Mars Hill, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 44 °F (low) to 67.4 °F (high). Annual precipitation averages 41.7 Inches. Mars Hill is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.1 °F | 47.4 °F | 3.51 in. |
| February | 28.7 °F | 50.9 °F | 3.14 in. |
| March | 34.8 °F | 58.4 °F | 3.72 in. |
| April | 42.5 °F | 68.2 °F | 3.6 in. |
| May | 50.9 °F | 75.4 °F | 3.83 in. |
| June | 58.7 °F | 81.6 °F | 4.17 in. |
| July | 62.3 °F | 84.7 °F | 3.97 in. |
| August | 61.3 °F | 83.7 °F | 3.7 in. |
| September | 55.2 °F | 78.8 °F | 3.33 in. |
| October | 43.9 °F | 69.4 °F | 2.36 in. |
| November | 33.8 °F | 59.3 °F | 2.82 in. |
| December | 29.2 °F | 50.6 °F | 3.56 in. |
| Annual | 44 °F | 67.4 °F | 41.71 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |