Sugar Mountain, North Carolina has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 40.2 °F (low) to 57.5 °F (high). Annual precipitation averages 60.5 Inches. Sugar 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 | 21.2 °F | 38.3 °F | 4.8 in. |
| February | 23.9 °F | 41.3 °F | 3.93 in. |
| March | 29.6 °F | 47.9 °F | 4.91 in. |
| April | 38.2 °F | 58.2 °F | 5.36 in. |
| May | 47.9 °F | 65.3 °F | 5.75 in. |
| June | 55.0 °F | 71.5 °F | 5.61 in. |
| July | 58.8 °F | 74.6 °F | 6.28 in. |
| August | 57.2 °F | 73.2 °F | 5.33 in. |
| September | 51.9 °F | 68.5 °F | 5.56 in. |
| October | 41.0 °F | 59.6 °F | 4.23 in. |
| November | 32.1 °F | 50.0 °F | 3.96 in. |
| December | 25.4 °F | 41.8 °F | 4.73 in. |
| Annual | 40.2 °F | 57.5 °F | 60.45 in. |
| 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 : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |