| 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 |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 67f - Southern Limestone/Dolomite Valleys and Low Rolling Hills |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 37752 - Harrogate, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 25 | 33 | 40 | 50 | 58 | 63 | 62 | 55 | 41 | 33 | 26 | 43 |
| Avg Max Temp (°F) | 44 | 49 | 59 | 68 | 75 | 83 | 86 | 85 | 80 | 69 | 58 | 48 | 67 |
| Avg Precip (In.) | 4.78 | 4.17 | 5.12 | 4.34 | 5.16 | 4.23 | 4.55 | 3.9 | 3.19 | 3.02 | 4.2 | 4.67 | 51.33 |