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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 05470500 Ioway Creek at Ames, IA


Story County, Iowa
Hydrologic Unit Code 07080105
Latitude  42°01'21.2", Longitude  93°37'49.8" NAD83
Drainage area 204  square miles
Gage datum 880.48 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 1919-10-01 -> 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 62 62 128 217 247 240 350 70 83 129 94 74
2 60 67 132 190 223 219 243 80 88 116 90 71
3 61 55 143 186 230 228 229 76 70 98 80 68
4 56 57 163 188 223 244 246 73 61 118 75 65
5 54 60 144 177 213 234 257 69 71 99 72 66
6 51 51 143 180 200 238 209 72 75 82 75 71
7 49 47 157 168 232 228 184 75 63 76 83 64
8 47 57 159 169 225 271 205 86 89 86 75 61
9 45 69 178 205 245 286 375 150 98 118 72 58
10 42 79 196 192 232 255 258 204 81 108 95 55
11 42 59 219 193 216 269 275 321 85 121 92 54
12 38 52 267 226 247 370 218 201 77 137 90 59
13 35 54 299 233 298 370 199 116 79 103 83 70
14 36 72 338 235 269 433 176 84 85 90 79 107
15 34 98 252 245 227 501 124 97 74 95 76 110
16 37 90 243 252 235 396 136 161 78 86 77 72
17 60 102 236 237 245 535 239 105 89 75 91 64
18 70 127 273 240 255 430 220 81 85 85 87 59
19 59 194 321 227 297 414 163 88 116 86 88 55
20 52 176 286 229 262 327 131 106 128 75 89 54
21 46 165 228 236 261 317 123 98 120 74 90 55
22 41 144 201 241 256 328 112 89 93 86 83 56
23 38 135 220 236 256 334 108 97 92 96 82 56
24 37 125 229 209 303 329 103 76 84 92 78 57
25 35 109 216 247 351 329 104 65 104 80 75 71
26 34 95 205 278 343 315 87 86 104 75 71 67
27 33 144 184 261 360 413 88 80 120 70 72 69
28 33 126 177 231 336 337 87 79 102 67 78 88
29 44 120 178 204 310 303 80 133 104 73 78 81
30 50   203 234 427 368 111 125 104 88 75 83
31 46   208   311   84 91   94   67