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USGS Daily Statistics for the Nation

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 05484800 Walnut Creek at Des Moines, IA


Polk County, Iowa
Hydrologic Unit Code 07100006
Latitude  41°35'14.9", Longitude  93°42'11.9" NAD83
Drainage area 78.4  square miles
Gage datum 800.82 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 1971-10-01 -> 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 26 58 48 70 122 109 239 38 50 39 55 37
2 24 40 65 80 113 103 122 39 37 53 43 34
3 26 31 61 82 117 95 90 39 39 33 55 32
4 23 29 70 68 131 116 118 65 36 34 54 33
5 21 29 71 68 113 127 98 54 38 33 44 33
6 20 28 67 66 106 128 103 49 29 36 39 32
7 20 28 70 64 140 100 99 38 51 43 31 29
8 19 25 79 66 120 148 80 46 45 37 29 27
9 18 24 81 74 154 205 102 122 43 35 34 26
10 20 30 85 70 183 157 103 85 66 42 41 24
11 20 28 94 78 126 132 109 99 41 62 43 24
12 20 26 92 88 131 169 104 66 34 47 39 26
13 18 28 130 85 148 158 74 52 37 44 36 47
14 18 30 119 101 106 170 64 40 25 52 32 67
15 19 32 88 109 93 168 57 43 24 45 31 41
16 33 34 75 118 97 174 52 36 34 34 29 32
17 33 46 76 106 126 141 66 29 38 32 31 27
18 25 70 86 138 111 144 91 47 38 31 32 25
19 21 69 87 99 124 124 73 42 48 28 38 24
20 25 59 82 108 130 127 69 61 41 24 36 25
21 26 54 70 105 146 104 60 52 38 45 32 27
22 25 51 68 107 119 102 55 34 44 53 28 26
23 24 59 71 94 124 117 41 57 37 52 30 31
24 23 52 84 102 209 121 73 32 34 61 32 31
25 25 45 68 122 184 199 51 35 62 48 28 32
26 25 44 67 117 151 159 62 51 50 41 31 30
27 25 55 62 128 147 163 50 87 31 39 34 40
28 23 54 62 104 139 128 59 70 27 43 38 38
29 23 70 61 100 146 131 70 138 45 43 37 33
30 24   76 158 128 163 49 64 36 47 36 38
31 26   78   111   68 51   45   33