Milton, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.4 °F (low) to 70.2 °F (high). Annual precipitation averages 46.6 Inches. Milton 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 | 27.1 °F | 49.1 °F | 3.6 in. |
| February | 28.7 °F | 52.6 °F | 2.87 in. |
| March | 35.5 °F | 61.1 °F | 4.1 in. |
| April | 45.0 °F | 71.4 °F | 3.96 in. |
| May | 54.3 °F | 78.3 °F | 4.19 in. |
| June | 62.9 °F | 85.7 °F | 4.32 in. |
| July | 67.3 °F | 89.2 °F | 4.47 in. |
| August | 65.8 °F | 87.9 °F | 3.82 in. |
| September | 59.2 °F | 81.9 °F | 4.71 in. |
| October | 46.0 °F | 71.5 °F | 3.52 in. |
| November | 34.9 °F | 61.3 °F | 3.44 in. |
| December | 29.8 °F | 52.1 °F | 3.57 in. |
| Annual | 46.4 °F | 70.2 °F | 46.57 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |