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USGS Surface-Water 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 -> 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
1 256 244 279 404 325 219 166 103 174 188 274 347
2 260 248 333 403 277 210 156 146 197 129 192 347
3 249 252 291 419 264 204 136 117 117 113 208 285
4 239 311 302 369 241 201 137 162 91 126 158 294
5 236 288 407 311 272 224 161 146 107 136 158 299
6 242 237 339 324 319 210 135 121 128 103 171 262
7 222 236 338 354 332 191 154 129 247 99 149 253
8 264 216 305 320 327 172 154 110 529 119 160 237
9 272 196 328 292 300 174 123 105 177 117 197 212
10 324 189 416 307 283 170 122 102 150 117 181 231
11 258 191 471 331 285 246 104 113 123 133 168 321
12 252 202 403 319 298 259 161 151 101 133 209 337
13 279 197 367 422 271 299 171 311 94 113 208 292
14 286 191 358 356 268 228 193 197 81 125 174 304
15 247 200 349 426 295 176 188 136 78 133 185 274
16 253 240 314 464 360 160 159 105 103 141 211 281
17 234 228 306 450 347 158 159 94 107 124 246 336
18 266 246 304 336 287 169 134 99 315 123 193 369
19 322 229 295 314 283 162 107 97 163 237 179 263
20 345 207 334 300 289 191 97 84 113 213 200 233
21 258 243 405 289 236 297 89 120 88 189 193 320
22 221 252 480 295 209 208 120 134 90 148 217 282
23 274 255 418 287 202 174 242 111 178 140 291 317
24 358 322 420 252 208 171 286 88 139 153 229 381
25 351 372 379 252 192 173 244 80 129 151 237 443
26 310 316 359 266 185 239 187 72 132 143 220 309
27 329 283 420 254 183 296 129 70 148 185 239 266
28 311 292 422 261 174 515 111 129 217 240 390 267
29 278 380 443 240 199 221 105 95 186 281 281 263
30 270   398 279 218 169 98 79 239 281 266 249
31 269   386   213   90 87   237   235