Waynesboro, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 52.7 °F (low) to 76.3 °F (high). Annual precipitation averages 45.8 Inches. Waynesboro 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. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.7 °F | 58.2 °F | 4.17 in. |
| February | 37.4 °F | 61.9 °F | 4.14 in. |
| March | 43.6 °F | 69.2 °F | 4.08 in. |
| April | 50.7 °F | 76.8 °F | 3.22 in. |
| May | 59.7 °F | 84.0 °F | 2.95 in. |
| June | 67.8 °F | 89.7 °F | 4.74 in. |
| July | 70.9 °F | 92.4 °F | 4.85 in. |
| August | 70.2 °F | 90.8 °F | 4.33 in. |
| September | 64.8 °F | 86.3 °F | 3.46 in. |
| October | 53.1 °F | 77.6 °F | 2.84 in. |
| November | 41.9 °F | 67.7 °F | 2.8 in. |
| December | 37.1 °F | 60.4 °F | 4.26 in. |
| Annual | 52.7 °F | 76.3 °F | 45.84 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |