Atlanta, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.6 °C (low) to 24.3 °C (high). Annual precipitation averages 1281.4 Millimeters. Atlanta 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 | 0.9 °C | 13.2 °C | 101.85 mm |
| February | 2.7 °C | 15.3 °C | 119.89 mm |
| March | 6.9 °C | 19.9 °C | 115.82 mm |
| April | 10.8 °C | 24.3 °C | 120.4 mm |
| May | 16.2 °C | 28.3 °C | 123.95 mm |
| June | 20.6 °C | 32.2 °C | 105.92 mm |
| July | 22.3 °C | 34.3 °C | 89.41 mm |
| August | 21.7 °C | 34.5 °C | 76.2 mm |
| September | 17.9 °C | 31.1 °C | 98.55 mm |
| October | 11.3 °C | 25.3 °C | 113.03 mm |
| November | 5.8 °C | 18.8 °C | 97.03 mm |
| December | 2.1 °C | 14.2 °C | 119.38 mm |
| Annual | 11.6 °C | 24.3 °C | 1281.43 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 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 |