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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 03042500 Two Lick Creek at Graceton, PA


Indiana County, Pennsylvania
Hydrologic Unit Code 05010007
Latitude  40°31'02", Longitude  79°10'19" NAD27
Drainage area 171  square miles
Gage datum 980.8 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 1968-10-01 -> 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
1 398 395 491 491 303 281 191 177 169 133 190 369
2 439 438 515 522 311 241 176 146 156 149 181 325
3 398 426 520 604 295 205 160 144 137 149 165 330
4 439 455 563 587 321 202 147 125 124 145 146 318
5 495 487 638 636 322 208 150 123 105 155 148 331
6 517 456 558 533 384 208 163 121 111 135 174 337
7 426 387 500 471 398 207 164 141 131 137 174 331
8 429 397 507 434 348 185 207 139 132 130 273 324
9 407 372 501 462 349 205 184 171 200 142 275 345
10 371 376 533 477 408 195 178 170 323 155 236 383
11 402 365 540 450 346 167 164 143 202 160 223 394
12 379 387 548 478 367 181 161 154 144 143 239 391
13 379 398 568 484 376 184 177 165 161 122 199 370
14 353 352 600 442 363 217 209 125 188 128 199 397
15 343 382 571 452 318 236 185 119 146 127 211 391
16 353 515 504 467 360 211 157 112 122 111 254 385
17 324 466 479 447 335 203 146 109 164 117 275 385
18 346 471 457 392 363 228 153 123 321 143 259 469
19 451 462 463 366 322 285 155 110 165 148 301 454
20 419 483 567 367 285 226 538 116 144 168 303 423
21 362 555 574 339 267 268 216 160 133 176 261 398
22 318 590 604 341 263 270 188 139 138 152 248 412
23 333 527 567 320 265 474 159 118 141 137 257 380
24 421 566 569 314 280 345 133 121 144 132 238 399
25 429 641 501 295 369 261 146 111 143 133 249 442
26 431 554 481 326 328 217 147 105 145 127 306 397
27 420 449 486 368 260 209 193 104 151 144 339 374
28 401 464 462 319 258 245 171 101 150 173 402 392
29 428 420 532 304 399 215 172 108 154 207 383 406
30 390   548 305 311 171 171 130 145 229 347 358
31 408   530   267   198 142   192   382