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USGS Daily Statistics for the Nation

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 02203900 SOUTH RIVER AT FLAKES MILL ROAD NR ATLANTA, GA


Dekalb County, Georgia
Hydrologic Unit Code 03070103
Latitude  33°39'56.8", Longitude  84°13'26.4" NAD83
Drainage area 99.00  square miles
Gage datum 717.72 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 1978-10-01 -> 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
1 171 110 141 220 155 99 102 122 159 365 86 159
2 277 219 203 135 108 78 91 145 182 207 258 88
3 393 553 235 297 153 110 93 177 85 97 92 98
4 552 605 180 239 216 90 131 87 180 108 72 105
5 157 174 298 383 386 87 146 71 122 125 63 157
6 156 247 627 268 145 127 137 94 71 65 85 127
7 160 262 220 294 95 121 140 136 68 107 158 82
8 162 134 386 302 97 219 136 202 59 70 100 133
9 260 174 378 253 122 127 113 153 59 60 167 222
10 137 387 152 154 138 113 153 201 68 135 119 175
11 247 413 136 165 122 108 104 129 130 377 110 130
12 164 308 295 208 103 126 112 85 105 97 151 149
13 175 215 203 150 101 83 94 88 68 145 128 110
14 133 142 121 189 89 121 109 106 152 156 73 139
15 170 141 136 184 108 108 112 85 79 71 160 182
16 174 318 229 131 94 117 105 84 74 55 102 97
17 189 258 511 113 110 111 128 194 251 50 110 150
18 200 262 225 145 122 129 151 130 109 55 91 85
19 178 351 149 403 170 138 218 134 90 59 86 85
20 212 198 152 271 180 171 245 94 88 60 66 140
21 365 232 174 128 139 117 164 97 122 51 80 127
22 390 281 122 121 111 114 136 79 73 74 187 184
23 204 300 191 199 230 110 103 93 51 103 125 229
24 261 233 205 236 206 193 159 112 54 83 123 594
25 361 155 184 187 85 140 137 104 118 153 90 406
26 163 195 195 129 117 135 92 107 176 215 129 224
27 198 166 287 119 182 151 150 72 582 78 107 109
28 155 139 245 132 168 144 82 69 160 75 81 389
29 113 124 276 144 116 109 101 105 135 112 125 319
30 194   251 166 115 106 115 108 97 72 237 345
31 152   170   80   98 128   66   222