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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 06809500 East Nishnabotna River at Red Oak, IA


Montgomery County, Iowa
Hydrologic Unit Code 10240003
Latitude  41°00'32.5", Longitude  95°14'28.9" NAD83
Drainage area 894  square miles
Gage datum 1,005.40 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 1918-10-01 -> 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
1 206 235 633 667 873 895 873 395 365 373 295 227
2 213 259 639 563 794 1,050 751 422 369 404 306 230
3 205 234 669 496 757 866 939 434 290 333 275 222
4 193 283 665 510 719 857 850 408 320 298 257 214
5 200 301 691 541 732 1,050 783 360 392 337 252 212
6 225 321 625 519 859 900 747 385 472 325 247 212
7 198 235 508 489 1,030 886 645 426 490 322 238 204
8 186 259 493 481 851 1,020 653 406 438 332 234 197
9 179 270 533 533 822 1,080 819 362 474 361 254 191
10 179 279 599 552 968 977 758 309 453 338 248 187
11 182 275 691 585 877 1,060 719 346 407 408 251 186
12 177 251 777 580 882 1,400 695 468 474 365 256 182
13 174 268 985 589 857 1,320 664 363 647 315 240 220
14 173 293 1,010 562 831 1,450 581 362 544 317 233 315
15 174 322 802 643 751 1,850 519 316 390 517 232 310
16 205 325 622 614 734 1,550 484 308 467 412 241 260
17 225 359 785 549 876 1,090 507 329 377 301 264 239
18 242 450 833 575 761 955 524 303 331 324 262 218
19 204 688 913 602 713 914 505 306 327 294 251 209
20 201 623 814 563 729 914 607 330 334 260 251 201
21 207 519 645 610 865 976 525 338 347 254 254 200
22 212 454 578 607 933 1,010 624 409 339 253 236 199
23 199 454 598 607 929 1,080 562 429 340 276 228 209
24 201 433 588 638 907 963 472 409 322 290 224 223
25 189 406 561 689 1,000 902 591 386 374 268 220 208
26 183 434 562 676 994 823 459 412 368 249 216 208
27 180 522 616 759 969 1,010 426 321 327 242 219 252
28 181 611 638 747 994 943 408 344 323 236 219 295
29 176 520 707 645 1,050 814 400 499 316 243 214 262
30 203   639 815 972 765 442 551 342 275 219 284
31 197   649   852   424 470   285   224