| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| 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: | 67f - Southern Limestone/Dolomite Valleys and Low Rolling Hills |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 37745 - Greeneville, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 32 | 39 | 49 | 57 | 62 | 60 | 54 | 41 | 32 | 25 | 41 |
| Avg Max Temp (°F) | 46 | 51 | 60 | 68 | 76 | 83 | 87 | 86 | 80 | 70 | 60 | 50 | 68 |
| Avg Precip (In.) | 3.72 | 3.47 | 4.28 | 3.7 | 4.54 | 4.16 | 4.7 | 3.77 | 3.26 | 2.39 | 3.04 | 3.47 | 44.49 |