Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Surface-Water Daily Statistics for Maryland

Click to hide state-specific text

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 03078000 CASSELMAN RIVER AT GRANTSVILLE, MD


Garrett County, Maryland
Hydrologic Unit Code 05020006
Latitude  39°42'07.9", Longitude  79°08'11.0" NAD83
Drainage area 64.2  square miles
Gage datum 2,088.56 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1946-10-01 -> 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
1 205 165 263 267 146 104 56 40 49 35 59 140
2 204 166 230 289 145 102 43 44 30 38 61 128
3 186 178 216 266 157 103 51 35 21 39 61 131
4 170 177 284 261 183 104 76 35 22 40 69 137
5 183 170 348 250 191 95 52 38 21 37 92 127
6 155 174 308 226 195 116 54 68 42 34 77 124
7 150 183 248 235 191 112 45 40 49 33 76 156
8 148 178 233 215 195 96 50 34 34 34 83 153
9 141 173 226 236 188 91 60 43 77 49 73 162
10 154 180 244 228 181 89 74 37 48 43 69 165
11 162 183 260 203 176 81 68 31 30 42 74 163
12 179 178 260 224 173 75 50 47 31 37 98 158
13 162 183 313 238 175 91 63 43 38 32 82 150
14 143 182 298 211 163 84 51 31 48 33 70 150
15 154 184 281 218 161 68 49 31 32 69 73 153
16 152 196 234 217 174 73 39 26 32 61 91 154
17 139 182 234 204 156 75 38 35 45 40 87 147
18 144 211 224 174 182 75 32 49 49 43 78 153
19 186 236 240 167 164 67 50 38 60 42 89 146
20 157 210 273 166 149 75 39 40 38 41 99 140
21 138 227 281 154 138 86 34 48 47 43 92 149
22 128 218 271 162 129 68 36 41 57 41 103 149
23 146 245 253 163 131 92 47 42 42 49 98 156
24 187 255 288 173 128 88 39 32 33 59 92 158
25 206 262 253 183 117 65 33 24 41 49 93 169
26 207 224 236 170 111 51 29 20 42 44 111 162
27 182 206 235 159 113 63 34 23 44 49 111 151
28 182 228 263 168 129 61 29 31 54 49 149 136
29 179 232 268 168 119 52 58 24 40 73 142 142
30 183   256 168 97 48 40 26 41 66 123 161
31 171   249   115   46 32   62   165