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USGS Surface-Water 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 01589352 GWYNNS FALLS AT WASHINGTON BLVD AT BALTIMORE, MD


Baltimore City, Maryland
Hydrologic Unit Code 02060003
Latitude  39°16'17.4", Longitude  76°38'54.8" NAD83
Drainage area 65.9  square miles
Gage datum 6.68 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 1998-10-01 -> 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
1 138 117 99 118 115 103 61 79 71 83 83 117
2 100 105 156 153 90 91 50 71 61 79 61 68
3 127 144 111 142 76 147 66 75 59 50 57 78
4 88 126 96 92 92 113 62 133 78 55 65 47
5 65 125 107 76 124 115 70 46 110 44 76 69
6 71 131 148 112 90 89 120 55 100 41 82 72
7 80 112 99 90 93 153 163 56 262 85 55 111
8 75 69 83 92 65 64 163 63 206 260 80 78
9 61 61 80 94 83 70 60 50 185 57 49 151
10 88 63 195 70 86 128 52 49 85 93 54 94
11 93 105 110 93 132 166 70 66 101 146 68 202
12 97 92 104 106 176 82 72 207 74 84 102 104
13 64 109 167 156 118 101 65 134 56 47 98 90
14 137 84 119 70 66 80 96 98 47 69 50 158
15 80 72 80 194 95 56 56 104 43 80 65 131
16 88 121 136 148 209 75 57 54 190 95 168 186
17 68 73 82 94 95 58 55 58 55 81 106 177
18 100 92 80 92 92 75 53 75 145 81 52 74
19 80 90 94 78 105 121 48 38 75 73 77 61
20 101 73 134 147 78 122 50 58 39 68 69 67
21 55 98 214 100 77 78 107 88 47 48 47 119
22 50 158 152 108 85 66 226 95 45 71 87 65
23 76 135 152 96 85 91 189 52 165 39 94 164
24 139 150 135 79 88 77 256 61 52 40 115 118
25 129 121 80 126 86 128 147 40 92 66 104 181
26 61 80 81 128 139 161 82 201 102 63 106 187
27 58 91 94 76 194 131 149 89 237 191 99 103
28 55 111 163 106 112 99 105 167 159 136 73 89
29 52 134 113 80 91 57 125 67 116 319 66 106
30 85   182 346 62 57 158 44 162 172 102 68
31 133   123   55   94 64   83   69