Braselton, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.4 °C (low) to 22.1 °C (high). Annual precipitation averages 1317.5 Millimeters. Braselton 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.3 °C | 11.4 °C | 122.43 mm |
| February | 1.8 °C | 13.4 °C | 115.57 mm |
| March | 5.2 °C | 17.9 °C | 124.97 mm |
| April | 9.4 °C | 22.5 °C | 101.35 mm |
| May | 14.3 °C | 26.3 °C | 92.2 mm |
| June | 18.8 °C | 29.9 °C | 114.05 mm |
| July | 20.7 °C | 31.7 °C | 113.79 mm |
| August | 20.3 °C | 31 °C | 121.16 mm |
| September | 16.9 °C | 28.1 °C | 102.87 mm |
| October | 10.6 °C | 22.9 °C | 91.19 mm |
| November | 4.7 °C | 17.3 °C | 100.58 mm |
| December | 1.8 °C | 12.7 °C | 117.35 mm |
| Annual | 10.4 °C | 22.1 °C | 1317.51 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |