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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 03101500 Shenango River at Pymatuning Dam, PA


Crawford County, Pennsylvania
Hydrologic Unit Code 05030102
Latitude  41°29'53", Longitude  80°27'37" NAD27
Drainage area 167  square miles
Gage datum 969.3 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 1934-10-01 -> 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
1 321 299 264 241 208 179 157 153 166 170 179 257
2 316 301 263 240 205 176 159 157 167 172 179 263
3 314 295 259 228 199 179 152 159 167 175 181 279
4 318 299 265 236 194 185 149 164 172 180 181 283
5 314 297 261 244 186 173 153 165 161 178 184 285
6 314 299 253 242 182 174 151 163 161 181 182 288
7 319 303 250 246 178 178 151 164 162 184 183 295
8 326 312 258 248 172 168 150 167 163 183 187 300
9 334 322 261 249 162 166 149 171 172 181 192 309
10 342 326 255 245 171 174 147 171 168 178 203 311
11 346 324 267 234 167 179 146 171 169 174 205 313
12 335 322 271 228 167 173 148 165 167 174 209 307
13 334 317 283 214 160 167 153 168 170 174 211 306
14 320 317 277 213 169 165 160 168 180 178 211 314
15 309 300 262 215 177 160 169 166 175 180 208 306
16 305 300 271 210 177 163 163 169 176 178 206 304
17 309 310 275 203 173 168 160 165 171 174 208 305
18 311 301 276 194 169 169 151 166 178 169 208 308
19 313 303 274 185 173 180 148 157 186 167 212 293
20 317 303 278 184 178 184 153 150 183 165 220 296
21 326 301 273 185 181 181 159 152 182 164 218 305
22 310 302 261 192 189 185 162 153 183 163 224 311
23 309 302 260 198 183 186 165 153 182 167 224 316
24 307 294 263 206 174 191 164 150 181 170 227 306
25 294 290 263 210 179 192 162 151 182 175 227 305
26 294 278 257 209 180 185 156 154 183 175 226 305
27 294 273 258 201 183 168 153 156 185 176 228 313
28 300 271 254 205 183 164 155 159 182 170 240 322
29 306 281 260 202 174 157 153 161 170 173 250 312
30 308   255 211 169 156 153 164 168 169 255 318
31 303   253   176   153 167   169   316