| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°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. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 71i - Inner Nashville Basin |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 37034 - Chapel Hill, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 29 | 37 | 44 | 54 | 62 | 66 | 64 | 57 | 45 | 36 | 29 | 46 |
| Avg Max Temp (°F) | 47 | 52 | 61 | 70 | 78 | 85 | 89 | 88 | 82 | 72 | 60 | 50 | 70 |
| Avg Precip (In.) | 4.81 | 4.2 | 6.05 | 4.48 | 5.44 | 4.45 | 4.76 | 3.3 | 4.14 | 3.66 | 5.03 | 5.31 | 55.61 |