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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


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
1 607 425 611 1,180 656 302 250 229 112 274 473 807
2 602 411 601 1,190 634 289 243 210 145 227 428 747
3 559 411 654 1,140 574 286 218 202 177 211 380 658
4 554 393 719 1,180 546 343 197 196 159 213 339 604
5 547 399 764 1,220 520 327 213 168 137 203 323 553
6 523 428 806 1,130 502 453 196 161 134 219 350 520
7 476 453 767 1,050 489 403 206 165 116 212 341 502
8 516 480 733 1,010 483 371 241 178 113 211 369 473
9 569 424 730 979 520 327 210 160 165 217 415 473
10 511 385 709 1,010 540 264 179 212 196 219 430 483
11 468 374 732 996 575 242 158 193 190 219 434 507
12 580 416 787 964 707 265 200 196 209 231 486 514
13 680 396 838 910 693 277 211 184 224 214 454 517
14 705 475 864 876 659 378 175 236 208 205 407 558
15 630 461 973 856 656 368 166 243 178 206 387 602
16 539 458 870 848 622 367 158 185 157 195 421 563
17 466 533 764 881 577 339 162 158 182 194 523 531
18 438 626 754 779 513 318 229 250 331 228 504 557
19 481 604 787 685 551 303 190 308 336 273 484 532
20 632 598 856 641 513 330 179 211 269 359 522 498
21 528 627 892 637 472 433 185 199 212 457 466 518
22 414 642 959 615 461 355 211 209 244 379 436 584
23 400 641 896 582 442 286 188 182 269 317 435 591
24 500 726 867 580 424 266 194 153 230 301 411 606
25 655 799 888 563 380 280 200 134 265 299 405 672
26 675 683 925 583 357 319 206 114 313 300 497 601
27 590 653 888 574 313 268 223 116 306 373 632 559
28 496 676 845 570 325 267 229 114 281 493 677 568
29 470 765 864 592 366 290 208 139 270 481 671 559
30 446   934 625 324 285 188 136 309 481 694 559
31 451   1,060   291   204 130   431   595