| 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. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65e - Northern Hilly Gulf Coastal Plain |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 38351 - Lexington, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 30 | 38 | 46 | 56 | 65 | 69 | 67 | 61 | 47 | 39 | 31 | 48 |
| Avg Max Temp (°F) | 47 | 52 | 62 | 72 | 79 | 87 | 90 | 89 | 84 | 73 | 61 | 50 | 71 |
| Avg Precip (In.) | 4.1 | 3.94 | 5.38 | 4.57 | 5.66 | 4.13 | 4.51 | 2.8 | 3.65 | 3.41 | 4.54 | 4.78 | 51.47 |