Boone, North Carolina has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 41.8 °F (low) to 61.4 °F (high). Annual precipitation averages 58.7 Inches. Boone is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.8 °F | 41.8 °F | 4.84 in. |
| February | 26.4 °F | 44.9 °F | 3.86 in. |
| March | 31.4 °F | 51.7 °F | 4.97 in. |
| April | 40.2 °F | 62.0 °F | 5.56 in. |
| May | 49.1 °F | 69.4 °F | 5.16 in. |
| June | 56.9 °F | 76.2 °F | 5.08 in. |
| July | 60.5 °F | 79.0 °F | 5.59 in. |
| August | 59.1 °F | 77.4 °F | 5.07 in. |
| September | 52.6 °F | 72.4 °F | 5.29 in. |
| October | 42.1 °F | 63.3 °F | 4.3 in. |
| November | 32.2 °F | 53.4 °F | 4.36 in. |
| December | 27.4 °F | 45.2 °F | 4.59 in. |
| Annual | 41.8 °F | 61.4 °F | 58.67 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfb - Temperate Oceanic Climate |