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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 04185318 Tiffin River near Evansport OH


Defiance County, Ohio
Hydrologic Unit Code 04100006
Latitude  41°22'57", Longitude  84°24'58" NAD83
Drainage area 563  square miles
Gage datum 657.75 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 2013-10-01 -> 2023-09-30)

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
1 985 310 1,330 1,450 691 705 1,000 233 94 192 605 493
2 940 269 1,380 1,350 847 838 866 170 83 178 675 518
3 881 271 1,390 1,210 1,080 837 692 129 73 167 689 488
4 901 311 1,330 1,290 1,410 723 502 109 61 155 645 422
5 806 392 1,230 1,320 1,480 658 379 93 55 202 635 374
6 663 442 1,090 1,220 1,380 622 351 82 50 209 620 378
7 529 504 983 1,220 1,210 600 342 73 47 198 552 363
8 406 619 893 1,160 1,020 674 288 100 45 195 469 297
9 331 673 769 1,100 883 607 342 177 44 211 389 253
10 299 705 773 1,020 838 527 518 132 48 193 335 245
11 372 685 865 919 695 591 566 95 105 160 297 280
12 681 648 949 831 587 549 508 81 119 128 242 319
13 912 619 988 720 528 492 530 87 97 106 186 297
14 943 562 991 626 557 635 611 92 99 100 163 266
15 884 499 1,010 667 664 583 620 139 84 161 152 267
16 788 486 1,050 718 740 656 531 182 69 268 146 274
17 725 599 1,010 663 837 681 469 160 60 271 151 275
18 684 697 909 592 962 602 506 146 57 218 211 262
19 655 713 955 565 1,280 515 437 242 53 168 350 265
20 678 762 1,090 655 1,400 454 337 241 47 136 378 241
21 656 958 1,050 824 1,230 520 291 223 54 129 361 269
22 581 1,170 920 818 1,060 526 390 220 60 121 343 412
23 543 1,390 865 718 908 624 370 181 95 134 342 494
24 584 1,500 875 604 789 627 355 126 145 126 390 472
25 633 1,470 889 519 700 507 406 100 145 253 406 434
26 603 1,360 852 529 653 415 430 100 127 417 397 431
27 545 1,250 877 532 626 501 418 91 115 479 462 553
28 478 1,330 978 535 598 1,010 392 97 128 485 498 617
29 422 512 1,080 533 565 1,200 359 88 154 515 533 678
30 395   1,130 560 517 1,060 324 95 197 541 521 821
31 357   1,330   607   274 109   563   921