Socastee, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.5 °C (low) to 23 °C (high). Annual precipitation averages 1400.3 Millimeters. Socastee is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.4 °C | 13.9 °C | 93.73 mm |
| February | 3.6 °C | 15.4 °C | 86.87 mm |
| March | 6.8 °C | 18.8 °C | 97.03 mm |
| April | 11.6 °C | 22.8 °C | 87.88 mm |
| May | 16.2 °C | 26.6 °C | 92.46 mm |
| June | 20.7 °C | 29.6 °C | 134.11 mm |
| July | 22.7 °C | 31.3 °C | 157.73 mm |
| August | 22.1 °C | 30.7 °C | 164.85 mm |
| September | 19.3 °C | 28.4 °C | 204.22 mm |
| October | 13.1 °C | 24.2 °C | 111 mm |
| November | 7 °C | 19.4 °C | 77.47 mm |
| December | 4 °C | 15.4 °C | 92.96 mm |
| Annual | 12.5 °C | 23 °C | 1400.31 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |