Andrews, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.6 °C (low) to 24.3 °C (high). Annual precipitation averages 1324.4 Millimeters. Andrews is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.8 °C | 14.7 °C | 101.85 mm |
| February | 2.9 °C | 16.4 °C | 89.41 mm |
| March | 6.2 °C | 20.4 °C | 92.2 mm |
| April | 10.4 °C | 24.8 °C | 87.63 mm |
| May | 15.4 °C | 28.3 °C | 92.46 mm |
| June | 19.9 °C | 31.1 °C | 124.71 mm |
| July | 21.9 °C | 32.9 °C | 152.15 mm |
| August | 21.4 °C | 31.9 °C | 151.89 mm |
| September | 18.4 °C | 29.4 °C | 152.4 mm |
| October | 11.9 °C | 25 °C | 107.7 mm |
| November | 6 °C | 20.1 °C | 77.22 mm |
| December | 3.2 °C | 16.1 °C | 94.74 mm |
| Annual | 11.6 °C | 24.3 °C | 1324.36 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 |