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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 05488500 Des Moines River near Tracy, IA


Mahaska County, Iowa
Hydrologic Unit Code 07100009
Latitude  41°16'52.9", Longitude  92°51'38.96" NAD83
Drainage area 12,479  square miles
Gage datum 670.92 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 1969-10-01 -> 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 4,240 2,810 6,760 11,300 12,200 14,500 16,000 10,300 5,870 4,380 4,750 4,860
2 4,130 2,990 6,970 11,400 11,800 14,600 15,900 10,200 5,770 4,350 4,900 4,850
3 3,820 3,010 7,080 11,400 11,900 14,600 15,800 10,100 5,560 4,380 4,960 4,660
4 3,770 3,160 7,130 11,300 11,900 14,600 15,500 10,000 5,320 4,280 5,050 4,520
5 3,660 3,300 7,300 11,400 12,200 14,300 15,400 9,610 5,200 4,120 5,110 4,480
6 3,430 3,340 7,590 11,300 12,300 14,300 15,300 9,290 4,960 4,040 5,070 4,430
7 3,370 3,220 7,860 11,400 12,500 14,400 15,100 9,330 4,610 4,280 5,010 4,260
8 3,430 2,990 8,150 11,600 12,500 14,500 15,200 9,450 4,180 4,230 4,900 4,110
9 3,390 2,850 8,420 11,600 12,500 14,700 15,200 9,590 3,960 4,290 4,690 4,260
10 3,270 2,760 8,450 11,400 12,700 14,600 15,200 9,350 4,070 4,380 4,580 4,350
11 3,100 2,810 8,650 11,200 12,700 14,700 15,300 8,950 4,060 4,320 4,560 4,330
12 3,010 2,990 8,740 11,500 12,900 15,100 15,500 8,660 3,970 4,500 4,570 4,350
13 2,910 3,090 9,280 11,900 12,800 15,400 15,400 8,230 4,330 4,680 4,650 4,480
14 2,810 3,220 9,570 12,100 12,900 15,700 15,200 8,090 4,430 4,600 4,640 4,450
15 2,700 3,350 9,830 12,000 13,500 15,700 14,900 7,850 4,380 4,440 4,660 4,340
16 2,620 3,390 9,990 12,100 13,800 15,700 14,800 7,710 4,590 4,550 4,500 4,260
17 2,620 3,560 10,300 12,300 14,000 15,900 14,400 7,580 4,550 4,610 4,450 4,380
18 2,710 3,940 10,600 12,000 13,900 15,900 14,100 7,320 4,710 4,450 4,430 4,410
19 2,720 4,670 10,800 12,200 14,000 15,700 14,000 6,970 4,870 4,360 4,400 4,310
20 2,650 5,310 10,700 12,100 14,100 15,600 14,000 6,730 5,020 4,410 4,450 4,070
21 2,660 6,000 10,400 11,700 14,100 15,500 14,000 6,600 4,900 4,390 4,350 3,830
22 2,650 6,530 10,000 12,100 14,100 15,600 13,700 6,550 5,050 4,490 4,350 3,760
23 2,750 6,770 9,830 12,400 14,000 15,800 13,200 6,580 5,210 4,710 4,520 3,840
24 2,960 6,910 10,100 12,600 13,800 15,900 13,200 6,440 4,950 5,060 4,700 3,780
25 3,000 7,130 10,300 12,900 13,900 16,000 13,100 6,240 4,860 5,350 4,700 3,790
26 2,950 7,110 10,600 12,700 13,900 16,300 13,000 6,070 4,950 5,320 4,710 3,890
27 2,850 6,900 10,800 12,700 14,100 16,300 12,600 6,230 4,990 5,040 4,710 3,740
28 2,690 6,760 10,900 13,000 14,000 16,600 12,200 6,450 5,020 4,920 4,580 3,790
29 2,630 7,710 11,000 13,400 14,300 16,400 11,800 6,440 4,960 4,840 4,600 4,070
30 2,760   11,100 13,300 14,200 16,300 11,100 6,350 4,520 4,640 4,790 4,260
31 2,800   11,300   14,100   10,700 6,060   4,530   4,310