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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
1 110 122 123 130 172 110 76 127 84 114 130 93
2 111 104 167 137 133 131 72 136 85 117 98 94
3 105 117 132 146 120 119 73 117 82 110 94 94
4 102 147 112 131 118 131 74 150 82 97 83 87
5 102 143 120 119 127 130 71 119 81 95 82 86
6 102 151 109 110 130 133 71 109 79 99 88 84
7 101 157 102 109 123 126 93 105 137 95 85 93
8 98 128 101 115 116 124 117 106 267 90 78 102
9 95 109 102 115 112 116 101 102 145 91 74 107
10 100 103 116 107 105 115 85 94 137 90 78 104
11 114 103 175 104 107 120 80 87 119 116 76 126
12 126 102 158 108 110 133 85 81 117 113 79 133
13 114 103 147 128 109 123 86 90 115 98 87 104
14 127 99 153 124 105 116 82 92 104 97 80 101
15 120 98 135 133 111 110 80 90 108 98 75 106
16 117 106 125 136 138 103 81 90 105 92 85 128
17 113 111 119 130 133 101 92 90 102 91 84 122
18 123 102 110 113 117 105 88 84 105 94 79 110
19 116 94 109 107 137 99 85 82 105 86 77 99
20 126 94 107 116 129 97 85 80 111 82 87 97
21 114 95 115 112 121 96 83 74 102 77 80 112
22 104 102 153 110 118 88 77 76 97 74 80 108
23 106 106 125 121 113 84 104 81 131 71 128 109
24 118 114 128 115 111 83 192 84 117 74 111 118
25 136 129 120 107 112 85 183 84 107 78 121 145
26 125 109 113 116 114 89 173 86 105 72 98 141
27 115 106 105 137 116 90 119 93 114 84 100 133
28 108 109 116 130 127 91 108 103 125 99 92 125
29 104 120 129 120 121 85 98 141 143 132 91 117
30 104   136 156 114 77 96 97 131 191 90 109
31 173   144   112   97 86   125   104