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USGS Daily Statistics for Iowa

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


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 06903900 Chariton River near Rathbun, IA


Appanoose County, Iowa
Hydrologic Unit Code 10280201
Latitude  40°49'18.7", Longitude  92°53'27.5" NAD83
Drainage area 549  square miles
Gage datum 848.16 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 1969-10-01 -> 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
1 316 207 468 364 365 450 631 556 391 292 269 308
2 296 204 468 362 403 479 640 554 369 295 269 315
3 278 202 407 349 370 507 608 532 373 309 286 314
4 290 198 394 339 372 541 546 507 374 310 304 318
5 300 188 403 349 398 510 506 494 370 291 317 324
6 290 208 432 356 416 503 537 523 339 292 301 321
7 282 234 444 380 430 475 576 552 333 301 304 336
8 280 246 457 362 422 435 574 536 342 278 310 401
9 263 255 435 344 425 429 549 497 322 272 312 462
10 252 249 427 302 466 475 579 470 343 294 314 506
11 240 249 426 286 454 513 610 409 342 305 304 502
12 228 265 398 292 466 541 596 392 305 340 276 484
13 222 278 398 287 481 522 578 432 277 358 282 501
14 212 275 406 302 460 489 589 406 250 337 295 513
15 193 275 408 308 457 450 595 375 250 330 312 462
16 189 278 423 307 457 483 574 401 278 339 306 448
17 184 284 424 289 473 511 622 406 287 343 292 456
18 180 303 424 272 483 535 613 418 298 326 288 439
19 179 312 422 262 460 556 599 423 321 303 298 406
20 181 314 457 266 467 572 574 403 342 296 282 378
21 180 306 464 278 476 547 529 407 331 311 261 363
22 169 289 447 300 458 540 558 415 331 318 263 360
23 157 294 438 326 447 502 561 433 332 317 253 356
24 154 316 434 347 490 465 566 425 387 312 244 349
25 160 347 445 335 418 494 594 407 365 316 250 333
26 172 376 451 351 407 496 590 436 315 311 259 333
27 189 401 432 353 400 471 585 434 332 311 287 310
28 191 425 412 370 416 468 556 417 348 319 277 285
29 200 447 385 369 459 508 547 418 356 313 268 287
30 210   366 356 453 555 557 408 331 292 273 308
31 216   364   435   556 395   278   313