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USGS Daily Statistics for Michigan

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NOTE: During winter months, stage and discharge may be significantly affected by backwater from ice, resulting in incorrect discharge data. Consequently, discharge data may not be displayed during periods of ice effect. Click here for more information.

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 04174500 HURON RIVER AT ANN ARBOR, MI


Washtenaw County, Michigan
Hydrologic Unit Code 04090005
Latitude  42°17'13", Longitude  83°44'02" NAD27
Drainage area 729  square miles
Gage datum 744.40 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 1914-10-01 -> 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
1 502 493 728 949 732 550 377 207 222 261 326 466
2 501 483 725 953 738 556 351 209 225 257 338 463
3 497 482 738 943 724 529 341 216 217 255 354 462
4 515 472 762 970 714 505 332 221 215 267 358 461
5 522 478 795 985 697 493 324 218 209 271 361 464
6 513 490 798 973 671 481 305 220 208 277 375 463
7 498 472 787 948 659 485 289 215 214 269 386 466
8 500 473 793 927 646 471 282 206 211 261 386 464
9 501 478 803 914 640 456 272 220 212 262 386 452
10 491 490 812 885 620 428 275 224 209 272 390 449
11 498 484 849 873 645 416 274 221 213 278 402 440
12 495 484 887 850 669 406 263 212 213 277 413 440
13 498 501 903 830 666 404 258 213 212 272 418 440
14 502 524 949 805 653 407 252 218 223 272 423 441
15 500 563 942 806 669 403 251 211 235 295 426 439
16 485 556 972 824 684 406 255 212 234 303 426 442
17 487 568 953 817 689 400 246 210 232 292 421 441
18 488 579 935 815 700 398 241 212 239 300 414 431
19 492 610 937 803 701 399 242 206 239 297 419 423
20 484 641 932 810 681 399 245 205 236 286 430 421
21 492 658 922 826 657 418 227 204 233 294 428 427
22 487 669 903 802 654 408 235 201 248 300 436 427
23 484 703 903 799 637 412 240 199 250 306 443 435
24 486 716 902 794 617 390 229 205 245 301 438 436
25 480 726 894 809 610 401 228 193 248 310 425 442
26 488 738 901 791 609 417 226 190 250 316 431 446
27 481 736 905 761 599 414 217 196 256 318 443 452
28 484 733 918 763 591 409 226 206 253 314 446 464
29 480 574 932 758 570 395 233 211 254 318 459 483
30 490   929 739 561 384 219 217 246 325 462 502
31 503   936   564   217 221   327   503