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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
1 392 373 468 574 361 238 199 143 201 127 179 286
2 392 432 481 568 380 258 183 128 150 139 180 260
3 430 408 449 544 365 263 191 162 129 141 154 282
4 487 429 612 580 367 255 175 155 122 125 169 281
5 434 417 708 560 349 282 216 187 174 119 166 257
6 425 462 665 496 398 251 203 263 149 113 166 275
7 330 462 739 521 419 245 178 189 170 125 156 265
8 337 411 631 497 403 277 191 137 133 108 175 272
9 326 349 581 522 409 268 236 129 203 113 161 303
10 287 375 629 536 423 243 242 134 208 104 164 281
11 319 432 592 461 399 250 224 172 125 97 168 293
12 407 431 595 521 428 230 225 168 114 103 188 298
13 338 496 593 556 453 245 223 156 114 105 176 321
14 337 520 630 526 385 263 212 151 118 112 169 360
15 359 490 665 530 364 250 172 144 110 134 183 302
16 337 546 549 499 355 252 155 136 101 168 315 342
17 307 454 562 463 362 322 153 122 193 146 284 317
18 324 516 517 410 417 232 137 198 286 141 237 358
19 430 512 603 401 380 289 153 157 124 136 234 289
20 393 466 676 409 345 253 175 185 105 136 230 245
21 386 490 664 404 364 268 189 176 146 140 185 287
22 392 531 626 385 329 286 188 142 177 126 173 319
23 389 589 597 396 309 279 196 132 134 116 184 289
24 462 650 610 407 320 241 165 113 161 121 184 307
25 450 651 502 399 360 242 135 125 145 136 188 318
26 439 679 513 460 344 210 133 108 146 124 259 319
27 424 507 486 400 302 227 183 112 138 133 303 313
28 439 482 499 392 320 241 236 123 147 141 299 340
29 401 396 588 412 318 241 285 131 165 151 254 324
30 419   560 386 257 204 174 109 173 158 233 382
31 414   546   264   175 142   171   354