Six Mile, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.4 °C (low) to 22.3 °C (high). Annual precipitation averages 1443.5 Millimeters. Six Mile 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 | -1.1 °C | 11.5 °C | 133.1 mm |
| February | 0.4 °C | 13.7 °C | 117.35 mm |
| March | 3.9 °C | 17.8 °C | 128.52 mm |
| April | 8.4 °C | 22.7 °C | 116.08 mm |
| May | 13.4 °C | 26.6 °C | 100.84 mm |
| June | 18.1 °C | 30.2 °C | 120.9 mm |
| July | 20 °C | 32.1 °C | 122.17 mm |
| August | 19.6 °C | 31.2 °C | 142.24 mm |
| September | 16.2 °C | 28.3 °C | 109.73 mm |
| October | 9.3 °C | 22.9 °C | 104.14 mm |
| November | 3.4 °C | 17.3 °C | 108.71 mm |
| December | 0.6 °C | 12.8 °C | 139.7 mm |
| Annual | 9.4 °C | 22.3 °C | 1443.48 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 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |