3,830 3,850 3,870 4,430 3,930 1,940 1,470 1,510 1,460 1,690
18 1,010 1,690 3,850 3,870 3,820 4,380 3,750 1,930 1,420 1,520 1,450 1,640
19 1,000 1,800 3,870 3,660 3,740 4,350 3,680 1,940 1,350 1,400 1,470 1,560
20 1,040 1,890 3,780 3,570 3,630 4,330 3,640 2,030 1,330 1,440 1,550 1,520
21 1,060 2,060 3,530 3,540 3,630 4,310 3,600 1,890 1,370 1,440 1,610 1,480
22 1,120 2,160 3,580 3,520 3,680 4,340 3,530 1,810 1,310 1,420 1,550 1,420
23 1,210 2,180 3,620 3,550 3,680 4,310 3,380 1,870 1,310 1,440 1,480 1,350
24 1,270 2,240 3,650 3,560 3,610 4,190 3,280 1,850 1,310 1,470 1,500 1,310
25 1,340 2,390 3,650 3,570 3,610 4,230 3,180 1,800 1,300 1,540 1,550 1,340
26 1,330 2,500 3,780 3,700 3,610 4,290 3,080 1,760 1,230 1,600 1,570 1,350
27 1,290 2,730 3,840 3,820 3,640 4,350 3,030 1,750 1,230 1,600 1,590 1,370
28 1,200 2,780 3,890 3,940 3,620 4,360 3,010 1,770 1,270 1,580 1,600 1,410
29 1,170 2,490 3,940 3,970 3,860 4,330 3,010 1,780 1,260 1,550 1,580 1,490
30 1,200   3,960 4,000 3,930 4,450 2,860 1,760 1,310 1,530 1,620 1,570
31 1,220   3,890   4,070   2,740 1,810   1,480   1,540