| 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 7b: 5°F to 10°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: | 66j - Broad Basins |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 37317 - Copperhill, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 28 | 35 | 41 | 50 | 58 | 64 | 62 | 56 | 43 | 36 | 29 | 44 |
| Avg Max Temp (°F) | 49 | 53 | 61 | 70 | 77 | 84 | 87 | 86 | 81 | 72 | 62 | 52 | 70 |
| Avg Precip (In.) | 5.83 | 5.48 | 6.44 | 4.89 | 5.04 | 4.59 | 5.34 | 4.76 | 4.51 | 3.35 | 5.01 | 5.04 | 60.28 |