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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 05471000 South Skunk River below Ioway Creek near Ames, IA


Story County, Iowa
Hydrologic Unit Code 07080105
Latitude  42°00'24", Longitude  93°35'43" NAD27
Drainage area 556  square miles
Gage datum 857.10 feet above NGVD29
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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 -> 2021-09-30)

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
1 173 142 367 775 632 762 860 279 263 263 256 173
2 164 146 329 639 597 625 760 274 255 307 237 170
3 159 132 340 564 585 608 619 261 217 273 226 160
4 141 128 327 564 568 584 732 248 184 221 208 153
5 134 115 350 562 567 574 682 209 194 194 205 148
6 126 122 361 563 548 637 551 208 240 196 217 142
7 120 118 334 520 660 632 467 210 228 187 238 133
8 115 114 349 477 733 765 511 228 197 208 218 129
9 108 139 438 523 647 872 848 386 182 321 193 125
10 102 185 489 480 625 807 754 484 164 338 182 120
11 105 165 555 460 556 878 718 708 190 369 175 121
12 103 136 689 496 652 1,040 604 514 205 341 171 135
13 96 136 797 492 762 962 496 306 214 263 182 189
14 100 142 960 475 708 1,020 509 216 233 263 187 271
15 94 130 807 508 572 1,020 464 260 200 268 175 309
16 95 150 662 517 522 891 407 416 170 242 183 241
17 119 157 597 535 546 1,080 481 568 191 210 227 194
18 150 218 618 587 573 1,060 541 323 187 222 216 168
19 152 367 767 529 546 1,070 437 294 168 214 193 157
20 137 435 831 525 526 864 394 330 262 187 187 145
21 133 394 679 568 549 840 353 340 267 178 206 145
22 121 309 594 566 578 912 324 315 239 205 196 147
23 104 333 609 542 592 934 348 289 253 245 189 145
24 100 316 628 516 674 838 340 278 222 256 181 144
25 96 277 605 618 755 877 291 213 265 214 176 148
26 94 244 578 729 808 829 245 246 298 193 173 155
27 90 246 554 700 892 988 276 271 292 182 187 171
28 86 260 535 632 882 885 286 325 231 174 178 185
29 86 298 549 576 847 723 238 424 255 180 170 174
30 87   707 554 1,020 771 288 470 290 233 170 186
31 101   730   936   245 281   264   167