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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 01649500 NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD


Prince George'S County, Maryland
Hydrologic Unit Code 02070010
Latitude  38°57'36.9", Longitude  76°55'33.5" NAD83
Drainage area 72.8  square miles
Gage datum 11.55 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 1937-10-01 -> 2025-09-30)

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
1 138 97 110 145 106 75 65 63 88 66 53 86
2 119 114 107 147 89 81 66 60 49 63 50 77
3 101 123 128 130 89 132 96 70 49 50 57 76
4 107 130 125 117 105 107 87 80 43 38 59 81
5 97 117 128 114 105 101 60 84 72 42 68 120
6 87 103 134 125 135 74 60 77 99 40 66 97
7 94 126 126 117 116 123 57 53 80 43 81 108
8 94 99 120 110 91 64 61 71 71 83 107 98
9 120 81 133 113 101 61 71 94 55 49 78 109
10 109 83 119 107 77 96 58 97 67 62 68 87
11 87 101 98 97 80 80 56 77 71 46 65 130
12 95 113 119 94 141 53 52 97 77 48 114 93
13 79 126 133 139 110 71 89 109 64 34 83 115
14 118 112 139 103 84 81 104 59 59 74 72 108
15 84 110 112 158 97 67 64 56 40 53 74 112
16 82 120 120 134 156 53 63 49 96 73 82 139
17 76 103 126 97 109 56 46 43 65 59 66 105
18 90 115 105 79 96 91 64 80 78 52 49 119
19 121 149 134 81 99 82 46 58 50 73 58 75
20 119 108 129 115 83 98 65 95 33 59 71 71
21 92 104 189 99 77 91 73 71 46 61 68 103
22 80 141 138 97 82 117 66 40 62 46 88 99
23 97 142 160 79 91 78 81 49 98 55 64 100
24 120 134 148 83 88 64 60 42 56 42 66 102
25 132 121 100 85 91 60 75 68 78 73 93 107
26 138 111 143 102 132 103 46 51 137 85 87 123
27 95 94 138 113 78 66 67 74 79 105 78 88
28 124 106 146 120 89 59 90 80 64 79 124 91
29 86 95 143 83 95 47 73 38 52 114 106 96
30 83   129 114 74 53 50 30 65 78 93 95
31 82   124   80   46 51   50   96