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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 754.9 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 1919-10-01 -> 2024-09-30)

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
1 389 374 466 583 360 237 198 142 201 127 179 284
2 390 432 481 607 378 257 182 128 150 139 180 259
3 427 407 448 616 364 262 190 162 129 141 154 282
4 484 427 609 602 366 254 174 156 122 125 169 281
5 431 415 703 571 350 281 215 187 174 119 166 257
6 421 460 664 501 399 250 202 263 149 113 166 273
7 329 459 739 524 417 244 177 189 170 125 155 264
8 335 409 629 499 407 275 190 137 133 108 174 270
9 342 347 583 522 408 267 234 129 203 113 160 301
10 302 373 640 536 423 242 241 134 208 104 163 279
11 321 430 594 485 400 249 223 172 125 97 167 291
12 407 428 595 596 429 229 224 168 114 103 187 296
13 342 492 592 576 452 244 222 156 114 105 175 319
14 338 516 627 534 384 262 211 151 118 112 168 357
15 359 486 664 536 364 250 171 144 110 134 182 299
16 336 542 547 503 355 251 155 136 101 168 312 340
17 305 450 559 466 363 320 152 122 193 146 283 315
18 322 512 515 414 426 232 137 198 286 141 237 356
19 427 508 600 403 381 288 152 157 124 136 233 287
20 391 462 672 410 344 252 174 185 105 136 229 244
21 383 486 659 404 363 266 188 176 146 140 186 285
22 389 527 621 385 328 284 188 142 177 126 176 316
23 386 587 594 396 308 278 195 132 134 116 184 287
24 460 646 606 407 320 240 164 113 161 121 183 305
25 459 646 500 398 359 241 135 125 145 136 188 316
26 446 674 512 458 345 210 132 108 146 124 257 317
27 425 504 490 398 304 226 181 112 138 133 301 316
28 464 483 498 391 320 240 235 123 147 141 297 343
29 417 406 586 410 317 240 283 131 165 151 252 323
30 423   557 385 256 203 174 109 173 158 232 380
31 416   543   264   176 142   171   352