Lyons, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.9 °F (low) to 77.7 °F (high). Annual precipitation averages 47.8 Inches. Lyons is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.4 °F | 60.6 °F | 4.21 in. |
| February | 40.3 °F | 64.3 °F | 3.95 in. |
| March | 46.0 °F | 70.9 °F | 4.17 in. |
| April | 53.1 °F | 78.1 °F | 3.35 in. |
| May | 61.7 °F | 85.4 °F | 3.04 in. |
| June | 69.3 °F | 90.3 °F | 5.11 in. |
| July | 71.9 °F | 92.5 °F | 4.95 in. |
| August | 71.7 °F | 91.5 °F | 5.72 in. |
| September | 66.6 °F | 87.0 °F | 3.79 in. |
| October | 55.7 °F | 79.1 °F | 2.84 in. |
| November | 45.1 °F | 70.0 °F | 2.71 in. |
| December | 39.9 °F | 62.8 °F | 3.97 in. |
| Annual | 54.9 °F | 77.7 °F | 47.81 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |