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USGS Daily Statistics for the Nation

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 01648010 ROCK CREEK AT JOYCE RD WASHINGTON, DC


District Of Columbia, Dist. of Columbia
Hydrologic Unit Code 020700100102
Latitude  38°57'36.6", Longitude  77°02'31.4" NAD83
Drainage area 63.7  square miles
Gage datum 136.35 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 2012-10-01 -> 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 83 81 94 111 193 60 72 114 141 60 101 76
2 100 76 109 83 121 77 77 85 69 78 62 57
3 101 131 85 111 144 157 171 62 85 49 68 69
4 90 135 93 74 126 75 62 157 44 39 46 47
5 69 108 99 68 162 126 65 69 30 31 75 74
6 82 86 86 129 133 78 72 85 98 23 68 68
7 66 104 74 111 152 110 93 123 72 36 57 74
8 56 72 70 103 97 71 104 104 62 29 44 39
9 134 63 91 82 80 104 130 111 92 35 40 84
10 142 70 105 62 76 89 49 86 188 50 49 60
11 94 124 87 59 118 138 60 68 87 97 62 86
12 89 98 101 66 107 76 88 184 93 107 101 46
13 101 116 78 127 113 76 60 81 88 47 78 38
14 72 82 95 77 74 57 66 49 41 36 42 75
15 68 67 70 116 72 73 75 94 33 54 59 172
16 80 134 60 183 174 45 54 85 33 53 85 195
17 83 100 60 81 105 54 49 95 48 31 54 135
18 61 92 68 79 106 63 55 58 99 24 45 180
19 59 80 87 82 123 50 48 46 26 39 44 81
20 115 71 76 136 74 67 44 81 21 50 35 71
21 63 82 128 73 71 83 113 73 21 32 47 101
22 55 88 98 68 133 71 195 74 46 46 63 89
23 68 87 108 58 122 167 125 58 135 27 33 147
24 133 131 121 66 89 79 104 42 101 24 102 137
25 137 116 108 73 74 72 89 35 63 34 72 165
26 89 80 73 68 68 66 55 34 63 55 78 130
27 72 91 90 72 93 125 46 41 60 73 95 110
28 124 94 93 76 118 76 153 27 92 41 49 111
29 68 70 78 74 96 48 206 36 87 218 42 122
30 62   118 255 66 49 85 26 71 194 94 82
31 121   118   67   90 45   74   75