Ball Ground, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.9 °F (low) to 70.9 °F (high). Annual precipitation averages 55.3 Inches. Ball Ground is located in USDA Plant Hardiness Zone 8a. 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 | 30.4 °F | 50.6 °F | 5.2 in. |
| February | 33.4 °F | 54.9 °F | 4.9 in. |
| March | 39.3 °F | 63.1 °F | 5.26 in. |
| April | 46.7 °F | 71.8 °F | 4.43 in. |
| May | 56.1 °F | 78.9 °F | 4.07 in. |
| June | 64.1 °F | 85.2 °F | 4.4 in. |
| July | 67.9 °F | 88.2 °F | 4.8 in. |
| August | 67.0 °F | 87.7 °F | 4.5 in. |
| September | 60.6 °F | 82.5 °F | 4.38 in. |
| October | 48.9 °F | 72.7 °F | 3.88 in. |
| November | 38.3 °F | 61.9 °F | 4.42 in. |
| December | 33.5 °F | 53.3 °F | 5.06 in. |
| Annual | 48.9 °F | 70.9 °F | 55.3 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |