Average Annual Precipitation for South Carolina
The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in South Carolina.
Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.
The annual precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.
You can jump to a separate table for each region of the state: Coast & Lowcountry, Midlands and Upstate.
Coast & Lowcountry
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 106 | Beaufort | 45.4 | 1152 |
| 100 | Brookgreen Gardens | 54.2 | 1376 |
| 113 | Charleston | 51.0 | 1296 |
| 90 | Edisto Island | 45.4 | 1154 |
| 96 | Georgetown | 56.2 | 1428 |
| 100 | Hilton Head Island | 50.3 | 1278 |
| 128 | McClellanville | 52.2 | 1325 |
| – | Myrtle Beach | 51.4 | 1305 |
| 105 | Lake Moultrie (Pinopolis Dam) | 49.6 | 1260 |
| 104 | Sullivan's Island | 49.7 | 1263 |
Midlands
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 108 | Clarks Hill | 45.1 | 1144 |
| 113 | Columbia | 46.3 | 1176 |
| 106 | Florence | 42.9 | 1090 |
| 107 | Orangeburg | 47.0 | 1193 |
| 110 | Sumter | 46.9 | 1192 |
Upstate South Carolina
| Days | Place | Inches | Millimetres |
|---|---|---|---|
| 93 | Anderson | 48.4 | 1228 |
| 127 | Caesars Head State Park | 70.0 | 1779 |
| 102 | Calhoun Falls | 44.4 | 1129 |
| 114 | Greer | 47.2 | 1199 |
| – | Longcreek | 62.1 | 1576 |
| 104 | Ninety Nine Islands Reservoir | 46.0 | 1169 |
| 99 | Spartanburg | 48.4 | 1230 |
Reference
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.