Dahlonega, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.2 °C (low) to 20.8 °C (high). Annual precipitation averages 1607.3 Millimeters. Dahlonega is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.8 °C | 10.2 °C | 154.18 mm |
| February | 0.7 °C | 12.3 °C | 139.95 mm |
| March | 3.9 °C | 16.5 °C | 144.78 mm |
| April | 8.2 °C | 21.2 °C | 126.75 mm |
| May | 12.9 °C | 25 °C | 116.08 mm |
| June | 17.4 °C | 28.5 °C | 125.22 mm |
| July | 19.2 °C | 30.1 °C | 137.41 mm |
| August | 18.8 °C | 29.6 °C | 134.37 mm |
| September | 15.6 °C | 26.8 °C | 119.63 mm |
| October | 9.4 °C | 21.8 °C | 118.87 mm |
| November | 3.8 °C | 16.2 °C | 131.57 mm |
| December | 0.8 °C | 11.7 °C | 158.5 mm |
| Annual | 9.2 °C | 20.8 °C | 1607.31 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |