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USGS Daily Statistics for Iowa

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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 06600100 Floyd River at Alton, IA


Sioux County, Iowa
Hydrologic Unit Code 10230002
Latitude  42°58'55", Longitude  96°00'03" NAD27
Drainage area 268  square miles
Gage datum 1,269.55 feet above NGVD29
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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 1955-10-01 -> 2021-09-30)

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 37 27 112 275 170 186 187 67 32 58 66 48
2 35 25 144 238 179 159 170 59 31 63 63 48
3 36 28 185 231 170 168 149 63 30 63 57 46
4 34 27 166 311 153 189 146 51 29 59 55 44
5 33 27 129 249 148 240 136 48 37 59 53 44
6 32 28 121 268 154 187 149 51 41 63 53 43
7 31 27 124 243 161 181 130 61 37 64 51 43
8 31 28 98 187 147 206 119 83 35 71 50 41
9 32 65 87 165 144 173 125 61 37 78 49 39
10 30 88 96 152 159 170 137 60 35 80 50 39
11 29 59 126 151 167 160 137 85 34 75 52 42
12 30 63 183 183 152 185 122 119 33 68 55 43
13 29 66 242 199 150 264 119 62 34 64 56 43
14 28 50 485 179 152 253 150 62 37 61 55 44
15 27 47 307 158 143 226 122 54 41 61 53 46
16 27 51 233 152 137 223 92 49 54 62 52 45
17 28 70 192 144 138 249 91 51 62 63 54 45
18 29 85 189 140 143 247 100 44 69 63 56 43
19 36 134 190 145 137 261 82 42 57 62 58 39
20 35 105 172 150 134 303 73 43 190 59 57 38
21 37 80 189 157 143 387 76 41 165 57 56 36
22 32 73 191 163 147 349 87 53 94 57 55 35
23 30 77 262 209 142 292 119 53 82 60 54 35
24 27 76 192 209 153 248 151 58 74 69 53 33
25 26 67 187 151 163 222 102 41 70 75 50 34
26 26 60 175 149 183 232 76 39 65 69 48 40
27 25 68 212 151 287 221 67 37 58 64 49 42
28 26 81 343 154 232 240 64 43 52 58 48 45
29 26 126 339 162 217 192 58 40 53 55 48 41
30 25   245 154 207 177 70 37 57 54 48 45
31 27   224   211   91 37   61   45