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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
1 560 402 614 1,110 753 411 312 209 126 239 402 622
2 596 474 665 1,050 753 357 227 150 161 243 367 692
3 549 476 675 1,080 674 354 188 136 192 243 344 666
4 550 444 779 1,230 607 360 202 147 150 188 319 618
5 591 468 832 1,300 569 361 191 133 119 186 380 450
6 505 475 712 1,240 557 482 156 131 121 291 274 391
7 440 470 738 1,310 571 527 200 122 117 237 320 381
8 404 506 893 1,320 507 480 192 117 96 191 351 354
9 554 455 876 1,280 535 378 174 209 122 146 321 342
10 545 452 854 1,220 636 263 171 248 221 131 408 386
11 544 470 789 1,130 668 197 137 206 344 167 490 480
12 553 497 936 1,040 728 213 195 194 355 204 536 476
13 652 463 984 953 731 228 249 211 294 209 476 492
14 565 377 1,060 904 761 286 208 235 245 197 367 541
15 548 336 1,030 953 585 420 181 226 201 218 347 642
16 523 475 977 918 626 319 176 161 142 211 357 524
17 464 545 994 983 634 324 156 133 181 236 412 498
18 441 635 1,010 925 568 308 180 182 172 209 376 597
19 480 707 990 833 561 285 166 241 240 294 343 502
20 502 744 958 885 575 287 130 250 271 417 359 444
21 526 774 901 847 538 371 124 316 279 503 341 478
22 521 716 1,100 818 503 352 178 254 269 443 321 479
23 568 626 1,060 773 458 306 188 217 334 302 359 606
24 639 682 1,010 748 435 257 258 193 318 264 311 689
25 798 743 1,010 752 362 224 187 113 321 339 318 657
26 828 677 1,130 760 337 261 190 111 226 373 420 642
27 760 598 1,180 758 327 284 279 87 200 443 613 591
28 648 629 1,110 708 362 342 303 107 249 434 610 550
29 523 794 1,010 748 440 257 257 171 259 386 578 534
30 416   1,030 781 434 298 189 151 240 393 548 595
31 388   1,030   334   223 134   393   616