Ellerslie, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.3 °C (low) to 23.8 °C (high). Annual precipitation averages 1317 Millimeters. Ellerslie is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.4 °C | 13.7 °C | 120.4 mm |
| February | 3.1 °C | 16.1 °C | 122.17 mm |
| March | 6.3 °C | 20.2 °C | 131.32 mm |
| April | 10.1 °C | 23.9 °C | 108.46 mm |
| May | 15.2 °C | 28 °C | 87.38 mm |
| June | 19.2 °C | 31 °C | 113.54 mm |
| July | 21.1 °C | 32.4 °C | 131.57 mm |
| August | 20.7 °C | 31.9 °C | 102.11 mm |
| September | 17.7 °C | 29.4 °C | 95.5 mm |
| October | 11.5 °C | 24.6 °C | 76.45 mm |
| November | 5.8 °C | 19.2 °C | 98.04 mm |
| December | 2.9 °C | 14.9 °C | 130.05 mm |
| Annual | 11.3 °C | 23.8 °C | 1316.99 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |