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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 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 -> 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
1 323 298 265 241 208 178 157 152 165 169 177 255
2 318 300 264 240 205 176 158 157 166 171 178 261
3 317 295 260 228 199 178 151 158 166 174 180 277
4 321 299 265 236 194 184 149 163 171 179 180 281
5 317 296 262 244 187 172 152 164 160 176 183 284
6 317 299 253 242 182 173 150 163 160 179 180 287
7 322 302 250 246 179 177 151 164 161 183 182 295
8 329 311 258 248 173 167 150 166 162 182 185 300
9 337 321 261 249 162 165 148 170 171 180 191 309
10 345 325 255 245 172 173 146 170 167 177 202 311
11 346 323 267 234 168 178 145 170 167 173 204 313
12 334 321 271 228 168 172 148 164 166 173 207 307
13 333 316 283 214 161 167 152 168 170 173 209 306
14 319 315 277 213 169 165 159 167 180 176 209 313
15 308 299 262 215 177 160 168 165 175 178 207 306
16 304 299 271 218 177 163 162 168 175 176 205 304
17 308 307 275 210 172 167 159 164 170 173 206 305
18 310 301 276 201 169 169 151 165 177 168 206 308
19 312 304 274 193 173 179 148 157 185 166 210 293
20 316 304 278 192 177 183 152 150 182 164 218 296
21 325 302 273 193 180 180 158 151 181 163 216 305
22 309 303 261 195 188 184 161 153 182 162 222 311
23 308 303 260 198 182 185 164 153 181 166 223 317
24 306 295 263 206 174 190 164 151 180 169 225 308
25 293 292 263 210 178 191 161 150 180 173 225 306
26 293 280 257 209 179 184 155 153 182 174 226 306
27 293 275 258 201 182 167 152 155 184 174 229 314
28 299 272 254 206 183 163 154 158 182 169 241 323
29 305 281 260 203 173 156 152 160 170 172 250 314
30 307   255 211 169 155 152 163 167 168 254 320
31 302   253   175   153 166   168   318