Homer, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10 °C (low) to 22.1 °C (high). Annual precipitation averages 1351 Millimeters. Homer is located in USDA Plant Hardiness Zone 8a. 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 | -0.2 °C | 11.3 °C | 121.92 mm |
| February | 1.3 °C | 13.6 °C | 122.43 mm |
| March | 4.7 °C | 17.9 °C | 122.43 mm |
| April | 8.8 °C | 22.5 °C | 106.93 mm |
| May | 13.8 °C | 26.2 °C | 94.74 mm |
| June | 18.4 °C | 29.9 °C | 127 mm |
| July | 20.6 °C | 31.7 °C | 108.71 mm |
| August | 19.9 °C | 30.9 °C | 122.17 mm |
| September | 16.6 °C | 28.2 °C | 98.04 mm |
| October | 10.1 °C | 22.9 °C | 100.08 mm |
| November | 4.2 °C | 17.3 °C | 102.36 mm |
| December | 1.3 °C | 12.8 °C | 124.21 mm |
| Annual | 10 °C | 22.1 °C | 1351.02 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 8a : -12.2°C to -9.4°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 |