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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 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 -> 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
1 606 420 614 1,160 655 306 250 226 112 270 466 799
2 601 405 602 1,170 633 291 243 208 144 224 421 739
3 558 405 652 1,130 578 288 218 201 176 209 374 652
4 553 388 716 1,170 556 343 197 196 158 210 334 597
5 545 393 772 1,210 533 327 213 166 136 201 318 548
6 521 422 842 1,120 541 466 196 161 133 216 344 515
7 474 447 790 1,050 525 419 206 165 117 209 335 497
8 513 473 745 1,010 504 385 241 177 114 209 363 468
9 564 418 737 976 533 350 210 190 163 214 408 472
10 507 379 713 1,010 547 286 179 270 194 216 423 489
11 464 369 734 991 579 258 158 212 188 216 428 521
12 574 410 789 958 705 275 200 208 206 228 479 529
13 671 391 838 904 690 284 211 192 221 213 447 528
14 695 469 863 870 657 383 175 241 205 205 400 564
15 621 455 969 851 652 372 164 246 175 205 381 604
16 532 459 872 842 620 369 156 187 155 194 415 564
17 461 540 778 874 575 340 160 160 179 193 514 535
18 433 628 765 773 513 320 228 252 326 227 495 558
19 474 606 794 681 549 305 187 309 330 270 476 534
20 622 599 859 637 511 331 177 212 264 354 513 499
21 520 626 892 633 474 431 182 199 209 450 460 518
22 409 639 955 617 466 354 208 208 242 373 431 581
23 395 637 891 583 447 286 186 182 265 313 432 588
24 492 720 862 581 430 265 191 153 228 298 409 602
25 645 791 882 564 386 280 197 134 262 295 404 666
26 664 678 917 589 362 319 203 114 308 296 497 596
27 581 659 880 579 318 268 219 115 302 367 629 553
28 488 679 837 574 329 267 225 114 277 485 674 563
29 464 765 856 594 371 290 205 139 266 473 668 555
30 440   924 626 328 285 185 136 305 473 689 557
31 444   1,050   296   201 130   424   593