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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 02070000 NORTH MAYO RIVER NEAR SPENCER, VA


Henry County, Virginia
Hydrologic Unit Code 03010103
Latitude  36°34'05", Longitude  79°59'15" NAD27
Drainage area 108  square miles
Gage datum 730.39 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 1928-10-01 -> 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
1 159 127 184 171 135 119 95 98 103 142 106 135
2 142 151 176 149 136 108 115 91 77 143 100 113
3 154 151 164 148 136 116 113 91 79 106 102 112
4 150 167 196 155 150 114 104 90 84 102 111 131
5 139 146 185 183 149 160 118 84 93 100 122 131
6 133 181 185 166 147 124 138 86 130 84 94 117
7 146 193 171 154 140 122 103 89 153 83 93 125
8 154 149 161 165 140 142 108 87 161 94 91 127
9 164 130 160 193 141 168 90 89 86 145 97 118
10 153 148 158 185 123 149 91 107 83 154 125 116
11 140 172 148 150 117 131 98 96 79 115 110 127
12 136 151 158 158 120 116 114 88 72 104 169 136
13 130 167 166 179 132 123 106 99 74 91 132 118
14 152 163 173 169 133 115 123 118 85 83 107 123
15 155 142 148 170 143 109 109 94 83 89 104 132
16 151 160 142 193 155 133 99 100 118 88 109 128
17 132 159 173 161 135 138 97 110 181 152 100 113
18 137 153 164 141 124 115 93 192 157 94 102 114
19 148 154 184 150 135 110 90 109 93 139 114 111
20 151 134 194 168 163 107 98 96 91 132 113 111
21 156 150 187 139 192 163 99 104 77 97 93 148
22 148 163 162 141 165 140 101 102 144 102 99 132
23 150 196 167 134 130 109 99 86 103 125 97 124
24 155 171 203 174 142 111 93 94 80 111 100 136
25 202 164 166 175 139 99 89 98 77 90 119 134
26 166 158 169 162 126 112 91 82 83 109 110 131
27 146 141 164 162 137 104 97 80 101 105 109 135
28 167 156 192 173 142 105 99 82 118 98 113 147
29 134 115 195 149 135 131 91 84 125 107 129 168
30 122   199 144 142 110 106 77 166 98 120 138
31 129   175   128   105 102   119   132