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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 05465100 Iowa River at Columbus Junction, IA


Louisa County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°16'42", Longitude  91°20'48" NAD27
Drainage area 12,261.00  square miles
Gage datum 557.82 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 2020-10-01 -> 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 2,530 3,290 8,550 7,030 10,300 19,100 20,100 3,360 3,360 1,840 2,570 2,300
2 2,260 3,320 8,640 7,880 10,300 17,900 19,600 3,330 4,990 1,830 2,520 2,320
3 2,460 3,250 9,270 10,500 11,000 16,000 18,200 3,250 6,310 1,780 2,570 2,350
4 2,640 3,280 9,820 10,100 13,500 14,700 17,600 3,140 7,210 1,740 2,590 2,340
5 2,730 3,310 10,400 9,490 14,300 13,700 16,700 3,090 6,670 1,720 2,730 2,310
6 2,810 3,320 11,100 9,420 14,200 13,100 15,900 2,960 4,730 1,720 2,910 2,290
7 2,780 3,410 11,300 9,520 14,500 13,200 14,500 2,880 3,980 1,730 2,860 2,250
8 2,720 3,450 10,000 9,220 15,200 13,500 13,900 2,840 3,870 1,720 2,730 2,260
9 2,640 3,600 9,150 8,810 16,000 13,300 8,940 3,050 3,820 1,760 2,680 2,260
10 2,590 3,780 8,950 8,460 16,200 13,000 8,660 3,330 3,590 1,820 2,620 2,250
11 2,530 3,940 8,510 7,910 16,200 12,500 10,000 3,170 3,430 1,850 2,630 2,340
12 2,390 3,980 7,900 7,380 16,500 11,900 10,800 3,470 3,220 1,960 2,780 2,440
13 2,340 3,950 7,330 7,220 17,000 11,400 8,210 3,580 2,950 2,280 2,880 2,500
14 2,420 3,890 6,680 6,960 17,400 10,600 7,250 3,550 2,790 2,370 2,880 2,470
15 2,420 3,840 6,470 6,750 17,100 9,780 7,480 3,230 2,630 2,410 2,940 2,550
16 2,430 3,770 6,300 6,590 16,200 9,140 7,870 2,970 2,510 2,320 3,120 2,640
17 2,420 3,700 6,150 7,020 15,000 8,630 7,060 2,800 2,380 2,170 3,170 2,500
18 2,460 3,870 5,990 8,020 14,100 8,480 6,410 2,660 2,340 2,080 3,100 2,380
19 2,710 4,230 5,980 8,250 13,700 9,020 5,910 2,640 2,270 2,000 2,930 2,320
20 2,930 5,330 6,620 8,070 13,600 10,400 5,590 2,840 2,220 1,930 2,780 2,440
21 2,960 6,530 7,310 8,100 14,200 11,200 5,240 2,520 2,140 1,910 2,790 2,590
22 2,990 6,620 7,560 8,190 14,400 11,400 4,870 2,460 2,090 1,830 2,740 2,600
23 3,000 6,500 7,460 8,820 15,600 10,800 4,530 2,450 2,040 1,780 2,640 2,470
24 3,030 5,970 8,320 10,700 16,000 10,700 4,260 2,520 2,010 1,790 2,600 2,250
25 3,030 5,180 8,130 11,400 17,600 11,000 4,030 2,680 1,980 2,350 2,580 2,240
26 3,000 4,700 7,900 11,500 19,000 13,500 3,800 2,750 1,980 3,300 2,580 2,490
27 2,950 5,120 7,950 11,200 20,200 14,800 3,630 2,770 1,970 2,920 2,480 2,730
28 2,930 8,950 7,880 10,900 21,300 16,100 3,410 2,620 1,920 2,760 2,410 2,900
29 3,030 1,810 7,550 10,600 21,100 16,800 3,340 2,530 1,900 2,770 2,370 2,990
30 3,100   7,110 10,300 20,300 18,600 3,550 2,450 1,870 2,890 2,340 2,930
31 3,240   6,960   19,800   3,540 2,470   2,780   2,750