Red Bank, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.7 °F (low) to 75.1 °F (high). Annual precipitation averages 48.9 Inches. Red Bank is located in USDA Plant Hardiness Zone 8b. 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 | 34.4 °F | 56.5 °F | 4.04 in. |
| February | 36.8 °F | 60.1 °F | 3.76 in. |
| March | 43.2 °F | 67.5 °F | 4.24 in. |
| April | 51.3 °F | 75.9 °F | 3.26 in. |
| May | 60.3 °F | 83.0 °F | 3.49 in. |
| June | 68.3 °F | 89.0 °F | 4.99 in. |
| July | 71.4 °F | 92.1 °F | 4.95 in. |
| August | 70.6 °F | 90.4 °F | 4.87 in. |
| September | 64.9 °F | 85.5 °F | 4.01 in. |
| October | 53.1 °F | 76.2 °F | 3.65 in. |
| November | 42.0 °F | 66.2 °F | 3.54 in. |
| December | 36.5 °F | 58.7 °F | 4.1 in. |
| Annual | 52.7 °F | 75.1 °F | 48.9 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |