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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 03085500 Chartiers Creek at Carnegie, PA


Allegheny County, Pennsylvania
Hydrologic Unit Code 05030101
Latitude  40°24'02", Longitude  80°05'48" NAD27
Drainage area 257  square miles
Gage datum 755.45 feet above NGVD29
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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 1919-10-01 -> 2023-09-30)

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
1 392 373 467 573 362 239 200 143 202 128 180 286
2 392 434 482 569 380 259 183 129 151 139 181 260
3 430 409 449 546 365 265 188 163 130 142 155 282
4 487 431 605 583 367 256 174 156 122 126 170 281
5 434 418 709 563 350 284 217 188 175 119 167 257
6 425 464 668 498 400 253 204 265 150 114 167 275
7 330 464 742 523 421 246 178 190 171 125 156 265
8 337 412 634 500 404 279 192 138 133 109 175 272
9 326 350 583 525 411 270 235 129 204 113 161 303
10 287 376 632 539 425 245 241 133 209 104 164 281
11 319 434 595 464 401 252 225 173 126 98 168 293
12 407 433 599 524 431 231 226 168 115 103 188 298
13 338 499 597 560 455 247 224 154 115 106 176 321
14 337 523 634 529 387 261 212 151 119 111 169 360
15 359 493 670 533 367 251 173 140 111 133 183 302
16 337 550 552 502 357 250 156 136 101 169 315 342
17 307 456 565 465 364 323 153 122 194 146 284 317
18 324 520 520 412 420 233 138 198 289 142 237 358
19 430 515 607 403 382 291 153 158 125 137 234 289
20 393 469 681 411 345 255 176 186 105 136 230 245
21 386 492 669 406 365 269 188 177 146 140 185 287
22 392 532 630 387 331 288 189 143 178 126 173 319
23 389 590 592 398 311 280 197 132 135 116 184 289
24 462 654 587 410 322 242 166 112 162 122 184 307
25 450 655 494 402 362 244 136 117 146 137 188 318
26 436 683 510 463 346 210 133 107 147 125 259 319
27 423 509 486 402 304 224 184 111 138 134 303 313
28 439 478 499 393 323 241 238 123 148 141 299 340
29 401 396 591 413 320 242 287 131 165 151 254 324
30 419   562 388 258 205 174 109 174 157 233 382
31 414   547   266   176 142   171   354