Southmont, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21.5 °C (high). Annual precipitation averages 1154.2 Millimeters. Southmont 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.8 °C | 10.3 °C | 91.69 mm |
| February | -0.4 °C | 12.6 °C | 77.72 mm |
| March | 3.2 °C | 16.7 °C | 103.89 mm |
| April | 8.3 °C | 22 °C | 98.81 mm |
| May | 13.5 °C | 25.8 °C | 87.12 mm |
| June | 18.1 °C | 29.7 °C | 107.95 mm |
| July | 20.3 °C | 31.4 °C | 109.73 mm |
| August | 19.4 °C | 30.5 °C | 111.76 mm |
| September | 15.8 °C | 27.4 °C | 107.44 mm |
| October | 8.8 °C | 22.3 °C | 83.06 mm |
| November | 2.8 °C | 16.7 °C | 84.33 mm |
| December | -0.3 °C | 12.1 °C | 90.68 mm |
| Annual | 9 °C | 21.5 °C | 1154.18 mm |
| 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 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |