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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 01580000 DEER CREEK AT ROCKS, MD


Harford County, Maryland
Hydrologic Unit Code 02050306
Latitude  39°37'47.9", Longitude  76°24'11.9" NAD83
Drainage area 94.4  square miles
Gage datum 249.60 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 1926-10-01 -> 2020-09-30)

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
1 165 136 156 185 160 138 113 94 97 109 96 116
2 145 146 157 190 150 156 103 100 77 104 98 110
3 166 168 170 172 157 132 113 94 76 85 107 109
4 149 154 178 164 160 138 112 114 86 77 94 125
5 127 144 199 187 158 135 129 95 80 74 91 128
6 131 151 180 188 191 135 102 84 112 80 86 120
7 123 188 169 176 160 121 117 85 103 73 93 120
8 120 156 161 173 154 124 120 80 109 108 112 125
9 147 133 167 169 154 116 101 92 93 82 108 123
10 128 137 175 172 144 125 107 108 93 88 101 113
11 124 144 190 153 144 120 104 88 102 92 91 138
12 124 170 178 161 158 121 105 101 99 79 96 133
13 117 176 183 168 159 141 142 137 86 75 115 132
14 154 177 197 164 144 141 119 87 87 81 107 130
15 140 161 179 185 145 124 115 81 77 77 101 118
16 131 154 160 204 160 110 95 77 106 81 134 132
17 116 153 159 179 156 114 87 111 98 82 122 125
18 138 147 156 158 153 114 99 111 97 88 101 120
19 170 159 168 156 154 119 102 89 81 102 96 109
20 170 153 164 170 145 118 92 80 75 89 107 117
21 160 159 200 153 143 120 102 82 81 102 105 146
22 133 171 202 169 146 190 103 93 94 92 103 118
23 124 175 184 159 150 138 130 140 95 104 107 115
24 160 197 182 157 150 128 105 105 82 85 98 115
25 181 186 160 158 141 111 100 89 98 86 127 124
26 203 208 176 177 153 113 93 83 100 99 111 162
27 154 186 175 174 134 131 93 95 103 94 103 125
28 150 171 182 177 144 128 102 93 100 100 139 132
29 136 161 174 152 137 117 88 79 90 113 130 124
30 139   180 171 138 109 94 70 118 108 119 128
31 141   175   133   86 89   86   118