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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 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 -> 2022-09-30)

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 63 62 122 220 249 242 354 71 86 133 97 76
2 61 68 130 192 225 221 245 81 91 119 93 74
3 60 55 143 189 232 231 231 77 72 101 83 70
4 56 57 165 190 226 247 249 74 63 121 76 67
5 54 60 145 179 215 236 260 70 73 102 73 68
6 52 51 144 183 201 240 211 71 77 84 77 73
7 50 47 160 171 234 230 186 74 65 78 86 66
8 48 57 162 172 226 274 207 87 92 88 77 62
9 46 68 181 209 245 290 380 153 101 122 74 59
10 43 79 201 196 232 258 262 209 83 111 98 56
11 43 58 224 197 217 272 279 328 88 125 95 56
12 38 52 273 231 249 375 214 205 80 141 93 61
13 36 54 307 238 297 375 197 118 82 105 85 71
14 37 71 346 240 264 439 175 86 88 93 81 110
15 34 85 258 251 225 508 124 99 76 97 78 113
16 37 88 247 257 235 401 136 165 80 88 79 74
17 60 103 239 240 246 542 241 108 91 78 94 65
18 71 129 279 243 256 428 222 83 87 88 90 60
19 60 198 328 230 299 414 164 90 119 88 91 57
20 53 180 292 230 264 329 132 109 132 77 91 56
21 47 169 233 238 263 320 124 101 123 76 92 56
22 42 147 205 244 259 331 113 91 96 89 85 58
23 39 139 225 239 259 337 109 100 94 99 84 57
24 37 128 233 212 306 331 104 78 87 94 80 59
25 36 112 217 252 355 326 105 66 107 82 78 72
26 34 98 202 282 347 315 88 89 107 77 73 69
27 34 111 184 264 364 416 89 83 124 72 75 71
28 34 107 178 234 340 339 87 78 105 69 81 90
29 45 126 180 206 314 306 81 136 107 75 81 83
30 51   205 236 432 372 112 129 107 91 77 85
31 46   211   314   85 93   96   69