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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 05486490 Middle River near Indianola, IA


Warren County, Iowa
Hydrologic Unit Code 07100008
Latitude  41°25'27.7", Longitude  93°35'14.3" NAD83
Drainage area 489.4  square miles
Gage datum 775.94 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 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
1 113 149 294 489 592 504 409 129 249 117 210 123
2 103 196 356 415 527 442 410 169 130 239 192 149
3 96 142 434 385 526 414 386 156 144 188 160 110
4 93 137 412 457 484 379 438 208 152 126 137 108
5 125 179 396 431 453 659 396 182 132 150 111 123
6 126 157 338 401 493 713 417 223 129 144 112 120
7 99 140 294 295 699 535 370 172 191 112 122 95
8 88 122 364 320 715 495 329 197 223 136 94 90
9 79 118 397 345 571 783 275 147 178 201 108 84
10 76 137 460 392 637 872 315 109 299 186 132 76
11 78 115 521 461 655 620 333 101 241 256 111 80
12 116 110 515 481 629 830 366 183 227 244 134 78
13 160 167 620 422 711 918 284 126 267 147 121 110
14 96 169 629 416 551 750 261 120 230 185 123 261
15 89 175 606 502 488 756 228 147 284 158 106 244
16 106 172 529 662 470 704 277 118 316 148 137 163
17 143 196 541 509 538 551 173 91 272 144 135 116
18 148 290 553 709 487 576 282 97 200 151 124 102
19 143 401 677 638 443 596 385 171 156 124 119 92
20 134 437 664 516 457 500 409 123 162 107 168 88
21 119 354 496 521 546 502 335 122 180 124 134 92
22 106 262 442 490 627 536 214 100 129 136 115 94
23 107 264 411 421 561 532 181 174 133 183 99 119
24 96 298 423 453 552 422 166 252 141 192 103 212
25 93 273 433 517 840 546 199 206 229 148 107 168
26 97 255 401 500 771 526 194 413 197 123 106 142
27 109 273 392 647 620 491 213 327 148 103 124 158
28 105 307 441 516 604 420 303 245 125 94 135 217
29 101 236 455 522 771 418 448 241 112 95 119 186
30 97   521 556 662 403 200 238 109 104 109 189
31 105   535   528   153 205   147   135