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USGS Surface-Water 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 -> 2022-09-30)

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
1 207 233 238 299 285 226 177 214 160 204 200 202
2 220 219 268 311 248 231 166 210 156 182 168 194
3 212 232 247 298 240 219 172 184 144 168 172 195
4 193 255 244 279 248 235 170 200 142 150 154 187
5 186 255 272 282 261 229 167 175 145 153 154 233
6 182 256 251 275 315 221 170 180 256 155 160 206
7 186 251 234 262 268 214 225 175 258 152 153 194
8 206 223 234 257 256 203 219 172 296 181 178 192
9 208 209 247 259 252 201 172 163 218 155 164 205
10 201 207 279 266 242 204 160 160 190 181 169 197
11 218 216 301 251 252 205 159 160 185 198 167 228
12 227 262 267 247 259 205 167 161 174 184 174 217
13 209 234 264 268 255 218 183 189 172 167 173 226
14 218 229 285 253 247 208 172 162 153 166 164 233
15 212 221 271 288 243 198 167 161 149 167 156 211
16 215 224 260 312 273 179 159 162 163 158 206 226
17 213 215 248 290 268 187 161 160 157 156 181 228
18 245 216 243 256 250 187 164 152 185 162 163 208
19 270 207 245 246 262 199 160 150 156 180 161 193
20 278 216 247 253 249 200 162 148 156 169 168 189
21 292 236 289 242 239 194 160 138 154 178 162 215
22 228 262 311 252 234 185 168 148 183 152 161 206
23 218 292 274 256 234 181 184 135 202 159 202 211
24 317 291 301 246 256 189 238 135 161 165 180 216
25 298 325 275 236 239 180 239 132 167 153 191 255
26 298 311 266 234 243 186 219 135 164 144 184 235
27 243 240 270 258 230 186 181 141 182 167 183 216
28 247 235 276 248 226 187 177 176 211 186 244 218
29 216 234 314 236 235 182 174 183 193 220 220 207
30 216   316 283 228 168 184 149 185 269 204 195
31 277   301   218   174 139   191   189