Milledgeville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.8 °F (low) to 71.2 °F (high). Annual precipitation averages 55.3 Inches. Milledgeville is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 29.0 °F | 48.9 °F | 4.77 in. |
| February | 32.3 °F | 53.8 °F | 5.0 in. |
| March | 39.3 °F | 62.8 °F | 5.42 in. |
| April | 47.7 °F | 72.4 °F | 5.44 in. |
| May | 57.7 °F | 79.7 °F | 5.55 in. |
| June | 65.7 °F | 86.7 °F | 3.99 in. |
| July | 69.1 °F | 89.7 °F | 4.21 in. |
| August | 67.4 °F | 89.4 °F | 3.87 in. |
| September | 60.4 °F | 84.1 °F | 3.92 in. |
| October | 47.9 °F | 73.7 °F | 3.79 in. |
| November | 37.4 °F | 61.6 °F | 4.08 in. |
| December | 32.0 °F | 51.7 °F | 5.25 in. |
| Annual | 48.8 °F | 71.2 °F | 55.29 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |