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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
1 276 226 327 324 693 155 224 151 303 465 254 252
2 298 291 476 335 275 210 283 254 520 186 154 227
3 255 316 301 373 248 278 199 163 136 194 279 250
4 236 393 290 299 248 219 172 350 127 171 142 187
5 225 350 397 272 257 212 155 179 123 166 139 192
6 234 311 293 253 241 243 155 130 203 132 147 175
7 238 268 318 265 291 198 187 146 284 123 149 191
8 238 283 271 271 270 210 166 211 473 119 153 283
9 266 251 301 256 233 190 166 142 263 120 155 286
10 463 226 467 237 219 215 174 149 197 121 154 212
11 242 258 613 239 214 247 171 147 302 285 143 209
12 270 267 350 257 220 242 213 159 191 165 144 299
13 278 328 382 318 257 300 239 477 155 133 180 218
14 243 277 462 260 267 214 199 213 138 152 158 214
15 225 252 302 330 245 180 199 160 150 163 144 209
16 224 300 298 389 300 164 156 119 148 171 197 259
17 242 327 277 362 346 166 142 115 127 139 255 258
18 260 290 256 257 234 151 142 139 204 152 170 418
19 254 254 260 281 240 181 136 162 121 128 139 183
20 292 230 282 250 220 172 130 164 127 135 150 183
21 231 241 314 245 188 201 122 162 120 127 144 282
22 199 274 365 243 193 159 129 345 116 123 150 212
23 214 280 303 269 204 168 347 164 273 125 301 289
24 306 298 307 234 174 179 204 170 390 120 176 268
25 333 486 300 229 170 193 199 126 166 136 287 364
26 319 300 263 239 172 285 218 111 177 115 156 347
27 239 279 264 273 166 288 157 105 188 214 205 287
28 239 313 261 238 171 425 141 390 270 227 181 395
29 225 269 263 233 177 215 155 133 153 338 158 242
30 202   265 437 186 167 146 127 360 499 217 261
31 289   310   162   143 136   200   237