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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 02056900 BLACKWATER RIVER NEAR ROCKY MOUNT, VA


Franklin County, Virginia
Hydrologic Unit Code 03010101
Latitude  37°02'42", Longitude  79°50'40" NAD27
Drainage area 115  square miles
Gage datum 876.45 feet above NGVD29
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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 1976-10-01 -> 2019-09-30)

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
1 142 129 223 183 150 104 82 71 62 116 85 169
2 135 140 191 194 152 112 95 81 60 116 101 140
3 137 167 182 205 144 114 111 82 58 105 105 133
4 177 207 251 187 152 123 126 71 68 95 169 122
5 133 159 238 201 190 242 152 60 95 83 213 134
6 113 144 230 173 174 151 102 74 225 72 114 116
7 131 142 201 167 170 163 81 63 192 76 112 153
8 155 128 176 159 158 211 83 59 197 132 118 125
9 156 131 177 229 151 239 82 102 101 199 100 131
10 127 130 197 271 148 169 72 74 75 126 118 129
11 140 153 171 196 137 146 87 61 65 168 119 141
12 149 148 156 174 132 126 95 101 67 120 200 136
13 124 127 184 177 129 144 87 80 59 110 134 132
14 169 155 171 239 139 109 108 62 61 90 98 130
15 194 140 178 228 143 99 120 53 57 84 106 140
16 184 163 182 310 138 110 80 60 94 75 128 147
17 152 173 183 226 134 131 87 80 144 72 114 124
18 160 162 196 197 149 114 79 144 84 79 96 117
19 203 149 187 179 156 129 66 78 83 82 122 108
20 167 150 204 215 145 104 67 77 63 77 104 107
21 153 160 254 240 134 96 62 68 70 84 91 132
22 138 218 193 261 137 98 63 62 164 83 93 115
23 152 235 174 165 139 103 77 58 124 104 107 141
24 162 238 212 272 140 100 68 87 76 82 113 142
25 217 225 176 273 157 89 65 63 67 91 114 151
26 204 208 180 295 130 156 80 58 81 141 116 149
27 177 170 186 275 129 149 74 61 109 106 119 126
28 188 160 254 188 130 106 75 63 173 118 112 138
29 143 143 228 179 135 108 63 55 136 91 154 141
30 130   219 160 123 92 66 50 174 80 129 123
31 167   204   111   77 52   77   118