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USGS Daily Statistics for New York

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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 041300020503
Latitude  42°07'20.2", Longitude  77°57'26.2" NAD83
Drainage area 288.0  square miles
Contributing drainage area 288.0  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 -> 2026-09-30)

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
1 532 363 529 1,050 522 252 229 190 86 193 357 618
2 534 395 505 1,040 525 245 210 147 133 174 325 524
3 446 397 581 1,000 496 256 192 138 140 178 297 474
4 501 339 667 1,100 486 268 179 140 115 180 259 448
5 463 384 723 1,150 465 331 173 138 95 185 266 420
6 419 425 796 934 520 447 157 157 102 224 279 497
7 368 373 669 929 452 321 192 152 85 212 253 445
8 442 392 696 927 412 244 247 142 83 177 309 401
9 455 335 659 837 441 274 182 172 187 188 329 397
10 411 353 636 857 478 232 150 197 165 169 323 454
11 419 349 733 826 576 196 127 149 117 181 321 489
12 547 413 735 824 652 226 148 182 148 172 329 470
13 606 358 748 854 546 253 143 157 206 146 305 463
14 606 408 843 802 567 347 141 234 216 157 280 496
15 461 412 982 766 550 294 139 165 133 160 289 516
16 396 436 742 776 591 313 142 126 129 170 350 449
17 355 490 766 791 486 304 226 111 159 164 397 443
18 385 595 773 626 431 257 218 199 282 224 350 486
19 599 516 734 592 467 248 143 266 190 247 352 419
20 588 549 779 606 413 322 135 148 174 303 392 392
21 427 563 843 575 451 423 168 197 139 389 331 474
22 353 570 844 537 386 269 245 175 199 271 316 507
23 384 590 773 536 377 219 221 134 218 238 356 542
24 463 695 759 549 364 202 250 107 158 239 315 576
25 599 704 770 552 307 200 210 98 265 257 324 591
26 540 536 811 574 295 243 158 90 287 251 438 502
27 494 588 757 529 258 225 172 90 206 363 492 543
28 409 608 777 499 291 243 156 95 229 412 530 517
29 388 592 851 528 326 282 141 116 201 320 511 474
30 393   901 553 292 260 128 122 272 419 502 549
31 406   967   239   152 107   325   531