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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 -> 2022-09-30)

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
1 675 227 976 611 427 323 392 63 65 126 261 533
2 625 228 1,140 520 409 295 317 63 47 104 292 638
3 599 215 1,140 474 453 299 274 55 32 83 360 730
4 547 222 1,040 545 524 298 251 46 26 66 347 646
5 475 299 866 691 520 315 202 59 25 59 274 467
6 460 565 705 727 540 312 149 67 24 83 214 391
7 466 830 631 620 523 271 110 61 32 145 173 397
8 424 848 552 564 436 223 108 45 42 194 155 360
9 355 691 523 565 355 207 170 34 99 164 148 283
10 399 480 566 567 419 230 262 41 140 113 131 236
11 504 463 637 545 526 264 300 55 157 76 110 213
12 574 564 728 582 531 286 274 59 150 52 96 259
13 750 568 806 653 456 292 258 49 120 38 95 300
14 860 506 853 614 415 303 269 41 76 32 107 342
15 938 436 922 506 449 339 308 36 49 33 127 342
16 887 356 1,030 448 419 510 328 34 32 36 165 311
17 704 351 979 460 422 689 280 36 28 48 210 290
18 504 457 722 443 590 695 227 45 32 58 313 269
19 403 667 571 393 658 665 218 52 27 94 414 234
20 387 660 609 439 660 598 202 43 24 175 459 206
21 380 554 679 551 601 543 172 56 26 217 391 231
22 371 525 542 539 503 540 178 81 32 255 310 348
23 352 667 425 410 377 498 243 90 43 269 275 532
24 354 634 410 294 314 479 251 98 53 231 300 643
25 410 544 443 245 338 437 215 92 56 211 340 587
26 486 493 452 386 334 374 151 72 60 194 349 503
27 448 514 399 682 384 398 115 59 65 184 346 479
28 368 639 429 809 509 491 75 43 73 204 355 554
29 304 378 511 648 562 524 59 35 72 212 388 756
30 258   630 487 494 457 66 45 62 231 430 842
31 228   678   399   63 60   248   776