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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°37'08.0", Longitude  76°41'25.1" 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 17 - 18 years of record in, ft3/s   (Calculation Period 1999-10-01 -> 2018-09-30)

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 92 121 103 127 170 106 72 117 86 111 97 83
2 90 101 159 136 130 129 72 129 87 114 88 82
3 90 116 123 148 118 110 76 110 84 108 82 86
4 90 152 100 132 115 120 78 101 80 94 78 80
5 90 147 114 119 119 123 75 94 77 93 76 78
6 94 153 104 108 119 129 74 92 75 103 76 79
7 95 156 97 108 115 122 100 92 144 97 74 90
8 91 123 97 114 110 122 121 97 294 91 72 101
9 88 106 99 114 104 113 105 93 138 91 68 109
10 95 100 108 108 100 112 87 85 111 89 68 102
11 113 98 178 105 102 113 77 83 104 118 71 129
12 126 94 161 110 103 129 81 83 108 116 73 138
13 112 92 149 116 97 119 84 89 108 100 76 105
14 127 91 157 112 92 113 80 88 98 98 71 97
15 121 91 136 130 104 107 78 85 103 99 68 97
16 116 97 125 139 138 99 79 86 100 95 71 90
17 113 104 119 136 133 98 93 86 98 96 73 96
18 126 93 108 115 113 105 87 79 103 99 70 94
19 115 86 104 109 138 99 85 76 104 92 70 89
20 102 87 103 118 126 98 86 76 112 91 83 89
21 104 89 100 114 116 98 84 74 102 85 76 92
22 99 96 96 114 112 89 81 72 99 81 78 88
23 104 102 104 129 106 84 80 72 138 78 134 99
24 105 107 116 119 105 83 86 74 122 81 103 109
25 113 123 106 109 108 81 89 76 110 85 88 102
26 109 103 101 115 111 82 89 79 104 75 82 125
27 105 97 96 136 112 83 83 88 111 81 91 127
28 101 95 107 132 122 84 83 102 119 95 85 109
29 97 127 123 123 117 79 82 150 141 138 87 102
30 100   133 160 110 73 82 102 131 209 83 98
31 182   143   108   86 88   126   93