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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 01581920 GUNPOWDER FALLS NEAR PARKTON, MD


Baltimore County, Maryland
Hydrologic Unit Code 02060003
Latitude  39°37'08.6", Longitude  76°41'25.3" NAD83
Drainage area 81.5  square miles
Gage datum 355.43 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 1999-10-01 -> 2021-09-30)

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
1 111 124 107 130 172 110 76 127 84 114 130 93
2 102 106 159 137 133 131 72 136 85 117 98 94
3 100 120 128 148 120 119 73 117 82 110 94 94
4 100 152 108 133 118 131 74 150 82 97 83 87
5 101 148 119 121 127 130 71 119 81 95 82 86
6 102 156 109 111 130 133 71 109 79 99 88 84
7 101 162 102 111 123 126 93 105 137 95 85 93
8 99 131 101 117 116 124 117 106 267 90 78 102
9 96 112 102 117 112 116 101 102 145 91 74 107
10 102 106 117 108 105 115 85 94 137 90 78 104
11 116 105 180 103 107 120 80 87 119 116 76 126
12 129 104 161 107 110 133 85 81 117 113 79 133
13 117 106 150 129 109 123 86 90 115 98 87 104
14 130 102 156 125 105 116 82 92 104 97 80 101
15 124 100 138 135 111 110 80 90 108 98 75 106
16 119 105 128 138 138 103 81 90 105 92 85 128
17 115 110 121 133 133 101 92 90 102 91 84 122
18 127 101 111 115 117 105 88 84 105 94 79 110
19 119 94 108 109 137 99 85 82 105 86 77 99
20 130 94 107 118 129 97 85 80 111 82 87 97
21 118 97 116 114 121 96 83 74 102 77 80 112
22 106 103 156 113 118 88 77 76 97 74 80 110
23 109 108 128 124 113 84 104 81 131 71 128 111
24 122 115 128 117 111 83 192 84 117 74 111 117
25 141 130 117 109 112 85 183 84 107 78 121 109
26 129 109 112 116 114 89 173 86 105 72 98 128
27 118 104 105 137 116 90 119 93 114 84 100 130
28 111 101 116 130 127 91 108 103 125 99 92 124
29 107 120 130 120 121 85 98 141 143 132 91 118
30 108   138 156 114 77 96 97 131 191 90 111
31 180   147   112   97 86   125   106