Lockhart, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.9 °C (low) to 23 °C (high). Annual precipitation averages 1109.7 Millimeters. Lockhart 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.6 °C | 12.3 °C | 98.3 mm |
| February | -0.2 °C | 14.4 °C | 86.61 mm |
| March | 2.9 °C | 18.6 °C | 104.65 mm |
| April | 7.7 °C | 23.8 °C | 91.44 mm |
| May | 13.2 °C | 27.4 °C | 84.07 mm |
| June | 18 °C | 31.2 °C | 102.36 mm |
| July | 20.2 °C | 32.9 °C | 84.33 mm |
| August | 19.6 °C | 32 °C | 101.85 mm |
| September | 15.9 °C | 28.8 °C | 90.42 mm |
| October | 8.7 °C | 23.3 °C | 79.76 mm |
| November | 2.4 °C | 17.7 °C | 85.6 mm |
| December | -0.3 °C | 13.6 °C | 100.33 mm |
| Annual | 8.9 °C | 23 °C | 1109.72 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 |