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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 06486000 Missouri River at Sioux City, IA


Dakota County, Nebraska
Hydrologic Unit Code 10230001
Latitude  42°29'10.3", Longitude  96°24'47.1" NAD83
Drainage area 314,600  square miles
Gage datum 1,057.42 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 1952-10-01 -> 2024-09-30)

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 17,200 16,800 18,700 33,200 33,700 35,900 38,400 37,700 37,400 37,700 34,200 25,500
2 17,000 16,900 18,600 33,600 34,000 36,000 38,100 37,600 37,500 37,600 33,900 25,300
3 17,200 16,800 18,700 33,600 34,100 35,900 37,600 37,400 37,700 37,500 33,600 25,000
4 17,200 16,900 18,700 33,500 34,600 35,800 37,500 37,600 37,700 37,400 33,500 24,200
5 17,100 17,000 18,600 33,400 34,600 35,900 37,800 37,900 37,700 37,400 33,400 23,300
6 17,000 17,100 18,600 33,400 34,300 36,200 37,700 38,200 37,700 37,300 33,300 22,400
7 16,800 17,100 18,800 33,300 33,900 36,300 37,600 38,200 37,600 37,200 33,100 21,600
8 16,600 17,200 18,800 33,600 33,700 36,700 37,800 38,200 37,500 37,100 33,000 20,800
9 16,800 17,300 19,000 33,900 34,100 37,200 38,000 38,200 37,400 36,900 32,900 20,000
10 16,900 17,400 19,300 33,800 34,200 37,500 38,300 38,200 37,500 36,700 32,700 19,400
11 17,000 17,400 19,700 33,900 34,400 37,500 38,100 37,900 37,600 36,500 32,600 19,000
12 16,900 17,400 20,200 33,900 34,700 37,500 38,000 37,800 37,600 36,500 32,600 18,600
13 16,800 17,500 21,100 33,900 34,900 37,400 37,900 37,900 37,700 36,500 32,500 18,500
14 16,900 17,700 21,900 33,900 34,800 37,200 38,000 37,900 38,000 36,500 32,400 18,300
15 16,800 17,500 22,700 33,800 34,700 37,300 38,000 37,900 38,200 36,400 32,300 18,100
16 16,800 17,500 23,500 33,700 34,800 37,300 38,100 38,000 38,400 36,200 32,200 17,900
17 17,000 17,700 24,000 33,500 34,600 37,500 38,600 38,000 38,400 36,000 32,100 17,800
18 17,000 18,300 24,600 33,200 34,500 37,700 38,400 38,000 38,300 35,900 32,000 17,900
19 16,900 18,700 25,800 33,200 34,500 38,400 38,100 38,100 38,300 35,800 31,800 17,800
20 16,800 18,400 26,400 33,300 34,300 39,100 38,300 38,000 38,300 35,700 31,800 17,600
21 17,000 18,600 27,200 33,300 34,400 39,100 38,200 37,900 38,200 35,700 31,600 17,500
22 17,000 18,300 28,000 33,200 34,600 39,100 38,100 37,900 38,200 35,600 31,400 17,400
23 17,000 18,200 28,900 33,200 34,700 39,600 38,100 37,700 38,300 35,600 31,100 17,500
24 17,000 18,200 29,400 33,100 34,600 40,400 38,200 37,500 38,100 35,400 30,500 17,300
25 17,000 18,200 29,800 33,000 34,600 41,000 38,300 37,400 38,000 35,300 29,400 17,400
26 16,900 18,200 30,100 33,300 34,900 40,900 38,300 37,600 37,900 35,300 28,500 17,500
27 17,000 18,300 30,700 33,400 35,100 40,100 38,200 37,500 37,800 35,200 27,600 17,600
28 16,900 18,500 31,300 33,300 35,300 39,600 38,200 37,600 37,900 34,900 26,700 17,500
29 17,000 20,100 31,900 33,100 35,300 39,400 38,000 37,700 37,900 34,700 26,100 17,500
30 16,900   32,400 33,300 35,400 38,900 38,100 37,600 37,900 34,500 25,700 17,500
31 16,800   32,500   35,900   38,000 37,500   34,400   17,500