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USGS Daily Statistics for Ohio

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Ohio

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 04180988 St. Marys River at Rockford OH


Mercer County, Ohio
Hydrologic Unit Code 04100004
Latitude  40°41'41", Longitude  84°38'48" NAD27
Drainage area 340  square miles
Gage datum 787.39 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 2005-10-01 -> 2019-09-30)

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
1 616 246 987 566 408 313 468 69 65 148 190 603
2 502 250 1,200 464 411 307 378 70 47 121 218 736
3 451 219 1,220 453 480 323 326 60 31 95 314 850
4 409 204 1,130 582 568 320 298 50 25 74 342 699
5 361 271 926 784 564 343 238 66 23 66 292 484
6 405 556 755 845 601 345 172 77 23 95 237 416
7 471 845 699 719 594 302 119 69 31 171 194 449
8 458 839 626 635 497 249 115 50 43 230 175 421
9 396 654 602 566 376 232 192 37 98 193 169 329
10 448 406 638 547 370 259 304 46 144 129 149 269
11 537 380 714 562 391 303 350 62 176 86 125 236
12 529 476 788 639 394 330 314 68 175 58 108 279
13 728 504 866 747 376 339 298 54 141 42 108 318
14 905 451 908 702 387 354 315 43 88 34 122 359
15 1,070 374 945 563 459 401 361 38 51 30 146 364
16 1,050 325 1,100 482 441 612 386 36 31 30 192 329
17 846 322 1,070 483 396 821 329 38 28 44 246 309
18 599 407 775 474 361 802 249 49 33 59 367 276
19 465 547 555 417 317 665 221 55 28 105 489 223
20 436 538 497 395 317 565 204 46 25 205 537 189
21 416 473 514 407 320 469 178 62 29 254 457 219
22 407 486 414 410 330 416 191 92 34 288 360 374
23 387 715 343 341 284 419 272 103 40 294 315 611
24 372 660 368 262 269 466 281 114 35 245 330 758
25 373 530 443 229 333 464 243 107 31 202 379 694
26 359 450 472 303 346 415 163 81 36 168 386 584
27 326 435 406 464 392 460 115 63 56 139 370 542
28 300 556 440 588 484 583 75 46 78 140 367 608
29 278 290 493 513 502 626 60 37 80 147 402 802
30 249   559 431 411 544 70 49 70 168 461 864
31 233   614   349   68 62   186   764