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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 04221000 GENESEE RIVER AT WELLSVILLE NY


Allegany County, New York
Hydrologic Unit Code 04130002
Latitude  42°07'20", Longitude  77°57'26" NAD83
Drainage area 288  square miles
Contributing drainage area 288  square miles
Gage datum 1,469.51 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 1972-10-01 -> 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
1 531 365 521 1,060 525 248 231 191 87 196 362 618
2 534 399 502 1,050 528 242 212 148 135 177 330 524
3 446 402 583 1,010 490 254 194 140 142 181 301 479
4 503 342 669 1,110 475 268 180 142 117 183 263 453
5 465 388 699 1,160 448 333 175 139 96 188 270 424
6 420 429 751 940 450 447 158 159 103 227 283 502
7 370 377 656 936 421 308 194 154 86 215 256 450
8 445 396 691 935 395 239 250 144 84 179 313 406
9 459 339 657 844 430 260 184 174 190 191 334 396
10 415 356 634 864 472 210 151 200 168 172 327 445
11 423 353 732 831 575 186 128 151 119 184 324 477
12 554 418 735 830 655 220 149 185 151 175 334 460
13 614 363 751 862 548 249 144 159 209 148 308 460
14 614 413 848 809 567 345 140 237 219 159 283 497
15 467 417 990 771 552 292 139 167 136 162 292 517
16 401 435 738 781 590 313 139 127 131 173 351 449
17 359 486 750 798 485 304 214 113 162 167 400 440
18 390 598 770 630 429 256 218 202 288 228 354 486
19 609 519 734 596 467 238 143 270 193 251 352 419
20 598 554 780 610 414 319 135 150 177 308 392 392
21 434 568 846 579 448 424 169 198 141 395 331 476
22 358 576 849 534 378 268 248 177 202 275 316 511
23 389 597 778 538 372 218 224 136 222 242 356 548
24 470 703 765 552 361 202 254 108 161 243 315 581
25 608 711 776 555 303 200 213 99 269 261 324 597
26 549 538 819 573 292 243 160 91 292 256 438 507
27 501 570 765 531 256 225 174 91 209 369 492 549
28 415 590 785 501 287 245 157 96 232 420 530 522
29 394 592 860 531 316 284 143 117 204 326 511 474
30 398   912 554 288 262 130 124 277 423 502 546
31 412   978   234   153 108   326   532