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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 05481650 Des Moines River near Saylorville, IA


Polk County, Iowa
Hydrologic Unit Code 07100004
Latitude  41°40'49.2", Longitude  93°40'03.4" NAD83
Drainage area 5,841  square miles
Gage datum 787.17 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 1977-10-01 -> 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 1,750 946 2,760 6,440 6,670 7,750 8,830 4,000 2,710 2,290 2,360 1,940
2 1,680 940 2,810 6,460 6,720 7,590 8,800 3,830 2,720 2,290 2,420 1,960
3 1,570 950 2,940 6,430 6,900 7,400 8,470 3,680 2,540 2,330 2,360 1,930
4 1,460 930 2,950 6,390 7,180 7,170 8,120 3,590 2,390 2,380 2,330 1,940
5 1,430 938 2,970 6,430 7,290 7,070 7,880 3,480 2,220 2,400 2,270 1,890
6 1,420 960 3,080 6,470 7,310 7,110 7,770 3,360 2,110 2,490 2,240 1,870
7 1,410 981 3,170 6,410 7,250 7,110 7,380 3,240 2,060 2,560 2,340 1,810
8 1,390 945 3,210 6,430 7,090 7,050 7,100 3,200 2,080 2,520 2,250 1,770
9 1,340 928 3,180 6,540 6,990 6,990 7,150 3,090 2,070 2,600 2,100 1,790
10 1,300 927 3,160 6,570 7,100 6,980 7,170 2,990 2,110 2,740 2,130 1,750
11 1,210 993 3,150 6,500 7,230 7,210 7,130 2,900 2,170 2,760 2,090 1,660
12 1,120 1,040 3,360 6,510 7,250 7,430 7,200 2,740 2,190 2,740 2,050 1,600
13 1,040 1,100 3,760 6,630 7,130 7,450 7,320 2,700 2,110 2,670 2,060 1,600
14 998 1,160 4,140 6,720 7,160 7,330 7,210 2,710 1,950 2,680 2,090 1,630
15 994 1,210 4,500 6,730 7,360 7,440 7,020 2,750 1,910 2,770 2,090 1,680
16 995 1,320 4,780 6,790 7,560 7,520 6,700 2,650 1,930 2,730 2,080 1,800
17 975 1,400 4,990 6,770 7,600 7,760 6,360 2,550 1,940 2,680 2,130 1,830
18 937 1,570 5,090 6,780 7,560 8,020 6,310 2,460 1,970 2,610 2,130 1,650
19 948 1,750 5,200 6,820 7,540 8,280 6,210 2,380 1,970 2,580 2,080 1,540
20 948 2,000 5,400 6,850 7,470 8,360 6,020 2,480 2,040 2,520 2,160 1,560
21 962 2,280 5,410 6,760 7,350 8,420 5,900 2,560 2,130 2,500 2,230 1,660
22 959 2,540 5,310 6,810 7,250 8,550 5,620 2,700 2,290 2,480 2,160 1,730
23 974 2,760 5,360 6,940 7,150 8,470 5,400 2,870 2,420 2,440 2,040 1,740
24 990 2,780 5,460 7,020 7,020 8,650 5,310 2,880 2,360 2,520 2,030 1,680
25 995 2,750 5,610 6,990 6,870 8,850 5,200 2,820 2,300 2,520 2,000 1,640
26 926 2,810 5,870 6,850 6,890 8,840 5,150 2,750 2,290 2,420 1,970 1,570
27 971 2,840 6,080 6,680 7,120 8,750 4,990 2,610 2,330 2,370 1,970 1,590
28 924 2,810 6,220 6,670 7,430 8,750 4,730 2,520 2,350 2,290 1,980 1,670
29 885 4,020 6,270 6,730 7,590 8,670 4,480 2,500 2,380 2,310 1,920 1,790
30 899   6,360 6,690 7,640 8,660 4,390 2,600 2,380 2,310 1,910 1,880
31 952   6,450   7,750   4,220 2,630   2,320   1,850