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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 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 -> 2025-09-30)

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
1 165 139 390 754 628 750 833 272 248 249 251 166
2 156 144 335 624 599 616 739 265 239 294 232 163
3 155 130 339 552 606 598 612 251 204 260 220 154
4 138 126 323 552 595 574 719 238 172 211 204 147
5 130 114 345 550 594 567 666 200 182 184 200 142
6 122 120 356 550 563 651 540 201 224 186 211 137
7 115 117 328 508 692 640 460 202 213 178 230 127
8 110 114 341 467 769 756 511 217 184 198 211 124
9 104 139 425 509 709 854 827 364 170 305 187 121
10 98 182 472 468 678 788 733 455 154 322 177 116
11 101 162 534 449 587 855 700 668 178 351 172 116
12 99 134 662 482 666 1,010 607 484 192 325 170 130
13 92 134 764 480 771 932 495 289 200 253 179 182
14 96 143 919 463 720 990 500 205 218 251 183 259
15 90 156 773 494 582 1,080 454 245 187 255 172 296
16 92 163 639 504 530 919 398 391 160 231 179 231
17 115 158 582 523 548 1,070 470 532 179 200 220 186
18 145 214 600 574 572 1,050 524 304 176 212 208 161
19 146 354 748 518 544 1,060 424 276 158 204 186 150
20 133 419 806 518 524 855 382 310 245 178 180 138
21 128 380 658 561 562 826 343 319 250 169 198 138
22 116 298 578 570 624 890 315 295 224 195 189 140
23 100 321 598 568 616 908 338 271 237 233 182 138
24 96 304 618 532 683 819 330 260 208 247 175 138
25 92 267 599 618 757 867 282 200 248 210 170 142
26 90 236 580 719 813 816 237 231 279 191 166 148
27 86 321 553 693 892 959 267 253 273 178 180 163
28 83 341 530 626 875 862 272 310 216 174 171 176
29 83 280 541 574 836 708 246 399 238 191 164 166
30 85   690 556 993 751 299 441 272 236 163 177
31 99   711   915   246 265   261   159