| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| 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 28607 - Boone, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 23 | 31 | 39 | 48 | 55 | 59 | 58 | 52 | 40 | 32 | 25 | 40 |
| Avg Max Temp (°F) | 41 | 44 | 53 | 62 | 69 | 75 | 78 | 77 | 71 | 63 | 53 | 45 | 61 |
| Avg Precip (In.) | 4.43 | 4.23 | 5.56 | 4.9 | 5.53 | 5.39 | 4.86 | 4.57 | 4.79 | 4.48 | 5.02 | 3.71 | 57.46 |