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USGS Surface-Water 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 03007800 Allegheny River at Port Allegany, PA


Mckean County, Pennsylvania
Hydrologic Unit Code 05010001
Latitude  41°49'07", Longitude  78°17'35" NAD27
Drainage area 248  square miles
Gage datum 1,454.38 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 1974-10-01 -> 2024-09-30)

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
1 607 414 607 1,200 665 306 251 229 112 274 473 807
2 602 403 597 1,200 642 292 244 210 145 227 428 747
3 559 405 653 1,130 582 289 220 202 177 211 380 658
4 554 389 721 1,140 554 348 198 196 159 213 339 604
5 547 396 769 1,190 525 332 214 168 137 203 323 553
6 523 427 808 1,120 508 459 197 161 134 219 350 520
7 476 454 760 1,050 495 408 208 165 116 212 341 502
8 516 482 730 1,020 489 377 244 178 113 211 369 473
9 569 426 725 984 527 331 212 160 165 217 415 473
10 511 385 698 1,020 544 268 181 212 196 219 430 483
11 468 374 723 1,000 579 245 159 193 190 219 434 507
12 580 418 783 922 713 268 202 196 209 231 486 514
13 680 398 837 858 698 281 214 184 224 214 454 517
14 705 478 866 847 664 384 178 236 208 205 407 558
15 630 464 980 843 660 374 166 243 178 206 387 602
16 539 462 876 842 626 373 158 185 157 195 421 563
17 466 538 769 880 581 345 162 158 182 194 523 531
18 438 634 760 777 516 323 229 250 331 228 504 557
19 481 612 794 684 554 308 190 308 336 273 484 532
20 632 606 866 641 516 336 179 211 269 359 522 498
21 528 636 903 638 476 436 185 199 212 457 466 518
22 414 651 972 617 465 360 211 209 244 379 436 584
23 400 649 906 584 446 290 188 182 269 317 435 591
24 500 736 877 583 428 269 194 153 230 301 411 606
25 655 812 899 566 384 284 200 134 265 299 405 672
26 675 693 937 588 361 318 206 114 313 300 497 601
27 590 663 899 579 316 260 223 116 306 373 632 559
28 496 677 855 575 328 265 229 114 281 493 677 568
29 421 760 874 598 370 290 208 139 270 481 671 559
30 420   946 632 328 284 188 136 309 481 694 559
31 435   1,070   295   204 130   431   595