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USGS Surface-Water 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 05470000 South Skunk River near Ames, IA


Story County, Iowa
Hydrologic Unit Code 07080105
Latitude  42°03'59.7", Longitude  93°37'12.9" NAD83
Drainage area 315  square miles
Gage datum 888.73 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 1920-10-01 -> 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 79 68 198 392 312 393 394 137 102 126 140 95
2 75 69 183 336 311 391 343 127 93 139 131 91
3 71 67 208 311 312 350 316 108 99 134 116 88
4 66 72 236 314 319 344 325 100 83 129 111 83
5 66 101 250 306 316 321 286 91 80 117 112 85
6 73 98 260 314 300 339 249 92 101 111 118 93
7 68 72 263 288 316 315 230 97 101 107 124 86
8 59 72 240 261 324 323 228 99 108 113 115 81
9 52 83 260 271 326 402 322 148 90 143 103 76
10 49 89 278 260 309 357 224 173 74 150 102 72
11 50 84 308 263 279 392 232 213 83 160 101 71
12 47 68 340 307 296 446 233 173 88 167 114 76
13 45 75 410 319 323 525 204 118 93 146 107 92
14 50 98 464 305 333 494 195 100 115 131 105 117
15 48 136 424 312 284 491 193 78 101 134 100 132
16 55 142 398 312 297 466 178 110 102 123 100 106
17 59 128 365 304 291 463 217 100 116 111 110 89
18 72 133 372 300 297 461 183 109 107 113 105 80
19 75 169 417 280 368 489 185 104 120 115 103 77
20 67 195 418 274 372 429 178 117 158 103 102 70
21 65 190 347 283 334 383 150 137 158 99 100 68
22 60 181 311 276 337 422 136 124 131 112 97 67
23 55 201 329 273 323 460 152 123 115 123 98 68
24 51 188 342 265 336 392 149 119 117 125 93 71
25 51 163 342 296 363 448 131 93 122 111 89 81
26 52 156 319 335 390 381 124 108 135 99 87 81
27 54 169 337 321 432 397 141 116 135 92 94 86
28 53 177 341 299 425 404 141 129 120 90 98 101
29 58 170 347 282 402 353 144 190 125 97 98 94
30 59   368 284 461 387 149 177 134 119 96 100
31 57   369   395   142 115   134   90