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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 05465500 Iowa River at Wapello, IA


Louisa County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°10'41.11", Longitude  91°10'55.53" NAD83
Drainage area 12,500  square miles
Gage datum 538.08 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 -> 2025-09-30)

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 5,570 4,630 9,870 16,400 15,600 17,200 16,900 9,170 7,640 7,140 6,380 5,960
2 5,510 4,600 9,760 16,800 15,500 16,900 17,100 8,790 7,290 6,870 6,630 6,010
3 5,540 4,650 9,850 17,200 14,900 16,800 16,600 8,730 7,120 6,590 6,920 6,070
4 5,310 4,750 10,200 17,100 15,000 16,400 16,100 8,560 6,990 6,580 6,900 5,860
5 5,130 4,730 10,800 17,200 15,000 16,100 15,700 8,280 6,880 6,580 6,800 5,770
6 4,980 4,820 11,200 17,000 14,800 15,900 15,400 8,260 6,660 6,760 6,870 5,730
7 4,900 4,900 10,900 16,700 14,500 15,400 15,900 8,170 6,650 6,890 6,700 5,660
8 4,790 5,050 10,700 16,300 14,700 15,300 15,600 8,130 6,670 6,950 6,420 5,580
9 4,780 5,300 11,100 16,000 14,900 15,300 14,900 8,150 6,550 6,890 6,170 5,450
10 4,720 5,370 12,100 15,800 15,400 15,000 14,400 8,070 6,840 6,790 5,980 5,300
11 4,660 5,430 12,800 16,000 15,900 15,100 14,300 7,940 6,750 6,790 5,980 5,260
12 4,640 5,450 13,300 15,900 16,100 15,400 14,300 7,880 6,520 6,720 5,950 5,210
13 4,680 5,330 13,800 15,400 15,900 16,300 13,900 7,830 6,380 6,610 5,960 5,120
14 4,700 5,250 14,300 15,400 15,900 17,200 13,900 7,650 6,520 6,550 5,970 5,260
15 4,790 5,400 14,900 15,300 15,800 17,600 13,800 7,480 6,420 6,660 5,920 5,540
16 4,820 5,650 15,000 15,100 15,400 18,000 13,300 7,350 6,270 6,630 5,960 5,970
17 4,760 5,780 15,000 15,100 15,200 18,000 12,700 7,460 5,900 6,530 6,070 6,060
18 4,680 5,980 15,100 15,500 15,300 18,000 12,400 7,420 5,930 6,630 6,150 5,900
19 4,470 6,250 15,700 16,300 15,800 17,600 12,400 7,020 6,040 6,740 6,240 5,600
20 4,500 6,670 16,600 16,500 15,300 16,900 12,500 6,800 6,060 6,610 6,070 5,390
21 4,580 7,440 17,000 16,400 14,800 16,600 12,300 6,910 6,140 6,240 6,050 5,220
22 4,630 8,560 17,100 16,700 14,400 16,500 12,000 6,860 6,370 5,970 6,130 5,080
23 4,770 9,270 16,700 16,600 14,300 16,600 11,500 6,890 6,460 5,850 6,210 5,050
24 4,860 9,650 16,400 16,100 14,700 16,600 11,400 7,000 6,530 5,980 6,090 5,000
25 4,870 9,930 16,200 15,700 14,900 16,900 11,200 7,000 6,530 6,160 5,980 5,110
26 4,770 9,740 15,600 15,500 15,200 17,100 10,800 6,930 6,550 6,370 5,970 5,260
27 4,800 9,450 15,600 15,400 15,800 17,200 10,600 7,070 7,040 6,390 6,100 5,320
28 4,800 9,710 15,400 15,300 16,500 17,200 10,600 7,330 7,260 6,300 6,170 5,380
29 4,690 9,040 15,400 15,200 16,900 16,900 10,400 7,710 7,550 6,200 6,130 5,460
30 4,620   15,600 15,300 17,400 16,700 10,100 7,830 7,460 6,180 6,010 5,600
31 4,570   15,900   17,600   9,660 7,870   6,240   5,640