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USGS Daily Statistics for the Nation

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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 -> 2026-09-30)

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
1 164 138 385 746 634 745 834 297 247 246 247 163
2 155 143 331 620 604 613 739 282 239 286 228 160
3 153 129 336 550 609 596 612 264 204 253 219 151
4 137 125 322 550 597 573 716 248 173 205 202 144
5 129 112 348 547 595 566 665 208 182 180 199 139
6 121 119 358 547 564 648 550 209 223 184 208 134
7 115 116 332 506 691 636 471 212 212 177 227 125
8 110 113 346 464 766 751 516 225 183 196 208 122
9 104 137 434 505 706 847 824 368 170 299 185 119
10 98 179 484 465 675 781 731 497 154 314 174 114
11 100 160 543 446 584 846 717 711 178 342 170 115
12 99 133 664 478 662 995 629 507 191 317 168 128
13 92 132 762 476 765 921 506 305 199 247 177 179
14 95 141 913 459 715 978 506 217 216 246 181 253
15 90 153 770 489 578 1,070 458 254 186 249 170 289
16 91 161 637 499 527 920 403 396 159 226 177 228
17 114 155 580 518 545 1,060 475 535 178 196 216 184
18 144 211 597 568 568 1,050 526 309 175 208 205 160
19 144 349 743 513 541 1,060 432 282 158 200 185 148
20 131 413 802 514 548 858 426 314 243 175 180 137
21 127 374 658 558 612 830 391 321 247 166 197 137
22 115 293 579 569 659 889 340 297 222 191 187 138
23 99 316 598 574 636 904 353 273 235 228 180 136
24 95 300 616 561 695 815 376 263 206 241 173 136
25 91 263 597 661 762 866 338 202 246 206 168 141
26 89 234 578 765 815 824 270 232 276 187 164 147
27 86 318 551 720 891 995 287 254 270 175 177 161
28 83 338 528 644 872 896 292 310 214 171 168 174
29 83 280 538 587 833 724 264 396 236 188 160 165
30 85   684 565 986 757 358 438 269 233 159 176
31 98   705   908   293 265   258   158