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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 05487520 Des Moines River near Swan, IA


Marion County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°29'21.84", Longitude  93°16'41.70" NAD83
Drainage area 11,700  square miles
Gage datum 699.24 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 2009-10-01 -> 2021-09-30)

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 5,980 3,300 6,700 14,100 13,600 22,000 22,800 10,600 7,430 8,090 6,950 5,730
2 5,550 3,310 6,350 14,200 13,900 22,400 22,800 10,000 8,380 9,140 6,830 6,050
3 5,290 3,460 6,240 14,000 14,200 21,700 22,600 9,930 9,070 9,640 6,730 6,850
4 5,140 3,600 6,320 14,000 14,500 20,900 22,000 9,590 8,970 9,770 6,540 7,270
5 4,770 3,420 6,390 13,700 14,600 20,600 21,400 9,400 8,110 9,810 6,380 6,960
6 4,710 3,300 6,420 13,400 15,100 20,200 20,700 9,130 7,550 9,710 6,130 6,180
7 4,590 3,150 6,730 13,000 15,700 19,400 19,900 9,090 7,220 9,720 6,020 5,430
8 4,520 3,130 7,220 13,000 15,400 19,000 19,400 8,870 7,470 9,900 6,020 4,820
9 4,490 2,950 8,490 12,600 14,700 18,800 18,700 9,610 7,640 10,500 5,520 4,510
10 4,280 2,880 10,700 12,200 15,500 18,500 18,100 9,120 8,350 10,600 5,180 4,440
11 4,040 2,830 12,400 12,100 16,100 18,400 17,300 9,290 9,030 10,900 5,180 4,420
12 3,690 2,820 12,400 11,800 17,500 18,600 16,500 9,430 9,540 10,700 5,140 4,320
13 3,520 2,730 12,100 12,100 19,100 18,500 15,800 9,260 9,510 10,500 5,300 4,410
14 3,380 2,740 12,300 12,900 17,500 18,400 15,100 8,920 9,020 10,400 5,470 4,830
15 3,360 2,880 12,500 13,700 17,000 18,100 14,600 8,530 7,830 10,400 5,530 4,840
16 3,310 3,240 13,200 14,700 16,000 18,500 13,800 8,150 7,350 10,100 5,550 5,180
17 3,520 3,980 13,400 14,200 15,700 18,700 13,300 7,550 7,180 9,650 5,520 5,560
18 3,700 4,500 13,900 14,400 16,100 19,300 12,900 7,480 7,020 9,140 5,430 5,600
19 3,650 5,220 14,200 14,200 16,400 19,800 13,000 7,380 7,400 8,790 5,060 5,790
20 3,460 6,340 14,900 14,700 16,600 21,100 13,700 7,570 7,100 8,450 5,050 5,940
21 3,340 6,780 15,000 14,500 17,200 22,100 13,500 8,190 7,360 8,200 5,200 6,060
22 3,380 6,750 14,800 14,500 17,300 22,200 13,000 8,700 7,750 8,110 5,410 5,800
23 3,700 6,710 14,600 14,800 17,100 22,400 12,500 9,200 8,070 8,260 5,380 5,610
24 3,800 7,150 14,500 14,700 17,200 21,900 12,000 9,470 8,170 7,890 5,470 5,500
25 3,810 7,250 14,100 14,600 18,100 21,900 11,400 8,690 8,360 7,730 5,460 5,330
26 3,590 7,200 13,700 14,700 18,700 22,400 11,000 7,640 8,840 7,280 5,250 5,310
27 3,470 7,130 13,300 14,900 19,300 22,700 11,100 6,750 8,940 6,950 5,490 5,330
28 3,430 7,010 13,000 14,700 20,100 23,000 10,900 6,030 8,780 6,840 5,650 5,780
29 3,230 12,200 12,600 14,100 21,500 23,200 11,000 5,880 8,590 6,640 5,660 5,990
30 3,180   13,400 13,400 21,900 22,900 11,100 6,680 8,620 6,850 5,640 6,070
31 3,210   13,800   22,100   11,300 7,000   6,970   6,030