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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 01518000 Tioga River at Tioga, PA


Tioga County, Pennsylvania
Hydrologic Unit Code 02050104
Latitude  41°54'30", Longitude  77°07'47" NAD27
Drainage area 282  square miles
Gage datum 1,020.59 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 1977-10-01 -> 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
1 562 408 614 1,110 753 411 312 209 126 239 410 633
2 599 482 665 1,050 753 357 227 150 161 243 374 705
3 551 483 675 1,080 674 354 188 136 192 243 350 679
4 553 451 779 1,230 607 360 202 147 150 188 324 630
5 597 475 832 1,300 569 361 191 133 119 186 387 458
6 510 475 712 1,240 557 482 156 131 121 291 279 398
7 444 470 738 1,310 571 527 200 122 117 237 325 387
8 408 506 893 1,320 507 480 192 117 96 191 357 360
9 561 455 876 1,280 535 378 174 209 122 146 327 348
10 552 452 854 1,220 636 263 171 248 221 133 416 390
11 552 470 789 1,130 668 197 137 206 344 170 499 482
12 561 497 936 1,040 728 213 195 194 355 208 547 469
13 662 463 984 953 731 228 249 211 294 211 485 489
14 573 377 1,060 904 761 286 208 235 245 199 374 545
15 556 336 1,030 953 585 420 181 226 201 221 354 647
16 530 475 977 918 626 319 176 161 142 214 364 528
17 471 545 994 983 634 324 156 133 181 240 420 500
18 448 635 1,010 925 568 308 180 182 172 213 383 600
19 487 707 990 833 561 285 166 241 240 299 350 504
20 510 744 958 885 575 287 130 250 271 426 365 446
21 535 774 901 847 538 371 124 316 279 513 347 482
22 529 716 1,100 818 503 352 178 254 269 452 327 484
23 578 626 1,060 773 458 306 188 217 334 307 366 616
24 650 682 1,010 748 435 257 258 193 318 268 316 701
25 813 743 1,010 752 362 224 187 113 321 345 323 665
26 844 677 1,130 760 337 261 190 111 226 380 426 650
27 774 598 1,180 758 327 284 279 87 200 452 620 599
28 659 629 1,110 708 362 342 303 107 249 442 618 557
29 532 794 1,010 748 440 257 257 171 259 393 586 536
30 423   1,030 781 434 298 189 151 240 401 556 591
31 394   1,030   334   223 134   401   614