| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Cfb - Oceanic Climate | |
| Ecoregion: | 66d - Southern Crystalline Ridges and Mountains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 28608 - Boone, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 23 | 31 | 38 | 47 | 55 | 59 | 58 | 52 | 40 | 32 | 25 | 40 |
| Avg Max Temp (°F) | 41 | 44 | 52 | 61 | 69 | 74 | 78 | 76 | 71 | 62 | 53 | 45 | 60 |
| Avg Precip (In.) | 4.9 | 4.44 | 5.99 | 5.27 | 5.96 | 5.75 | 5.32 | 5.1 | 5.1 | 4.6 | 5.3 | 4.04 | 61.78 |