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USGS Daily Statistics for the Nation

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°20'14", Longitude  93°29'10" NAD27
Drainage area 460  square miles
Gage datum 769.97 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 1940-10-01 -> 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 80 186 240 446 482 365 247 89 111 88 237 143
2 88 190 302 331 441 313 178 110 67 127 171 168
3 74 107 385 347 434 305 273 76 96 150 137 93
4 67 142 394 443 410 279 421 227 98 75 106 114
5 68 177 352 388 385 729 570 115 75 91 89 160
6 150 142 297 321 490 478 524 158 77 106 99 132
7 76 155 247 294 801 249 338 140 103 107 89 82
8 65 145 365 367 640 382 448 263 106 147 59 88
9 58 139 389 373 578 722 289 118 128 334 77 77
10 57 122 581 388 525 751 310 80 397 207 132 65
11 60 123 549 491 514 524 329 101 128 264 88 73
12 98 140 494 539 575 799 417 194 146 256 121 64
13 196 184 657 424 641 818 212 74 344 105 117 95
14 90 171 518 443 473 629 174 83 263 280 101 285
15 117 170 524 535 475 637 198 121 243 141 87 138
16 122 171 499 691 405 643 372 70 289 70 178 88
17 134 191 538 505 591 617 274 54 146 57 194 79
18 103 321 484 914 437 481 371 76 149 105 122 72
19 108 381 708 644 346 535 383 202 126 71 97 65
20 125 406 561 478 289 443 411 186 179 68 130 70
21 105 284 339 523 486 535 271 122 205 91 99 66
22 81 219 374 494 559 559 162 90 126 153 83 67
23 91 240 396 413 425 366 119 311 243 245 82 117
24 79 275 492 421 408 316 141 411 191 219 93 205
25 78 257 478 669 820 740 165 255 305 113 110 134
26 99 215 456 439 671 515 148 444 213 90 106 105
27 133 235 430 670 527 538 221 316 119 71 150 196
28 103 294 491 453 547 287 423 153 72 56 162 231
29 99 172 527 398 802 280 532 131 83 60 108 154
30 106   687 442 513 278 154 73 107 87 114 232
31 98   614   393   141 67   170   123