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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 -> 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
1 306 351 418 372 289 291 266 157 210 225 275 375
2 322 302 407 327 329 285 269 189 162 220 254 337
3 359 334 406 282 329 296 258 238 191 246 239 380
4 347 400 418 319 349 248 248 179 227 252 246 355
5 337 418 394 336 327 250 231 225 234 249 222 315
6 308 374 415 333 270 247 218 218 218 240 219 341
7 284 335 444 335 288 269 212 189 187 225 214 371
8 294 327 426 292 341 248 241 161 212 219 180 357
9 301 331 424 254 362 223 221 143 309 212 183 327
10 315 296 419 252 360 218 231 154 308 210 218 313
11 366 266 414 262 314 245 195 167 303 220 217 309
12 352 287 439 297 286 277 212 195 287 244 201 326
13 348 311 453 321 290 253 220 183 259 222 213 326
14 337 312 465 356 294 245 271 223 239 230 226 364
15 299 301 480 357 280 238 274 249 239 242 222 474
16 280 310 493 339 302 227 228 199 208 258 238 464
17 295 342 462 421 320 216 209 150 197 255 259 425
18 302 352 409 484 326 214 237 151 183 244 295 380
19 318 353 393 455 308 222 220 193 219 265 289 372
20 357 354 406 410 337 263 196 166 274 286 260 376
21 398 362 418 333 332 272 185 167 273 316 253 360
22 419 373 472 305 327 230 165 217 262 297 257 332
23 394 384 475 288 302 241 205 240 207 278 266 306
24 384 410 448 256 261 282 252 194 167 270 273 320
25 389 421 424 273 243 290 239 166 166 246 268 344
26 426 400 408 299 221 302 225 155 177 234 268 397
27 423 402 406 308 220 286 215 141 165 235 269 389
28 389 418 417 296 219 313 197 145 174 260 276 378
29 421 574 414 302 222 306 173 158 181 279 336 357
30 410   428 303 300 265 158 192 203 281 402 339
31 402   411   301   157 212   272   318