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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 01645000 SENECA CREEK AT DAWSONVILLE, MD


Montgomery County, Maryland
Hydrologic Unit Code 02070008
Latitude  39°07'41.1", Longitude  77°20'08.8" NAD83
Drainage area 101  square miles
Gage datum 213.31 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 1929-10-01 -> 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
1 165 125 158 196 152 105 95 84 83 126 96 111
2 153 140 149 210 132 128 95 75 60 84 72 119
3 150 159 168 183 136 134 114 65 58 68 78 98
4 137 159 173 166 136 138 88 109 82 58 69 114
5 121 146 178 173 138 134 83 67 91 56 83 139
6 116 140 176 158 190 123 88 78 164 59 76 119
7 120 168 180 157 166 151 73 66 101 58 81 122
8 115 140 156 152 145 112 119 80 157 69 103 116
9 141 118 151 161 132 100 91 85 110 80 99 125
10 130 120 152 167 125 146 82 79 72 90 90 111
11 115 134 154 138 129 116 81 66 113 68 82 183
12 125 147 165 139 162 106 74 89 155 69 93 125
13 123 162 162 175 137 133 81 109 73 62 104 132
14 148 174 175 154 124 124 84 67 87 75 90 132
15 122 157 156 172 128 96 81 66 66 67 84 128
16 120 145 149 190 197 90 75 62 81 77 103 148
17 106 140 161 175 154 96 69 68 79 63 102 122
18 115 145 150 139 142 145 74 84 74 76 82 138
19 169 162 163 133 168 122 73 67 72 109 83 108
20 165 149 161 151 123 117 77 83 54 76 97 105
21 143 144 218 145 134 131 149 74 59 73 91 133
22 120 158 198 146 130 216 103 77 80 63 106 119
23 114 177 207 136 148 122 97 94 110 104 91 127
24 152 187 194 131 147 96 89 88 86 81 89 119
25 165 199 153 136 130 85 73 61 96 85 119 132
26 186 197 175 153 138 128 66 73 154 83 99 161
27 135 151 170 164 136 128 67 89 93 100 97 132
28 150 147 189 148 141 116 91 65 82 98 165 118
29 126 142 191 127 132 86 95 60 71 109 134 124
30 130   184 155 111 100 77 54 86 125 114 135
31 155   184   114   87 52   79   122