Milan, Georgia has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.6 °F (low) to 77.4 °F (high). Annual precipitation averages 47.7 Inches. Milan 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 | 37.4 °F | 59.9 °F | 4.5 in. |
| February | 40.1 °F | 63.7 °F | 4.06 in. |
| March | 45.8 °F | 70.5 °F | 4.57 in. |
| April | 53.1 °F | 77.8 °F | 3.48 in. |
| May | 61.6 °F | 85.1 °F | 2.77 in. |
| June | 69.1 °F | 89.9 °F | 4.86 in. |
| July | 71.9 °F | 92.4 °F | 4.67 in. |
| August | 71.2 °F | 91.3 °F | 5.02 in. |
| September | 66.0 °F | 87.0 °F | 3.95 in. |
| October | 55.1 °F | 78.9 °F | 2.83 in. |
| November | 44.7 °F | 69.6 °F | 2.88 in. |
| December | 39.4 °F | 62.3 °F | 4.06 in. |
| Annual | 54.6 °F | 77.4 °F | 47.65 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |