| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate | |
| Ecoregion: | 45e - Northern Inner Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 27030 - Mount Airy, NC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 26 | 33 | 41 | 51 | 60 | 64 | 62 | 56 | 43 | 34 | 27 | 43 |
| Avg Max Temp (°F) | 46 | 50 | 59 | 68 | 76 | 83 | 87 | 85 | 79 | 70 | 59 | 49 | 68 |
| Avg Precip (In.) | 3.96 | 3.36 | 4.45 | 3.91 | 4.59 | 4.04 | 4.39 | 3.78 | 4.34 | 3.42 | 3.43 | 3.31 | 46.98 |