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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 -> 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
1 111 124 107 130 172 110 76 129 87 118 135 90
2 102 106 159 137 133 131 72 139 87 121 101 93
3 100 120 128 148 120 119 73 118 85 114 97 95
4 100 152 108 133 118 131 74 151 85 101 86 88
5 101 148 119 121 127 130 71 118 83 98 85 85
6 102 156 109 111 130 133 71 108 81 103 91 84
7 101 162 102 111 123 126 93 105 143 98 88 94
8 99 131 101 117 116 124 117 107 278 93 81 103
9 96 112 102 117 112 116 101 104 148 94 76 110
10 102 106 117 108 105 115 85 96 140 94 80 107
11 116 105 180 103 107 120 80 90 122 120 78 131
12 129 104 161 107 110 133 85 84 120 117 79 138
13 117 106 150 129 109 123 86 93 118 101 87 107
14 130 102 156 125 105 116 82 95 107 100 80 102
15 124 100 138 135 111 110 80 93 112 101 76 107
16 119 105 128 138 138 103 81 93 109 96 86 130
17 115 110 121 133 133 101 92 94 106 95 86 122
18 127 101 111 115 117 105 88 87 109 98 81 111
19 119 94 108 109 137 99 85 85 108 89 79 101
20 130 94 107 118 129 97 85 82 115 84 90 98
21 118 97 116 114 121 96 83 77 105 80 83 115
22 106 103 156 113 118 88 77 79 101 76 83 110
23 109 108 128 124 113 84 108 84 136 73 132 111
24 122 115 128 117 111 83 200 87 121 76 115 117
25 141 130 117 109 112 85 191 87 111 80 126 109
26 129 109 112 116 114 89 180 89 109 74 101 128
27 118 104 105 137 116 90 120 96 118 86 104 130
28 111 101 116 130 127 91 108 107 130 102 95 124
29 107 120 130 120 121 85 97 147 149 137 93 118
30 108   138 156 114 77 95 101 137 199 89 111
31 180   147   112   99 89   130   106