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USGS Surface-Water 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 -> 2022-09-30)

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
1 304 345 425 381 293 297 272 159 216 230 278 383
2 320 299 415 334 331 291 276 192 166 225 258 343
3 356 331 415 287 331 301 264 244 197 252 245 389
4 340 401 420 326 356 252 254 183 235 256 253 360
5 332 422 391 345 333 256 236 232 242 248 229 317
6 306 377 413 342 272 254 222 225 225 240 226 344
7 283 336 447 344 285 276 216 193 194 229 221 377
8 289 328 431 287 332 253 246 164 219 223 184 363
9 298 333 433 241 355 225 222 145 321 215 188 333
10 319 297 428 249 354 223 207 157 312 212 224 319
11 324 267 423 258 313 252 185 171 300 223 223 307
12 305 289 449 297 288 285 213 200 284 247 206 318
13 300 313 463 325 293 253 224 188 256 225 219 318
14 298 316 474 362 296 244 278 229 239 233 228 363
15 284 306 489 365 282 238 282 249 243 244 222 484
16 264 316 503 346 307 229 234 195 211 258 237 471
17 282 349 471 432 320 219 212 146 200 254 263 427
18 295 357 416 499 330 217 241 152 186 242 303 376
19 316 357 400 457 309 226 223 197 223 264 299 340
20 352 361 416 414 342 269 198 169 281 285 268 324
21 395 370 428 337 337 279 186 170 280 316 260 317
22 423 379 485 308 329 235 165 223 254 296 256 308
23 396 390 488 291 303 244 208 247 196 276 263 292
24 383 419 458 259 263 288 258 200 170 268 275 302
25 386 431 433 277 245 295 245 171 169 245 274 326
26 421 408 416 305 224 302 230 160 179 233 275 383
27 417 411 415 314 223 286 220 145 167 235 273 382
28 383 425 427 304 222 318 202 148 177 261 277 377
29 404 574 425 310 225 312 176 163 184 281 341 356
30 387   438 311 306 270 160 197 207 284 414 337
31 384   420   306   160 218   276   315