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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 01578475 Octoraro Creek near Richardsmere, MD


Cecil County, Maryland
Hydrologic Unit Code 02050306
Latitude  39°42'24", Longitude  76°06'56" NAD27
Drainage area 177  square miles
Contributing drainage area 177  square miles
Gage datum 120 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 2005-10-01 -> 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
1 285 235 341 324 693 155 224 151 303 465 254 263
2 308 303 498 342 275 210 283 254 520 186 154 237
3 265 330 314 385 248 278 199 163 136 194 279 261
4 245 411 302 300 248 219 172 350 127 171 142 194
5 234 366 412 273 257 212 155 179 123 166 139 200
6 243 324 288 257 241 243 155 130 203 132 153 181
7 247 278 323 271 291 198 187 146 284 123 155 198
8 248 294 277 277 270 210 166 211 473 119 159 296
9 277 261 311 263 233 190 166 142 263 120 161 299
10 485 234 487 243 219 215 174 149 197 121 159 221
11 252 268 640 246 214 247 171 147 302 285 147 217
12 281 278 363 258 220 242 213 159 191 165 149 309
13 290 342 398 321 257 300 239 477 155 133 187 224
14 253 287 483 264 267 214 199 213 138 152 164 222
15 235 261 313 339 245 180 199 160 150 163 149 218
16 233 304 310 389 300 164 156 119 148 171 205 268
17 252 321 288 362 346 166 142 115 127 139 266 266
18 271 294 265 257 234 151 142 139 204 152 177 436
19 265 261 270 281 240 181 136 162 121 128 144 189
20 305 237 293 250 220 172 130 164 127 135 155 189
21 241 249 323 245 188 201 122 162 120 127 148 294
22 207 285 378 243 193 159 129 345 116 123 155 220
23 222 292 314 269 204 168 347 164 273 125 314 302
24 319 310 318 234 174 179 204 170 390 120 183 279
25 348 508 311 229 170 193 199 126 166 136 300 381
26 333 313 273 239 172 285 218 111 177 115 162 364
27 249 291 274 273 166 288 157 105 188 214 214 300
28 249 326 271 238 171 425 141 390 270 227 188 413
29 234 269 273 233 177 215 155 133 153 338 164 251
30 210   275 437 186 167 146 127 360 499 226 268
31 301   322   162   143 136   200   244