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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 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
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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 1946-10-01 -> 2021-09-30)

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
1 195 162 265 262 146 102 58 41 29 35 59 143
2 189 166 230 284 139 102 44 46 24 34 62 131
3 182 179 217 242 151 105 53 37 20 38 62 133
4 168 167 288 253 173 106 78 37 22 40 71 140
5 185 168 357 248 189 96 53 40 21 38 95 130
6 157 167 315 221 186 112 56 71 44 35 80 127
7 152 180 253 232 175 108 46 41 50 34 78 160
8 151 177 239 214 190 89 51 35 34 35 86 157
9 140 168 223 239 185 80 61 43 79 51 75 165
10 150 181 241 231 176 88 75 37 49 45 72 168
11 163 185 264 205 176 81 70 32 30 44 73 164
12 182 180 266 219 172 75 52 49 31 38 95 160
13 162 183 323 237 166 92 65 43 39 33 83 154
14 144 184 308 213 151 85 52 32 49 33 72 155
15 157 187 286 222 158 68 51 32 33 68 74 158
16 155 194 239 221 175 72 40 27 33 63 92 158
17 140 178 239 209 157 75 39 36 47 41 89 149
18 146 203 230 178 185 76 33 50 51 43 79 155
19 189 239 247 170 167 67 51 39 62 43 92 146
20 158 214 282 168 150 77 40 41 39 43 102 143
21 140 232 292 154 140 89 35 50 49 44 92 153
22 130 220 282 163 126 70 37 43 59 42 98 153
23 150 239 259 166 129 94 48 44 40 50 97 159
24 192 257 289 178 129 90 40 33 32 61 91 162
25 201 262 257 188 119 67 34 25 41 50 92 173
26 193 224 241 173 113 53 29 21 43 45 108 159
27 175 206 241 162 113 65 35 24 45 51 110 151
28 166 217 272 171 125 63 30 32 55 51 149 134
29 174 216 278 172 118 54 60 25 41 74 144 140
30 183   264 168 97 50 41 27 43 66 124 160
31 171   255   106   48 34   61   163