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USGS 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 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
1 165 125 158 196 151 106 96 84 83 126 96 111
2 153 140 149 208 132 128 95 75 60 84 72 119
3 150 159 167 182 135 134 114 65 58 68 78 98
4 137 159 172 165 137 137 88 109 82 58 69 114
5 121 146 177 171 138 134 83 67 91 56 83 139
6 116 140 175 157 192 122 88 78 164 59 76 119
7 120 168 179 156 166 150 73 66 101 58 81 122
8 115 140 155 152 145 111 119 80 157 69 103 116
9 141 118 150 160 133 100 91 85 110 80 99 125
10 130 120 151 166 125 146 82 79 72 90 90 111
11 115 134 153 137 128 116 81 66 113 68 82 183
12 125 147 164 139 161 105 74 89 155 69 93 125
13 123 162 161 174 140 133 81 109 73 62 104 132
14 148 173 174 153 130 124 84 67 87 75 90 132
15 122 156 155 171 131 96 81 66 66 67 84 128
16 120 147 148 189 199 91 75 62 81 77 103 148
17 106 141 160 174 157 97 69 68 79 63 102 122
18 115 145 149 138 142 151 74 84 74 76 82 138
19 169 161 162 132 168 126 73 67 72 109 83 108
20 165 149 160 150 123 119 77 83 54 76 97 105
21 143 143 216 144 134 131 149 74 59 73 91 133
22 120 157 197 145 130 216 103 77 80 63 106 119
23 114 176 206 135 147 122 97 94 110 104 91 127
24 152 186 193 130 146 96 89 88 86 81 89 119
25 165 198 152 136 130 84 73 61 96 85 119 132
26 186 196 174 153 137 127 66 73 154 83 99 161
27 135 150 169 163 135 127 67 89 93 100 97 132
28 150 147 188 147 143 116 91 65 82 98 165 118
29 126 142 190 126 133 86 95 60 71 109 134 124
30 130   183 154 112 100 77 54 86 125 114 135
31 155   183   118   87 52   79   122