Damascus, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.7 °C (low) to 25.5 °C (high). Annual precipitation averages 1383 Millimeters. Damascus is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.1 °C | 16.3 °C | 125.48 mm |
| February | 4.8 °C | 18.2 °C | 123.95 mm |
| March | 7.9 °C | 22.2 °C | 134.87 mm |
| April | 11.7 °C | 25.7 °C | 111.25 mm |
| May | 16.6 °C | 29.7 °C | 75.18 mm |
| June | 20.8 °C | 32.3 °C | 136.91 mm |
| July | 21.9 °C | 33.1 °C | 143 mm |
| August | 21.6 °C | 32.7 °C | 137.41 mm |
| September | 19 °C | 30.8 °C | 111.51 mm |
| October | 13.1 °C | 26.7 °C | 69.34 mm |
| November | 7 °C | 21.4 °C | 89.15 mm |
| December | 4.3 °C | 17.4 °C | 124.97 mm |
| Annual | 12.7 °C | 25.5 °C | 1383.02 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |