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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 01572025 Swatara Creek near Pine Grove, PA


Schuylkill County, Pennsylvania
Hydrologic Unit Code 02050305
Latitude  40°31'57", Longitude  76°24'09" NAD27
Drainage area 116  square miles
Gage datum 480.66 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 1988-10-01 -> 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
1 253 240 279 402 320 215 163 102 170 184 267 339
2 256 244 333 414 272 207 153 146 192 126 187 339
3 245 247 291 475 260 201 134 117 115 111 203 278
4 236 304 302 419 237 198 134 160 89 124 154 287
5 232 282 407 335 268 220 160 144 105 134 154 291
6 238 232 339 337 314 209 133 120 125 101 167 256
7 218 231 338 361 326 189 151 130 241 97 145 247
8 259 212 305 325 321 169 151 110 515 117 157 231
9 267 192 328 296 294 171 121 123 173 115 193 207
10 317 185 416 309 285 168 120 114 146 115 177 226
11 252 191 471 331 286 241 103 116 121 130 164 327
12 247 202 403 333 298 254 158 151 99 130 204 341
13 273 197 367 428 271 292 167 305 92 111 203 290
14 279 191 358 360 267 224 189 194 80 122 170 299
15 241 200 349 429 299 174 184 135 77 130 181 269
16 248 240 314 463 359 158 156 104 101 138 206 277
17 229 228 306 448 345 156 155 94 105 122 240 331
18 260 246 304 336 286 166 131 99 307 121 188 362
19 315 229 295 314 282 159 105 97 159 231 175 259
20 337 207 334 300 286 187 95 84 111 208 195 230
21 253 243 405 288 234 290 88 119 86 184 189 314
22 217 252 480 294 208 204 118 132 89 145 212 276
23 268 255 418 285 204 171 237 109 174 137 284 311
24 350 322 420 251 208 168 279 87 137 150 223 373
25 343 372 380 250 191 169 239 79 126 147 232 433
26 304 316 359 263 184 234 183 71 130 140 215 302
27 322 283 417 251 183 290 127 69 145 180 233 260
28 304 292 418 258 173 502 109 127 212 234 382 262
29 272 380 437 238 198 216 103 93 182 274 276 259
30 264   394 275 215 167 96 78 234 274 260 247
31 264   382   210   93 85   231   232