Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Notice of planned maintenance to underlying USGS network September 24-26, 2021: During this maintenance period users may experience intermittent periods of inaccessibility or delayed delivery of hydrologic data to the USGS National Water Information System (NWIS). Please email gs-w_support_nwisweb@usgs.gov with any concerns regarding impacts to data delivery.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
  • Full News RSS icon

USGS Surface-Water Daily Statistics for Maryland

Click to hide state-specific text

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 02070010
Latitude  38°57'36.6", Longitude  77°02'31.4" NAD83
Drainage area 63.7  square miles
Gage datum 136.78 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 -> 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 85 89 111 106 232 70 83 151 42 51 132 93
2 92 86 116 79 143 71 69 115 74 94 77 68
3 106 148 93 69 179 190 90 81 112 53 86 60
4 99 129 96 62 111 90 56 219 54 35 57 49
5 76 119 100 62 186 159 71 72 33 28 100 88
6 69 97 95 96 144 92 77 112 78 22 90 80
7 58 124 80 101 119 132 106 108 84 43 73 90
8 56 81 78 102 88 84 139 59 75 33 55 44
9 52 71 74 85 77 98 66 42 102 43 50 104
10 88 81 97 61 79 105 49 38 265 65 57 64
11 88 153 93 60 138 174 74 28 71 133 61 59
12 90 110 101 65 111 92 109 241 113 148 112 41
13 88 94 82 153 127 93 38 100 80 54 102 38
14 72 85 109 87 82 68 48 52 47 37 52 89
15 69 70 78 139 77 85 83 59 39 63 66 158
16 87 155 64 229 212 53 59 100 32 67 85 213
17 58 82 64 94 125 65 48 59 54 34 64 137
18 58 94 77 83 125 78 53 66 114 26 50 89
19 59 85 103 83 149 61 44 48 27 49 49 72
20 115 76 88 165 86 83 52 37 22 65 39 66
21 61 93 158 84 79 103 142 86 24 39 32 114
22 55 102 119 69 137 77 271 89 33 60 30 74
23 69 101 83 61 127 86 173 73 39 32 30 107
24 157 160 115 75 92 66 119 49 36 25 126 151
25 152 123 94 87 82 79 108 40 55 23 86 194
26 89 90 76 80 79 75 67 31 35 23 96 148
27 78 107 89 86 95 135 59 28 62 92 117 113
28 65 107 103 62 118 88 213 26 103 49 56 114
29 58 68 83 67 104 55 248 46 112 249 49 143
30 59   142 298 69 48 101 27 87 245 115 91
31 141   139   78   114 51   89   83