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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 04199500 Vermilion River near Vermilion OH


Lorain County, Ohio
Hydrologic Unit Code 04100012
Latitude  41°22'55", Longitude  82°19'01" NAD27
Drainage area 262  square miles
Gage datum 594.51 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 1949-10-01 -> 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
1 576 347 743 404 363 197 184 68 28 72 163 347
2 456 433 688 431 402 158 102 53 24 48 228 317
3 351 387 585 632 450 131 81 42 49 48 202 283
4 466 314 761 847 313 162 114 44 37 44 112 240
5 436 333 852 831 262 165 522 30 29 30 79 222
6 453 415 732 553 245 183 521 37 36 35 78 313
7 351 416 632 469 300 140 172 52 45 49 73 344
8 209 412 658 529 292 94 109 69 45 54 93 311
9 346 365 666 407 296 137 176 66 59 54 100 259
10 349 482 615 380 340 131 189 56 37 36 85 323
11 322 588 732 466 335 115 231 37 33 28 98 308
12 488 503 784 558 426 138 216 43 28 23 80 326
13 518 446 799 415 379 143 186 49 42 26 74 402
14 380 319 998 458 336 320 125 52 63 35 125 632
15 336 369 1,250 477 352 276 103 42 74 41 176 634
16 325 413 1,020 418 329 208 64 41 40 50 189 330
17 313 558 785 347 221 239 134 39 45 56 186 276
18 447 659 649 282 283 170 205 33 59 62 178 235
19 440 600 766 347 370 145 92 41 42 48 227 213
20 349 449 799 430 264 157 82 97 46 82 212 229
21 302 445 722 405 236 159 75 168 36 93 181 316
22 333 516 587 378 243 233 81 88 34 75 134 440
23 425 558 509 448 203 298 65 60 55 48 167 379
24 521 581 477 485 176 168 55 179 37 59 136 335
25 403 603 418 466 155 216 54 154 31 84 166 363
26 457 590 408 538 312 190 39 103 54 88 208 373
27 525 602 414 380 403 209 63 37 74 90 208 357
28 478 683 476 395 269 163 97 24 92 118 199 359
29 550 223 623 392 230 161 54 38 49 172 250 346
30 647   632 415 169 135 38 32 53 275 227 354
31 511   573   192   63 33   225   491