Mint Hill, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.7 °C (low) to 21.9 °C (high). Annual precipitation averages 1160.5 Millimeters. Mint Hill is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.3 °C | 11 °C | 94.49 mm |
| February | 1.6 °C | 13.1 °C | 80.52 mm |
| March | 5.4 °C | 17.2 °C | 104.9 mm |
| April | 10.2 °C | 22.2 °C | 95.76 mm |
| May | 15.1 °C | 26.2 °C | 85.85 mm |
| June | 19.5 °C | 30 °C | 108.97 mm |
| July | 21.4 °C | 31.9 °C | 105.92 mm |
| August | 20.7 °C | 30.9 °C | 114.05 mm |
| September | 17.6 °C | 27.9 °C | 107.7 mm |
| October | 10.9 °C | 22.6 °C | 86.61 mm |
| November | 4.8 °C | 17 °C | 82.8 mm |
| December | 1.6 °C | 12.5 °C | 92.96 mm |
| Annual | 10.7 °C | 21.9 °C | 1160.53 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |