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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 04200500 Black River at Elyria OH


Lorain County, Ohio
Hydrologic Unit Code 04110001
Latitude  41°22'49", Longitude  82°06'17" NAD27
Drainage area 396  square miles
Contributing drainage area 396  square miles
Gage datum 620.09 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 1944-10-01 -> 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
1 706 458 734 655 461 322 207 124 77 114 225 422
2 584 448 770 639 450 398 233 94 87 94 255 416
3 455 466 750 838 539 321 253 65 63 70 309 375
4 630 414 855 1,060 459 273 216 54 60 68 199 370
5 704 482 1,020 1,100 398 194 245 47 44 67 155 369
6 617 465 897 766 347 203 347 79 57 70 158 368
7 509 448 857 620 382 203 161 123 96 90 129 427
8 398 439 896 684 394 191 117 133 133 89 139 354
9 480 425 849 631 352 257 198 110 96 59 137 300
10 446 582 792 630 382 226 233 71 109 56 145 374
11 418 665 932 693 399 151 250 64 76 48 207 433
12 508 547 916 703 525 158 251 87 54 40 267 518
13 580 514 888 629 592 169 211 84 71 54 236 519
14 488 539 992 631 423 362 167 80 92 61 203 422
15 427 603 1,070 692 452 375 157 68 99 79 269 425
16 499 597 965 587 435 234 147 57 72 104 324 490
17 508 632 773 568 385 303 200 75 67 91 365 450
18 557 737 660 474 483 298 271 65 123 95 280 382
19 614 775 729 453 551 273 143 70 90 115 247 313
20 508 731 848 594 427 249 63 94 86 161 239 306
21 450 707 953 684 387 234 66 146 65 167 215 390
22 617 720 1,040 591 452 207 75 160 79 114 213 496
23 507 950 745 560 361 284 120 90 96 89 310 516
24 663 1,020 656 636 278 233 99 130 65 97 235 514
25 682 878 585 578 234 231 94 178 56 103 234 488
26 553 749 588 623 480 222 58 153 94 109 308 488
27 675 780 604 515 582 229 69 106 140 122 370 444
28 561 849 695 490 408 279 86 67 167 146 341 487
29 556 540 857 461 415 289 114 59 125 208 377 446
30 586   851 492 245 205 70 59 101 279 344 531
31 640   788   220   113 91   267   779