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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 244.06 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 -> 2026-09-30)

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
1 202 227 230 295 281 220 174 208 155 197 192 197
2 214 213 260 311 245 224 163 200 152 177 163 189
3 206 225 239 314 237 212 168 177 141 164 166 190
4 188 246 242 290 247 226 166 191 139 149 150 183
5 181 246 266 285 257 220 163 168 142 152 150 224
6 178 247 247 275 310 214 165 173 249 151 156 199
7 184 242 230 260 279 206 217 174 246 149 149 188
8 201 215 229 254 262 196 210 167 282 175 172 186
9 213 203 243 255 253 195 171 159 210 151 159 198
10 210 200 279 261 242 197 163 156 184 174 164 191
11 214 209 296 247 250 198 158 155 181 189 163 227
12 221 252 262 245 256 198 164 155 169 177 169 212
13 208 230 258 263 253 210 179 180 166 163 168 218
14 213 223 278 248 247 201 172 159 148 163 159 224
15 207 215 264 282 242 192 165 155 145 164 151 207
16 209 219 253 305 269 175 158 155 157 155 201 231
17 207 212 242 283 263 182 165 153 153 153 176 226
18 237 211 237 251 245 183 163 147 178 158 161 223
19 261 202 238 241 256 195 159 146 152 174 158 191
20 269 211 240 247 242 195 160 142 152 165 166 185
21 281 229 279 238 233 189 158 133 151 173 160 209
22 221 253 299 248 229 181 165 144 179 149 163 200
23 213 281 269 252 229 178 183 134 195 155 196 219
24 305 280 295 242 247 186 229 134 159 161 175 215
25 287 311 269 232 231 177 228 132 164 149 185 248
26 289 298 260 230 235 182 209 135 162 141 179 228
27 237 232 263 250 224 183 175 140 176 162 178 211
28 244 228 269 242 224 183 171 171 202 180 236 216
29 212 225 304 233 231 177 170 177 186 211 212 203
30 212   305 277 222 165 176 146 179 260 197 190
31 268   291   216   175 136   186   185