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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 4,220 2,770 6,660 11,200 12,200 14,400 16,100 10,300 5,870 4,380 4,670 4,800
2 4,100 2,950 6,870 11,300 11,800 14,400 15,900 10,200 5,770 4,350 4,820 4,790
3 3,790 2,970 6,980 11,400 11,900 14,500 15,800 10,100 5,560 4,380 4,870 4,600
4 3,730 3,120 7,030 11,300 11,900 14,500 15,500 10,000 5,320 4,280 4,970 4,460
5 3,620 3,270 7,230 11,400 12,200 14,200 15,300 9,610 5,200 4,120 5,030 4,410
6 3,400 3,310 7,540 11,200 12,300 14,200 15,300 9,290 4,960 4,040 4,990 4,360
7 3,330 3,180 7,820 11,400 12,400 14,400 15,100 9,330 4,610 4,280 4,930 4,190
8 3,390 2,950 8,100 11,500 12,500 14,500 15,200 9,450 4,180 4,230 4,840 4,050
9 3,350 2,810 8,370 11,500 12,400 14,600 15,300 9,590 3,960 4,290 4,630 4,200
10 3,230 2,720 8,410 11,300 12,600 14,600 15,300 9,350 4,070 4,380 4,520 4,290
11 3,060 2,770 8,610 11,200 12,600 14,700 15,400 8,950 4,060 4,320 4,500 4,290
12 2,980 2,950 8,710 11,300 12,800 15,100 15,600 8,660 3,970 4,500 4,510 4,330
13 2,880 3,050 9,270 11,800 12,700 15,300 15,500 8,230 4,330 4,680 4,580 4,470
14 2,780 3,180 9,560 11,900 12,700 15,600 15,300 8,090 4,430 4,600 4,570 4,430
15 2,670 3,300 9,830 11,900 13,400 15,600 15,000 7,850 4,380 4,440 4,590 4,330
16 2,590 3,340 9,990 12,000 13,600 15,600 15,000 7,710 4,590 4,480 4,430 4,250
17 2,590 3,510 10,200 12,100 13,800 15,800 14,500 7,580 4,550 4,540 4,390 4,370
18 2,680 3,880 10,500 11,900 13,800 15,800 14,300 7,320 4,710 4,380 4,370 4,400
19 2,690 4,600 10,700 12,000 13,800 15,600 14,100 6,970 4,870 4,290 4,350 4,290
20 2,610 5,230 10,600 12,000 14,000 15,500 14,000 6,730 5,020 4,340 4,400 4,040
21 2,620 5,900 10,400 11,700 14,100 15,500 14,100 6,600 4,900 4,320 4,300 3,800
22 2,610 6,420 9,950 12,000 14,200 15,600 13,900 6,550 5,050 4,410 4,300 3,720
23 2,710 6,650 9,740 12,300 14,000 15,700 13,400 6,580 5,210 4,630 4,460 3,800
24 2,920 6,800 9,980 12,600 13,800 15,900 13,300 6,440 4,950 4,970 4,640 3,730
25 2,960 7,010 10,200 12,900 13,800 16,100 13,300 6,240 4,860 5,260 4,640 3,740
26 2,910 7,000 10,500 12,700 13,800 16,400 13,100 6,070 4,950 5,230 4,650 3,850
27 2,810 6,800 10,700 12,800 14,000 16,400 12,700 6,230 4,990 4,950 4,650 3,700
28 2,660 6,660 10,800 13,100 13,900 16,600 12,400 6,450 5,020 4,830 4,520 3,730
29 2,600 7,710 10,900 13,500 14,200 16,400 11,800 6,440 4,960 4,760 4,540 4,020
30 2,720   11,100 13,300 14,100 16,300 11,100 6,350 4,520 4,560 4,730 4,210
31 2,770   11,300   13,900   10,700 6,060   4,460   4,270