Pelion, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.3 °C (low) to 24 °C (high). Annual precipitation averages 1252 Millimeters. Pelion is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.3 °C | 13.8 °C | 109.98 mm |
| February | 2.6 °C | 15.8 °C | 98.55 mm |
| March | 6.1 °C | 19.9 °C | 112.01 mm |
| April | 10.5 °C | 24.5 °C | 83.82 mm |
| May | 15.5 °C | 28.4 °C | 85.09 mm |
| June | 19.8 °C | 31.6 °C | 131.57 mm |
| July | 21.6 °C | 33.1 °C | 120.65 mm |
| August | 21.2 °C | 32.3 °C | 129.03 mm |
| September | 18 °C | 29.6 °C | 110.49 mm |
| October | 11.4 °C | 24.6 °C | 85.09 mm |
| November | 5.4 °C | 19.1 °C | 82.3 mm |
| December | 2.4 °C | 14.9 °C | 103.38 mm |
| Annual | 11.3 °C | 24 °C | 1251.96 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |