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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 -> 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
1 706 458 727 663 456 319 205 123 76 113 222 418
2 584 448 762 690 445 394 231 97 86 93 252 416
3 455 466 743 915 533 317 250 68 63 70 305 375
4 630 414 846 1,080 453 270 214 55 59 67 197 370
5 704 482 1,010 1,100 394 192 242 48 44 66 153 369
6 617 465 890 765 343 203 343 79 56 69 157 368
7 509 448 851 618 378 205 159 123 95 89 128 427
8 398 436 890 679 389 191 116 132 131 88 137 354
9 480 421 844 626 349 255 196 109 95 58 135 300
10 446 577 792 632 380 224 230 72 108 55 144 374
11 418 659 928 721 402 149 247 64 75 47 205 433
12 508 542 910 755 523 157 248 86 53 39 264 518
13 580 509 880 662 588 167 208 83 70 54 233 519
14 488 534 982 638 420 358 166 79 91 61 201 422
15 427 597 1,080 690 448 370 155 67 97 80 267 425
16 499 591 986 583 431 231 145 57 71 105 321 490
17 508 625 773 564 381 299 198 75 66 91 361 450
18 557 729 658 473 478 295 268 65 121 94 277 382
19 614 767 724 451 546 271 142 69 89 114 245 313
20 508 723 842 590 423 247 62 93 85 160 236 306
21 450 699 944 678 383 232 66 144 64 165 212 390
22 617 713 1,030 586 447 205 74 158 78 113 211 496
23 507 946 737 554 363 280 119 89 95 88 308 516
24 663 1,010 650 630 276 231 98 128 65 96 234 514
25 682 872 580 572 232 228 93 176 56 102 233 488
26 553 742 584 616 475 219 58 152 93 108 305 488
27 675 773 602 509 576 227 68 105 138 120 366 444
28 561 841 692 484 404 276 85 66 166 145 337 487
29 556 522 850 456 411 286 113 58 124 205 374 446
30 586   844 487 244 203 70 59 100 276 341 531
31 640   781   219   112 90   263   779