Lavonia, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 50.6 °F (low) to 72.2 °F (high). Annual precipitation averages 52.5 Inches. Lavonia 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.3 °F | 53.0 °F | 4.78 in. |
| February | 35.0 °F | 56.9 °F | 4.57 in. |
| March | 41.1 °F | 64.3 °F | 4.86 in. |
| April | 48.8 °F | 72.8 °F | 4.03 in. |
| May | 57.7 °F | 79.9 °F | 4.01 in. |
| June | 65.8 °F | 86.6 °F | 4.53 in. |
| July | 69.3 °F | 89.7 °F | 4.18 in. |
| August | 68.4 °F | 88.1 °F | 4.72 in. |
| September | 62.7 °F | 82.9 °F | 3.93 in. |
| October | 50.9 °F | 73.5 °F | 3.9 in. |
| November | 40.2 °F | 63.6 °F | 3.95 in. |
| December | 35.0 °F | 55.4 °F | 5.02 in. |
| Annual | 50.6 °F | 72.2 °F | 52.48 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |