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USGS Surface-Water Daily Statistics for New York

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 -> 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
1 521 358 519 1,070 530 255 236 196 87 201 372 637
2 531 394 497 1,060 534 249 215 152 137 181 339 540
3 437 399 583 984 494 261 192 142 145 186 310 479
4 491 340 673 1,080 477 276 180 144 119 188 270 441
5 458 388 705 1,150 449 344 177 143 98 193 277 422
6 416 431 757 928 453 461 161 163 105 234 291 506
7 365 378 649 939 425 316 198 156 85 222 264 452
8 446 398 695 943 397 245 257 147 83 184 322 406
9 458 336 657 852 436 266 189 134 192 196 344 397
10 370 351 625 875 479 214 153 169 167 177 337 450
11 410 350 735 839 585 191 128 145 117 190 334 482
12 551 420 742 792 670 225 152 183 152 180 344 467
13 598 363 760 844 559 255 145 159 212 150 318 468
14 610 417 863 803 580 356 142 241 224 159 292 508
15 465 422 1,010 771 566 300 142 166 137 162 301 529
16 399 440 749 787 606 322 140 125 133 174 362 458
17 356 494 747 805 497 312 219 111 165 169 414 448
18 388 612 765 631 438 263 223 198 296 233 364 488
19 601 531 737 599 478 245 146 272 199 257 363 421
20 588 567 788 616 423 330 138 149 181 317 405 396
21 427 581 859 586 458 437 173 200 139 407 340 485
22 351 589 862 540 387 275 256 180 196 282 320 522
23 385 589 784 544 382 224 226 137 225 248 361 548
24 467 702 769 559 370 206 261 108 161 250 317 591
25 585 720 777 564 310 205 219 96 273 268 328 609
26 466 541 822 585 299 250 164 89 298 263 445 516
27 453 576 771 541 261 229 178 91 213 381 502 553
28 377 588 792 510 294 251 161 97 238 434 542 508
29 366 576 874 541 324 288 146 119 209 336 521 464
30 381   929 565 295 266 131 121 284 435 513 537
31 401   998   240   156 108   334   520