Ridgeway, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.3 °F (low) to 73.6 °F (high). Annual precipitation averages 45 Inches. Ridgeway is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.0 °F | 54.4 °F | 3.89 in. |
| February | 36.3 °F | 58.1 °F | 3.44 in. |
| March | 42.9 °F | 65.8 °F | 3.96 in. |
| April | 50.8 °F | 74.5 °F | 3.07 in. |
| May | 59.6 °F | 81.3 °F | 3.11 in. |
| June | 67.3 °F | 88.5 °F | 4.26 in. |
| July | 70.9 °F | 91.8 °F | 3.95 in. |
| August | 69.9 °F | 90.0 °F | 4.73 in. |
| September | 64.0 °F | 84.1 °F | 4.04 in. |
| October | 52.4 °F | 73.9 °F | 3.38 in. |
| November | 42.6 °F | 64.4 °F | 3.17 in. |
| December | 36.6 °F | 56.8 °F | 4.03 in. |
| Annual | 52.3 °F | 73.6 °F | 45.03 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |