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USGS Daily Statistics for Maryland

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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 01582500 GUNPOWDER FALLS AT GLENCOE, MD


Baltimore County, Maryland
Hydrologic Unit Code 02060003
Latitude  39°32'58.9", Longitude  76°38'10.0" NAD83
Drainage area 160  square miles
Gage datum 244.13 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 1977-10-01 -> 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
1 204 229 234 298 284 221 174 209 158 199 196 198
2 217 216 264 315 247 226 163 204 155 178 165 190
3 209 228 243 318 237 214 170 180 143 165 169 191
4 190 249 245 293 246 228 169 194 141 149 152 184
5 183 249 270 288 258 222 165 171 144 152 152 227
6 181 251 250 278 311 216 168 176 257 151 158 201
7 186 245 234 263 280 208 223 172 253 149 151 190
8 204 219 232 257 263 198 214 169 291 177 175 188
9 216 205 246 258 253 197 173 159 215 151 161 200
10 213 203 284 264 243 199 159 157 188 176 167 193
11 217 212 301 250 251 200 157 157 185 192 166 228
12 225 255 266 248 257 200 165 157 172 179 172 213
13 211 233 262 267 253 212 180 183 169 164 171 221
14 216 226 282 251 245 203 169 158 150 164 162 227
15 210 218 269 286 242 193 164 157 146 165 154 209
16 212 221 257 309 270 176 157 158 160 156 207 233
17 209 214 245 287 264 183 159 156 154 153 181 228
18 241 214 240 254 246 183 161 148 180 159 162 225
19 265 204 242 244 258 194 157 147 153 176 159 193
20 273 213 243 250 244 195 159 144 153 166 166 187
21 286 232 284 241 235 190 157 135 151 174 160 212
22 225 256 304 251 230 181 165 146 178 149 164 203
23 216 286 273 254 230 178 179 136 198 156 197 222
24 311 284 300 244 250 187 232 137 162 163 176 217
25 292 316 273 234 234 177 232 134 165 151 186 252
26 294 303 264 232 238 183 213 137 160 143 180 231
27 240 235 267 253 227 183 177 142 177 165 179 213
28 248 231 274 244 223 183 173 175 204 183 238 218
29 215 225 309 235 230 177 172 182 187 215 214 205
30 214   310 279 224 165 180 148 180 262 199 192
31 271   295   214   171 138   188   187