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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 01613095 TONOLOWAY CREEK NEAR HANCOCK, MD


Washington County, Maryland
Hydrologic Unit Code 02070004
Latitude  39°42'22.9", Longitude  78°09'09.9" NAD83
Drainage area 113  square miles
Gage datum 398.83 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 2005-10-01 -> 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
1 130 132 333 165 222 68 35 54 90 47 81 169
2 142 141 325 191 158 93 28 82 103 49 54 119
3 156 158 240 303 149 109 24 54 29 48 48 106
4 140 208 265 258 240 93 23 41 17 37 40 85
5 114 180 390 171 340 118 30 83 14 29 66 69
6 94 147 229 158 306 105 25 37 22 22 68 64
7 98 135 229 180 396 65 50 35 143 21 53 134
8 115 157 189 160 259 48 39 42 66 23 52 167
9 129 129 214 137 175 47 27 177 176 20 94 127
10 223 107 389 115 135 46 23 60 271 18 101 128
11 192 132 367 147 132 148 19 37 103 22 57 97
12 203 149 263 187 270 80 22 26 99 36 103 111
13 233 164 258 226 242 65 20 34 150 28 77 76
14 175 159 272 182 216 56 20 31 90 41 59 76
15 132 131 196 261 213 45 18 21 94 57 50 100
16 123 170 156 280 250 39 13 16 48 42 81 244
17 119 177 131 264 182 37 12 19 32 31 118 158
18 139 168 120 171 258 73 15 19 41 30 92 146
19 119 148 154 152 214 47 18 18 34 24 83 134
20 113 140 162 271 162 46 19 15 24 25 75 126
21 93 150 149 322 119 56 28 62 18 19 67 142
22 78 179 171 235 98 43 19 70 16 18 84 161
23 119 190 143 193 127 45 22 37 70 17 150 199
24 178 203 141 151 115 59 42 25 42 29 103 171
25 331 294 146 130 89 42 56 18 90 31 102 218
26 215 251 142 125 79 40 38 24 89 29 71 222
27 163 196 129 149 93 124 23 23 60 28 74 198
28 162 224 131 196 84 206 22 16 216 52 57 188
29 140 185 180 208 101 83 82 15 93 120 57 195
30 112   167 234 94 53 34 13 57 333 106 177
31 180   155   94   25 12   125   136