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USGS Daily Statistics for Virginia

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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 02069700 SOUTH MAYO RIVER NEAR NETTLERIDGE, VA


Patrick County, Virginia
Hydrologic Unit Code 03010103
Latitude  36°34'15", Longitude  80°07'47" NAD27
Drainage area 85.5  square miles
Gage datum 871.15 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 1962-10-01 -> 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
1 140 123 175 168 144 123 93 90 81 121 91 134
2 131 156 174 155 143 116 102 90 73 114 95 118
3 126 160 163 156 147 116 124 95 80 111 101 107
4 142 168 175 177 159 124 114 96 84 94 135 112
5 135 142 175 174 158 157 137 93 105 91 105 124
6 119 168 177 158 156 132 126 89 113 77 100 108
7 129 166 165 155 154 120 105 97 101 91 92 127
8 141 139 151 150 150 131 95 106 96 96 95 117
9 157 130 151 184 149 153 91 103 79 106 101 120
10 135 134 153 193 144 129 89 129 77 82 112 120
11 138 157 140 159 133 113 93 98 80 114 118 128
12 140 148 170 155 131 123 104 101 72 95 162 121
13 136 166 156 165 137 135 106 102 73 91 128 114
14 161 157 170 171 157 121 104 87 84 82 108 114
15 164 138 144 177 148 118 103 84 74 76 100 127
16 148 159 139 187 144 156 98 86 98 84 108 131
17 133 150 174 164 139 142 89 91 121 86 100 116
18 138 143 169 151 135 129 90 191 87 85 91 109
19 133 139 170 153 137 126 95 98 84 98 96 103
20 135 133 171 169 152 128 111 98 79 80 94 103
21 145 137 186 180 179 214 92 95 76 79 88 124
22 129 157 153 161 164 123 91 90 185 82 92 124
23 135 184 149 140 149 109 97 80 102 107 91 133
24 146 172 178 197 149 111 87 91 82 95 94 145
25 197 164 165 182 141 105 95 90 74 94 108 142
26 174 149 174 174 130 113 94 76 82 106 112 136
27 156 136 165 180 139 105 108 78 104 100 106 129
28 165 144 185 180 165 99 100 92 144 92 103 131
29 133 117 191 157 162 105 88 73 162 103 118 137
30 124   196 153 139 92 89 74 116 94 109 117
31 128   171   122   99 96   109   122