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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 01660920 ZEKIAH SWAMP RUN NEAR NEWTOWN, MD


Charles County, Maryland
Hydrologic Unit Code 02070011
Latitude  38°29'26.1", Longitude  76°55'37.5" NAD83
Drainage area 79.9  square miles
Gage datum 34.05 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 1982-10-01 -> 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
1 103 99 134 163 165 79 29 31 27 47 66 98
2 134 111 143 139 131 70 30 24 48 54 60 89
3 127 121 178 141 112 68 43 30 26 55 56 95
4 113 140 176 150 111 90 33 130 19 41 55 92
5 108 172 183 134 122 93 31 86 30 32 64 98
6 101 155 153 133 143 84 38 40 38 30 83 111
7 103 144 161 135 135 96 132 42 78 29 82 114
8 111 131 157 139 124 95 75 33 302 25 78 169
9 118 112 152 139 105 72 63 25 115 32 88 119
10 153 109 152 124 92 74 53 32 78 32 75 118
11 129 145 161 113 93 86 27 30 92 29 62 129
12 127 163 135 109 178 68 28 37 47 149 150 146
13 125 159 128 116 146 56 39 63 48 53 156 127
14 119 143 137 118 105 54 36 48 41 33 121 134
15 120 132 139 126 83 57 26 60 27 37 88 146
16 107 140 130 153 124 73 26 42 42 41 98 156
17 109 143 140 156 136 66 23 31 82 32 117 164
18 111 134 155 129 129 56 20 32 41 31 89 165
19 129 128 152 118 130 78 20 31 35 41 72 124
20 166 122 147 116 105 68 31 23 35 52 66 99
21 143 121 188 111 94 63 31 33 27 61 65 102
22 104 139 208 113 82 54 54 48 22 58 71 103
23 95 166 169 109 85 52 62 38 42 45 80 101
24 124 198 174 101 82 50 36 27 74 43 76 107
25 137 178 159 105 74 44 32 15 52 39 87 141
26 133 137 144 106 87 34 33 14 50 40 87 164
27 122 120 152 97 92 39 37 20 62 49 94 138
28 126 119 193 90 87 53 38 50 60 76 103 136
29 151 115 250 90 93 37 42 77 64 95 110 135
30 119   228 118 101 29 42 59 53 159 107 113
31 101   170   79   34 30   116   94