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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 05459500 Winnebago River at Mason City, IA


Cerro Gordo County, Iowa
Hydrologic Unit Code 07080203
Latitude  43°09'54", Longitude  93°11'33" NAD83
Drainage area 526  square miles
Gage datum 1,069.51 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 1932-10-01 -> 2024-09-30)

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
1 125 76 305 921 542 559 544 224 242 234 218 154
2 118 72 287 829 552 544 494 220 215 240 223 153
3 109 73 303 772 549 509 451 225 197 244 214 148
4 100 76 330 763 541 487 417 218 187 250 204 146
5 100 80 378 781 541 476 405 221 197 255 199 142
6 107 82 422 794 529 447 431 215 194 250 199 140
7 98 77 410 771 498 479 391 210 215 249 198 138
8 92 80 366 728 486 641 401 220 229 248 189 138
9 86 94 360 681 497 608 404 217 231 257 184 130
10 85 93 388 664 511 595 394 243 219 256 192 121
11 83 108 472 676 504 544 395 219 203 245 193 119
12 79 99 519 699 515 613 362 199 188 252 193 127
13 78 107 534 705 526 644 371 212 199 244 193 132
14 78 116 575 709 522 572 398 222 210 224 191 137
15 73 125 597 667 493 575 362 204 250 212 187 142
16 75 124 643 636 479 560 334 196 265 204 187 137
17 78 143 616 597 494 594 352 198 244 200 190 130
18 83 164 622 567 512 598 362 194 230 199 191 125
19 80 165 609 580 500 638 402 198 263 199 190 119
20 80 192 671 619 496 621 390 207 315 204 189 118
21 81 209 652 613 531 642 382 216 305 202 198 115
22 91 214 628 598 611 636 339 247 327 210 196 115
23 92 219 632 601 566 647 320 277 299 221 188 112
24 91 204 632 576 580 679 294 277 271 223 181 110
25 89 194 653 562 549 698 281 275 263 216 175 115
26 84 213 713 542 538 700 276 253 264 213 168 117
27 80 241 736 526 551 673 269 244 250 218 168 125
28 79 296 734 562 567 617 257 252 255 211 161 140
29 77 366 766 556 593 614 249 292 262 208 159 137
30 76   886 545 639 592 235 265 244 217 155 136
31 76   930   581   231 308   210   131