Ridgeland, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.2 °F (low) to 77.2 °F (high). Annual precipitation averages 52.1 Inches. Ridgeland is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.6 °F | 60.7 °F | 3.8 in. |
| February | 40.4 °F | 64.1 °F | 3.52 in. |
| March | 46.4 °F | 70.9 °F | 3.47 in. |
| April | 53.5 °F | 77.8 °F | 3.56 in. |
| May | 61.9 °F | 84.4 °F | 3.29 in. |
| June | 68.9 °F | 89.5 °F | 5.75 in. |
| July | 72.1 °F | 92.0 °F | 6.06 in. |
| August | 71.7 °F | 90.4 °F | 6.91 in. |
| September | 67.1 °F | 85.9 °F | 5.32 in. |
| October | 56.6 °F | 78.3 °F | 3.66 in. |
| November | 46.1 °F | 69.2 °F | 2.91 in. |
| December | 40.5 °F | 62.8 °F | 3.83 in. |
| Annual | 55.2 °F | 77.2 °F | 52.08 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |