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


Page Loading - Please Wait...

Click to hideNews Bulletins

USGS Daily Statistics for Virginia

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 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
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 1976-10-01 -> 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
1 142 129 221 183 159 111 85 71 69 115 98 175
2 141 139 189 193 157 118 97 82 62 115 105 144
3 140 166 180 203 147 119 113 82 60 104 107 134
4 177 205 248 186 154 127 127 72 69 95 167 124
5 135 158 235 199 190 244 152 61 95 83 210 146
6 115 169 228 172 175 160 103 75 218 73 114 121
7 132 170 199 166 170 166 83 65 187 76 112 154
8 155 138 175 158 158 213 84 61 192 130 118 127
9 156 136 176 227 151 239 84 104 100 194 100 132
10 127 134 195 267 149 171 73 75 75 124 117 130
11 140 158 170 194 137 149 88 62 66 166 143 141
12 159 153 155 173 132 128 96 101 68 124 287 136
13 129 133 183 221 129 145 88 81 60 111 152 132
14 170 159 170 250 139 111 108 65 62 90 109 139
15 192 143 176 234 143 102 120 60 58 85 113 147
16 182 165 180 310 137 113 81 67 94 75 132 152
17 152 174 182 226 134 173 88 82 143 73 117 133
18 159 163 194 198 148 150 80 142 88 80 99 122
19 200 150 185 179 168 150 68 79 83 82 124 112
20 166 150 202 214 194 117 68 78 64 79 106 110
21 152 160 251 239 231 106 64 70 71 85 93 134
22 137 216 191 259 195 106 64 64 160 83 95 117
23 151 233 173 165 161 109 78 60 122 104 108 141
24 161 236 210 270 159 106 69 89 76 82 114 143
25 227 223 178 271 177 94 66 64 68 92 114 156
26 205 206 181 296 141 159 81 59 84 139 116 151
27 177 170 186 274 138 151 75 62 109 114 119 127
28 187 160 252 188 150 109 75 64 169 119 112 138
29 143 141 226 179 148 111 64 56 134 110 152 141
30 130   217 184 133 95 67 51 174 91 136 125
31 166   202   119   78 59   84   120