Mayodan, North Carolina has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.9 °C (low) to 21 °C (high). Annual precipitation averages 1195.6 Millimeters. Mayodan 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 | -2.8 °C | 9.6 °C | 96.27 mm |
| February | -1.6 °C | 11.7 °C | 75.44 mm |
| March | 2.1 °C | 15.9 °C | 105.41 mm |
| April | 7.1 °C | 21.6 °C | 99.06 mm |
| May | 12.3 °C | 25.5 °C | 106.68 mm |
| June | 17 °C | 29.4 °C | 109.47 mm |
| July | 19.5 °C | 31.6 °C | 113.54 mm |
| August | 18.6 °C | 30.3 °C | 108.46 mm |
| September | 14.7 °C | 27 °C | 119.13 mm |
| October | 7.6 °C | 21.8 °C | 86.61 mm |
| November | 1.5 °C | 16 °C | 80.77 mm |
| December | -1.2 °C | 11.2 °C | 94.74 mm |
| Annual | 7.9 °C | 21 °C | 1195.58 mm |
| 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 : -15°C to -12.2°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 |