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USGS Daily Statistics for the Nation

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 01470960 Tulpehocken Cr at Blue Marsh Damsite near Reading


Berks County, Pennsylvania
Hydrologic Unit Code 02040203
Latitude  40°22'14", Longitude  76°01'32" NAD27
Drainage area 175  square miles
Contributing drainage area 175  square miles
Gage datum 230.06 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 1978-10-01 -> 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
1 304 346 423 378 291 296 268 158 213 226 279 380
2 319 299 412 332 330 290 272 191 164 222 258 341
3 356 331 412 286 329 301 261 241 194 249 242 385
4 345 401 416 325 352 252 251 181 231 255 249 357
5 338 422 387 342 330 254 233 228 237 252 225 316
6 309 377 408 339 271 252 220 221 221 243 222 342
7 285 336 442 341 290 274 214 190 190 228 217 374
8 290 328 428 297 345 252 243 162 215 222 181 362
9 298 333 428 258 368 227 220 144 315 214 185 331
10 318 297 423 257 366 222 206 155 306 211 221 317
11 323 267 418 267 319 249 184 169 294 220 220 304
12 304 289 444 302 290 282 210 197 280 244 203 315
13 301 313 457 327 294 253 220 185 255 223 216 316
14 298 314 469 363 298 244 273 225 237 232 229 359
15 285 304 484 364 283 237 277 248 239 244 225 476
16 266 314 498 345 306 227 230 197 209 257 242 468
17 284 345 466 429 324 217 210 148 198 253 264 428
18 296 355 411 494 331 216 239 151 184 241 300 378
19 315 357 396 464 313 224 222 194 220 263 294 345
20 354 358 411 419 343 266 197 167 277 284 264 330
21 396 366 424 339 338 276 185 168 275 314 257 318
22 420 377 479 310 332 233 164 219 249 296 255 306
23 395 388 482 293 306 244 205 243 193 276 262 298
24 384 415 453 261 265 286 254 197 167 268 273 318
25 388 426 428 278 246 292 241 168 166 245 271 342
26 425 405 412 305 225 299 226 157 177 234 271 397
27 423 407 412 313 223 283 217 143 165 235 269 390
28 388 423 422 302 223 314 199 146 175 260 275 377
29 407 574 420 308 226 308 175 160 181 280 338 355
30 388   434 309 304 267 159 194 203 284 407 337
31 384   416   306   158 215   275   315