Hayesville, North Carolina has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 6.8 °C (low) to 20.1 °C (high). Annual precipitation averages 1454.7 Millimeters. Hayesville is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.2 °C | 9.3 °C | 136.4 mm |
| February | -1.4 °C | 11.4 °C | 109.98 mm |
| March | 1.7 °C | 15.6 °C | 132.84 mm |
| April | 5.8 °C | 20.6 °C | 124.71 mm |
| May | 10.7 °C | 24.3 °C | 110.24 mm |
| June | 15.1 °C | 27.4 °C | 135.38 mm |
| July | 17.2 °C | 29.2 °C | 136.4 mm |
| August | 16.5 °C | 28.8 °C | 114.3 mm |
| September | 13.1 °C | 26.5 °C | 101.6 mm |
| October | 6.6 °C | 21.3 °C | 91.69 mm |
| November | 1.1 °C | 15.9 °C | 121.16 mm |
| December | -1.6 °C | 11.1 °C | 139.95 mm |
| Annual | 6.8 °C | 20.1 °C | 1454.65 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |