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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 25 58 48 70 123 110 239 38 50 39 55 38
2 24 41 66 78 113 104 122 39 37 53 43 35
3 26 31 62 82 118 92 90 39 39 33 49 32
4 23 30 67 68 133 116 118 65 36 34 53 34
5 21 30 65 68 114 128 98 54 38 33 43 34
6 20 28 65 67 107 129 103 49 29 36 39 32
7 20 28 68 64 142 101 99 38 51 43 31 29
8 19 25 78 66 121 149 80 46 45 37 29 27
9 18 25 80 75 156 207 102 122 43 35 34 26
10 20 30 85 71 186 159 103 85 66 42 41 24
11 21 29 94 79 128 133 109 99 41 62 44 25
12 21 27 93 89 133 172 104 66 34 47 39 26
13 19 29 132 86 150 160 74 52 37 44 36 48
14 19 30 120 102 108 173 64 40 25 52 31 68
15 19 32 89 111 95 170 57 43 24 45 31 41
16 34 35 75 120 98 176 52 36 34 34 29 32
17 34 47 77 107 128 143 66 29 38 32 31 28
18 26 71 87 140 113 146 91 47 38 31 31 25
19 22 70 88 101 121 125 73 42 48 28 36 25
20 25 60 83 108 106 125 69 61 41 24 35 26
21 27 55 70 105 141 104 60 52 38 45 31 27
22 25 52 69 108 117 103 55 34 44 53 27 27
23 25 59 71 94 123 118 41 57 37 52 30 32
24 23 52 85 102 210 119 73 32 34 61 32 31
25 25 45 68 120 186 177 51 35 62 48 28 33
26 26 44 68 117 152 153 62 51 50 41 31 31
27 25 56 63 129 148 161 50 87 31 39 35 40
28 23 55 63 104 140 127 59 70 27 43 38 38
29 23 70 62 101 147 131 70 138 45 44 37 33
30 25   77 160 129 164 49 64 36 44 36 37
31 26   79   112   68 51   43   31