Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information please see www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

USGS Daily Statistics for Iowa

Click to hide state-specific text

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 05487470 South River near Ackworth, IA


Warren County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°20'16.4", Longitude  93°29'11.1" NAD83
Drainage area 460  square miles
Gage datum 769.84 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1940-10-01 -> 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 79 182 235 430 481 363 240 88 106 85 229 137
2 86 185 293 325 436 309 196 106 64 121 166 161
3 74 106 371 342 471 297 290 74 92 143 136 89
4 69 138 379 429 418 270 412 218 94 71 107 110
5 69 170 357 376 385 698 549 111 72 87 93 153
6 145 137 291 312 480 465 503 153 73 102 107 127
7 75 149 243 285 786 246 326 238 98 102 89 79
8 64 140 353 353 631 383 433 320 101 140 58 85
9 57 135 375 358 564 699 279 124 122 318 75 74
10 56 119 558 372 509 721 297 81 379 198 127 63
11 59 120 528 470 496 504 317 100 122 252 108 70
12 95 135 474 516 554 766 409 188 140 245 127 61
13 188 178 630 406 622 783 205 73 328 101 117 92
14 87 165 498 425 464 602 168 81 251 269 100 280
15 113 164 505 512 463 608 190 120 232 136 85 136
16 118 164 482 661 392 614 356 70 276 68 172 87
17 129 184 518 483 567 589 262 53 140 54 187 77
18 100 308 466 874 419 462 354 73 143 101 118 70
19 105 365 682 617 332 511 366 193 125 68 94 63
20 121 388 541 460 428 424 481 178 172 66 126 68
21 102 272 328 505 532 510 289 116 196 87 96 64
22 79 211 362 479 580 533 160 86 122 146 81 65
23 88 231 396 404 422 350 117 297 232 234 79 112
24 77 264 479 410 407 309 140 391 182 213 90 196
25 76 248 462 649 799 719 161 243 291 139 106 129
26 97 208 440 429 660 496 144 424 204 95 101 102
27 129 240 414 649 518 517 213 302 113 72 144 188
28 101 295 471 453 531 277 407 147 69 82 155 222
29 97 164 506 390 771 270 513 125 80 88 104 149
30 104   658 431 493 267 154 70 103 95 110 223
31 97   588   378   150 65   169   119