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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 01471000 Tulpehocken Creek near Reading, PA


Berks County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°22'08", Longitude  75°58'46" NAD27
Drainage area 211  square miles
Gage datum 216.60 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 1979-10-01 -> 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
1 368 380 455 455 360 364 304 196 264 278 332 434
2 366 341 470 411 391 353 318 240 215 254 310 399
3 397 389 447 386 394 354 299 279 220 276 297 447
4 400 468 469 421 407 306 288 264 258 284 293 415
5 380 481 461 447 386 310 267 284 267 282 268 389
6 353 440 464 439 357 304 263 305 263 269 269 404
7 336 395 497 423 360 325 263 266 234 253 262 429
8 328 376 484 379 410 301 280 205 278 261 234 415
9 339 379 499 343 432 274 277 180 366 248 233 380
10 360 342 515 340 439 278 265 186 369 252 267 359
11 406 321 520 346 394 312 227 205 356 267 264 375
12 398 343 532 377 360 334 257 226 337 285 251 397
13 405 369 538 405 367 312 264 246 305 258 259 409
14 394 371 554 425 374 292 303 264 280 266 264 446
15 346 362 566 441 360 281 308 287 281 282 269 542
16 327 374 573 438 383 275 262 227 254 303 298 533
17 340 401 542 495 400 273 240 181 233 301 324 498
18 366 418 480 546 402 264 262 186 234 290 345 463
19 374 423 459 516 403 278 245 227 249 325 340 433
20 419 421 475 471 414 348 219 198 297 336 313 435
21 437 431 506 399 401 345 218 204 296 365 305 420
22 429 439 574 363 388 287 205 267 281 345 313 391
23 422 450 564 348 361 288 255 279 235 323 332 372
24 438 451 541 314 320 325 296 228 194 316 325 386
25 462 445 512 327 291 333 277 198 187 292 326 407
26 476 454 490 360 275 349 265 186 196 278 330 456
27 437 455 488 363 268 340 260 172 205 286 331 455
28 397 448 499 355 274 367 239 187 214 316 347 450
29 425 649 492 356 287 355 214 191 220 333 396 423
30 420   510 372 338 310 196 220 241 340 456 399
31 423   492   383   195 250   324   378