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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 05471000 South Skunk River below Ioway Creek near Ames, IA


Story County, Iowa
Hydrologic Unit Code 07080105
Latitude  42°00'29.6", Longitude  93°35'45.5" NAD83
Drainage area 556  square miles
Gage datum 857.86 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 1952-10-01 -> 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
1 165 139 390 754 625 751 841 266 251 253 251 166
2 156 144 335 624 590 616 744 262 243 294 232 163
3 155 130 339 552 586 598 607 250 207 260 220 154
4 138 126 323 552 580 574 718 237 175 211 204 147
5 130 114 345 550 572 565 668 199 185 184 200 142
6 122 120 356 550 550 651 541 201 228 186 211 137
7 115 117 328 508 656 641 459 203 217 178 230 127
8 110 114 341 467 731 761 503 218 187 198 211 124
9 104 139 425 509 655 861 827 368 173 305 187 121
10 98 182 472 468 631 795 735 461 156 322 177 116
11 101 162 534 449 560 863 704 678 181 351 172 116
12 99 134 662 482 650 1,020 611 491 195 325 170 130
13 92 134 764 480 762 942 498 293 204 253 179 182
14 96 143 919 463 713 1,000 504 207 222 251 183 259
15 90 156 773 494 575 1,090 458 248 190 255 172 296
16 92 163 639 504 524 929 400 396 162 231 179 231
17 115 158 582 523 544 1,080 472 540 182 200 220 186
18 145 214 600 574 570 1,060 528 308 178 212 208 161
19 146 354 748 518 542 1,070 427 280 160 204 186 150
20 133 419 806 518 521 859 385 314 249 178 180 138
21 128 380 658 561 542 831 345 323 254 169 198 138
22 116 298 578 570 569 897 316 299 228 195 189 140
23 100 321 598 568 582 916 340 275 241 233 182 138
24 96 304 618 532 661 826 332 264 211 247 175 138
25 92 267 599 618 742 876 284 203 252 210 170 142
26 90 236 580 719 801 825 239 234 283 191 166 148
27 86 321 553 693 884 971 269 257 277 178 180 163
28 83 341 530 626 870 869 274 315 219 174 171 176
29 83 280 541 572 833 711 228 405 242 191 164 166
30 85   690 551 995 756 275 448 276 236 163 177
31 99   711   917   234 269   261   159