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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 05485605 Fourmile Creek near Ankeny, IA DS1


Polk County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°43'02.4", Longitude  93°34'10.6" NAD83
Drainage area 62.0  square miles
Gage datum 864.94 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 2002-10-01 -> 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 28 20 35 75 116 122 309 30 61 37 34 32
2 27 19 60 74 105 104 108 26 82 50 37 35
3 30 27 54 75 106 103 75 37 80 36 38 29
4 23 28 37 69 105 85 84 55 79 30 42 26
5 22 20 46 63 100 95 117 31 66 31 35 24
6 21 20 38 66 102 169 98 28 55 34 42 23
7 22 38 41 62 97 113 71 28 79 41 33 21
8 22 30 53 56 88 174 59 23 49 53 27 20
9 19 27 71 48 100 126 66 105 40 67 26 20
10 22 30 109 50 80 159 60 100 54 64 29 18
11 22 22 127 57 98 101 79 181 45 42 38 19
12 20 18 147 84 110 201 72 83 35 32 31 18
13 17 24 212 72 145 144 47 44 30 34 32 40
14 18 30 202 69 89 173 43 33 23 65 27 82
15 17 32 115 83 77 177 38 28 21 60 25 47
16 23 28 91 63 67 108 35 27 39 43 23 34
17 26 29 78 62 81 101 32 26 44 37 22 29
18 22 29 84 85 77 101 65 32 39 37 23 27
19 19 37 85 65 92 99 54 41 42 33 23 23
20 17 35 86 80 97 102 73 52 31 28 21 23
21 22 33 73 82 101 111 54 40 45 42 21 23
22 20 34 69 108 91 92 37 25 53 52 20 23
23 23 38 73 101 140 124 31 28 35 70 21 27
24 29 33 103 96 217 106 42 24 39 60 23 34
25 26 29 87 160 207 148 31 19 49 49 22 36
26 23 29 75 153 190 224 39 23 47 39 26 33
27 22 50 69 164 233 198 49 30 35 35 31 44
28 20 37 65 130 175 121 127 31 29 41 28 36
29 22 34 62 100 156 89 64 44 30 54 25 32
30 18   73 107 180 155 47 30 32 59 26 30
31 19   80   139   38 31   40   30