Milner, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.5 °F (low) to 73.7 °F (high). Annual precipitation averages 50.7 Inches. Milner 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 | 33.6 °F | 55.4 °F | 4.62 in. |
| February | 36.4 °F | 59.1 °F | 4.61 in. |
| March | 42.5 °F | 66.8 °F | 5.04 in. |
| April | 49.7 °F | 74.2 °F | 4.08 in. |
| May | 58.8 °F | 81.5 °F | 3.21 in. |
| June | 66.2 °F | 87.0 °F | 4.34 in. |
| July | 69.5 °F | 89.9 °F | 5.01 in. |
| August | 68.9 °F | 88.8 °F | 4.23 in. |
| September | 63.1 °F | 84.0 °F | 3.69 in. |
| October | 52.0 °F | 75.0 °F | 3.17 in. |
| November | 41.4 °F | 65.4 °F | 3.84 in. |
| December | 36.2 °F | 57.5 °F | 4.81 in. |
| Annual | 51.5 °F | 73.7 °F | 50.65 in. |
| 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 : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |