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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
1 113 148 292 485 589 500 409 129 249 117 208 122
2 103 195 353 414 524 438 410 169 130 239 191 148
3 96 141 430 387 522 410 386 156 144 188 160 109
4 93 136 409 456 481 376 438 208 152 126 139 108
5 125 177 401 429 450 653 396 182 132 150 112 122
6 125 155 341 399 489 706 417 223 129 144 113 119
7 98 139 296 294 693 530 370 172 191 112 122 95
8 88 121 365 318 709 491 329 197 223 136 94 89
9 78 117 397 343 566 775 275 147 178 201 108 83
10 75 136 459 389 631 863 315 109 299 186 131 76
11 78 114 519 457 649 613 333 101 241 256 110 80
12 115 109 514 476 623 821 366 183 227 244 133 77
13 159 165 617 418 704 909 284 126 267 147 121 109
14 95 168 625 413 546 742 261 120 230 185 123 259
15 88 174 602 497 483 747 228 147 284 158 105 242
16 105 171 526 655 466 696 277 118 316 148 137 162
17 141 194 537 504 533 545 173 91 272 144 135 115
18 147 286 548 701 482 570 282 97 200 151 124 101
19 141 396 671 632 439 590 385 171 156 124 119 91
20 132 433 658 512 486 495 409 123 162 107 168 87
21 118 350 492 517 551 497 335 122 180 124 134 91
22 105 259 438 486 626 530 214 100 129 136 115 93
23 106 261 407 417 558 527 181 174 133 183 98 119
24 95 294 419 449 549 421 166 252 141 192 103 210
25 92 270 429 513 833 543 199 206 229 148 107 166
26 96 253 398 500 765 539 194 413 197 123 105 141
27 108 271 388 647 615 500 213 327 148 103 124 157
28 105 305 437 515 599 424 303 245 125 94 134 216
29 100 236 451 520 764 420 448 241 112 94 118 184
30 96   516 553 656 410 200 238 109 104 108 188
31 104   531   524   153 205   146   135