Lydia, South Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.9 °C (low) to 23.6 °C (high). Annual precipitation averages 1212.3 Millimeters. Lydia is located in USDA Plant Hardiness Zone 8b. 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 | 0.7 °C | 13.1 °C | 92.46 mm |
| February | 1.8 °C | 15 °C | 86.87 mm |
| March | 5.2 °C | 19.2 °C | 89.41 mm |
| April | 10.1 °C | 24.2 °C | 78.23 mm |
| May | 15.1 °C | 28.2 °C | 95.25 mm |
| June | 19.7 °C | 31.5 °C | 115.82 mm |
| July | 21.5 °C | 33 °C | 136.65 mm |
| August | 20.8 °C | 32.1 °C | 133.6 mm |
| September | 17.7 °C | 29.3 °C | 125.73 mm |
| October | 11.2 °C | 24.2 °C | 87.12 mm |
| November | 5.1 °C | 18.8 °C | 74.42 mm |
| December | 2.2 °C | 14.4 °C | 96.77 mm |
| Annual | 10.9 °C | 23.6 °C | 1212.33 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°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 |