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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 -> 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 29 19 34 70 113 119 297 42 58 35 33 31
2 27 18 58 72 107 102 107 32 78 48 35 34
3 30 26 52 71 106 101 75 39 76 34 42 28
4 23 27 38 65 108 87 82 55 76 28 42 25
5 22 19 51 59 101 101 113 31 63 29 36 24
6 21 19 40 63 101 166 95 28 53 32 41 22
7 22 36 44 60 112 111 70 28 75 40 33 21
8 22 28 56 54 94 169 61 23 47 51 27 20
9 19 26 72 46 104 123 66 101 39 64 25 19
10 22 28 108 48 82 154 59 96 52 61 28 18
11 22 21 125 55 98 98 77 174 43 40 37 18
12 20 17 143 80 108 193 70 81 33 31 30 17
13 17 23 205 69 142 139 46 43 29 32 31 39
14 18 29 195 66 87 167 42 33 22 62 28 79
15 17 30 113 79 75 170 39 28 20 57 25 45
16 23 27 88 62 65 105 35 27 37 41 24 33
17 26 28 77 61 79 98 32 26 42 35 23 28
18 21 28 78 82 75 97 63 31 37 36 23 26
19 18 36 79 63 89 100 52 39 40 31 25 22
20 17 34 80 77 98 103 71 50 30 27 22 22
21 22 32 67 79 162 109 52 38 43 41 22 22
22 19 33 65 103 125 90 36 24 51 50 20 22
23 22 37 68 97 149 120 30 27 33 67 21 26
24 28 33 97 92 219 103 40 23 37 57 23 33
25 25 28 83 153 207 142 31 19 47 47 22 34
26 22 28 74 148 190 215 38 22 45 37 26 32
27 21 49 66 165 228 190 47 29 33 34 31 43
28 19 36 62 129 172 123 122 30 28 39 28 36
29 21 34 59 99 153 91 62 43 28 52 25 32
30 17   69 105 175 151 51 31 31 57 25 30
31 19   75   135   62 30   40   32