Sparks, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.7 °F (low) to 78.2 °F (high). Annual precipitation averages 50 Inches. Sparks is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 39.0 °F | 61.6 °F | 4.61 in. |
| February | 42.0 °F | 65.3 °F | 4.08 in. |
| March | 47.4 °F | 72.0 °F | 5.15 in. |
| April | 54.0 °F | 78.7 °F | 3.38 in. |
| May | 62.1 °F | 85.6 °F | 2.7 in. |
| June | 69.4 °F | 90.1 °F | 5.59 in. |
| July | 71.6 °F | 91.7 °F | 5.34 in. |
| August | 71.4 °F | 91.0 °F | 5.72 in. |
| September | 67.0 °F | 87.6 °F | 4.14 in. |
| October | 56.9 °F | 80.2 °F | 3.05 in. |
| November | 46.3 °F | 70.9 °F | 2.45 in. |
| December | 41.5 °F | 64.1 °F | 3.82 in. |
| Annual | 55.7 °F | 78.2 °F | 50.03 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |