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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 05474000 Skunk River at Augusta, IA


Des Moines County, Iowa
Hydrologic Unit Code 07080107
Latitude  40°45'13.14", Longitude  91°16'37.52" NAD83
Drainage area 4,312  square miles
Gage datum 521.08 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 1914-10-01 -> 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 1,520 1,330 3,580 4,410 4,300 5,230 4,290 2,130 1,690 1,740 1,650 1,530
2 1,400 1,340 3,310 4,460 4,290 5,260 3,950 1,930 1,570 1,750 1,830 1,660
3 1,300 1,400 3,320 4,370 4,360 4,970 3,700 1,880 1,470 1,770 1,930 1,710
4 1,240 1,460 3,640 4,060 4,750 4,810 3,780 2,010 1,530 1,680 1,930 1,580
5 1,340 1,720 4,060 4,040 4,710 4,570 4,020 2,170 1,470 1,740 1,740 1,490
6 1,530 1,660 4,140 4,070 4,430 4,540 3,990 2,380 1,380 1,720 1,580 1,450
7 1,510 1,750 3,960 3,910 4,290 4,420 3,950 2,250 1,370 1,670 1,510 1,390
8 1,480 1,760 3,830 3,670 4,190 4,340 4,010 2,110 1,430 1,680 1,350 1,400
9 1,530 1,840 3,910 3,670 4,380 4,450 3,780 2,020 1,450 1,610 1,280 1,310
10 1,420 1,840 4,360 3,700 4,460 4,630 3,570 1,980 1,650 1,610 1,290 1,210
11 1,290 1,870 4,820 3,890 4,710 4,530 3,720 1,900 1,700 1,720 1,370 1,210
12 1,220 1,890 5,250 3,820 4,910 4,570 3,630 1,880 1,730 1,670 1,340 1,250
13 1,240 1,890 5,390 3,720 5,070 5,010 3,240 1,980 1,890 1,550 1,340 1,200
14 1,210 1,990 5,290 3,690 5,050 5,000 2,950 1,970 1,990 1,550 1,400 1,240
15 1,170 2,050 5,280 3,770 4,960 5,530 2,810 1,900 2,140 1,640 1,460 1,390
16 1,180 2,070 5,160 3,860 4,750 5,620 2,650 2,000 2,060 1,580 1,450 1,490
17 1,240 2,120 5,110 3,890 4,520 5,550 2,560 2,050 1,790 1,440 1,600 1,460
18 1,320 2,350 5,090 3,960 4,550 5,580 2,470 1,940 1,740 1,600 1,830 1,370
19 1,400 2,530 5,250 4,230 4,530 5,720 2,510 1,760 1,830 1,690 1,850 1,250
20 1,360 2,910 5,300 4,740 4,210 5,640 2,630 1,650 1,760 1,560 1,740 1,180
21 1,370 3,400 5,070 5,130 4,120 5,530 2,640 1,590 1,670 1,370 1,730 1,150
22 1,390 3,540 4,700 5,080 4,100 5,590 2,760 1,540 1,760 1,220 1,550 1,150
23 1,520 3,600 4,540 5,080 4,120 5,400 2,560 1,470 1,860 1,300 1,540 1,160
24 1,610 3,770 4,360 4,970 4,380 5,110 2,530 1,530 1,940 1,350 1,530 1,270
25 1,560 3,860 4,520 5,120 4,570 5,330 2,450 1,410 2,010 1,390 1,470 1,530
26 1,470 3,910 4,550 4,800 4,870 5,220 2,440 1,540 2,010 1,440 1,520 1,510
27 1,490 3,860 4,550 4,440 5,240 4,960 2,390 1,660 2,090 1,440 1,560 1,460
28 1,450 3,760 4,480 4,320 5,260 4,770 2,210 1,770 1,910 1,370 1,530 1,550
29 1,370 3,130 4,460 4,070 5,580 4,770 2,150 1,660 1,800 1,260 1,510 1,640
30 1,340   4,350 3,990 5,680 4,490 2,140 1,600 1,750 1,390 1,550 1,600
31 1,370   4,300   5,450   2,300 1,660   1,460   1,540