Beech Mountain, North Carolina has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 4.6 °C (low) to 14.1 °C (high). Annual precipitation averages 1430.8 Millimeters. Beech Mountain is located in USDA Plant Hardiness Zone 6b. 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 | -6 °C | 3.3 °C | 118.87 mm |
| February | -4.5 °C | 5 °C | 99.57 mm |
| March | -1.4 °C | 8.7 °C | 121.67 mm |
| April | 3.5 °C | 14.6 °C | 124.46 mm |
| May | 8.7 °C | 18.4 °C | 136.14 mm |
| June | 12.8 °C | 21.8 °C | 134.37 mm |
| July | 14.9 °C | 23.4 °C | 156.97 mm |
| August | 14.1 °C | 22.8 °C | 126.75 mm |
| September | 11.2 °C | 20.4 °C | 115.57 mm |
| October | 5.1 °C | 15.4 °C | 90.93 mm |
| November | 0.1 °C | 9.8 °C | 93.47 mm |
| December | -3.6 °C | 5.3 °C | 112.01 mm |
| Annual | 4.6 °C | 14.1 °C | 1430.78 mm |
| 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 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |