Powdersville, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.1 °C (low) to 22 °C (high). Annual precipitation averages 1325.1 Millimeters. Powdersville 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 | -0.2 °C | 11.2 °C | 114.81 mm |
| February | 1.2 °C | 13.4 °C | 104.14 mm |
| March | 4.8 °C | 17.6 °C | 119.89 mm |
| April | 9.2 °C | 22.4 °C | 110.24 mm |
| May | 14.2 °C | 26.3 °C | 95.76 mm |
| June | 18.7 °C | 29.9 °C | 111.51 mm |
| July | 20.6 °C | 32 °C | 113.28 mm |
| August | 20.2 °C | 31 °C | 130.05 mm |
| September | 16.9 °C | 27.9 °C | 98.81 mm |
| October | 10.3 °C | 22.6 °C | 98.04 mm |
| November | 4.3 °C | 17 °C | 102.87 mm |
| December | 1.4 °C | 12.5 °C | 125.73 mm |
| Annual | 10.1 °C | 22 °C | 1325.13 mm |
| 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 : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |