Ehrhardt, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.9 °C (low) to 24.7 °C (high). Annual precipitation averages 1246.9 Millimeters. Ehrhardt 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 | 2.2 °C | 15 °C | 97.28 mm |
| February | 3.5 °C | 17 °C | 93.47 mm |
| March | 6.7 °C | 20.9 °C | 97.79 mm |
| April | 10.9 °C | 25.1 °C | 81.79 mm |
| May | 15.7 °C | 28.8 °C | 88.39 mm |
| June | 19.9 °C | 31.9 °C | 139.95 mm |
| July | 21.8 °C | 33.4 °C | 139.7 mm |
| August | 21.4 °C | 32.3 °C | 144.02 mm |
| September | 18.6 °C | 29.8 °C | 114.55 mm |
| October | 12.3 °C | 25.3 °C | 83.82 mm |
| November | 6.4 °C | 20.2 °C | 71.12 mm |
| December | 3.4 °C | 16.2 °C | 95 mm |
| Annual | 11.9 °C | 24.7 °C | 1246.88 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 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 |