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USGS Surface-Water Daily Statistics for the Nation

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 01639000 MONOCACY RIVER AT BRIDGEPORT, MD


Frederick County, Maryland
Hydrologic Unit Code 02070009
Latitude  39°40'44.6", Longitude  77°14'04.3" NAD83
Drainage area 173  square miles
Gage datum 340.18 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 1941-10-01 -> 2023-09-30)

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
1 324 203 414 391 231 151 58 67 91 139 151 239
2 402 304 372 460 174 230 56 75 104 91 132 261
3 307 352 301 359 225 138 68 70 50 91 185 264
4 334 416 394 338 304 155 76 105 74 55 110 286
5 256 334 619 404 287 151 83 56 46 69 137 327
6 243 290 541 299 355 122 72 39 167 48 118 231
7 219 383 541 290 373 129 103 44 137 36 122 315
8 297 293 402 262 238 100 104 64 146 58 199 263
9 307 227 387 268 214 92 86 74 127 199 207 262
10 275 279 383 328 186 109 136 64 110 133 140 245
11 208 286 468 209 165 124 59 58 77 128 123 455
12 247 276 397 214 274 150 79 62 58 111 170 354
13 239 329 444 378 203 178 95 155 54 84 186 335
14 238 417 487 380 173 130 61 108 74 90 122 316
15 265 383 480 421 177 111 70 53 133 101 154 260
16 291 340 351 404 360 72 96 34 51 126 157 358
17 194 325 407 369 229 102 86 37 77 90 188 339
18 217 363 303 207 228 98 104 82 198 110 134 231
19 283 372 406 197 249 252 90 59 114 162 140 205
20 419 399 470 288 200 117 58 56 64 122 185 210
21 265 431 533 261 284 172 77 61 89 107 179 330
22 268 396 669 288 265 323 132 65 139 63 268 261
23 284 483 563 207 177 232 97 57 295 118 294 255
24 425 611 513 229 154 90 88 45 115 95 151 276
25 459 529 378 230 141 82 76 52 165 96 220 341
26 394 477 347 275 165 132 60 34 191 163 194 374
27 416 412 389 271 127 137 91 30 130 136 177 303
28 360 399 359 278 182 202 69 30 186 149 346 231
29 245 376 390 208 240 76 75 30 128 180 366 247
30 253   422 298 163 62 54 22 117 234 314 373
31 274   337   141   54 31   135   267