| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5a: -20°F to -15°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 66g - Southern Metasedimentary Mountains |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 37738 - Gatlinburg, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 26 | 33 | 39 | 49 | 57 | 61 | 60 | 54 | 41 | 33 | 27 | 42 |
| Avg Max Temp (°F) | 47 | 52 | 60 | 69 | 75 | 82 | 84 | 83 | 78 | 69 | 60 | 50 | 67 |
| Avg Precip (In.) | 4.23 | 3.76 | 4.81 | 4.33 | 5.48 | 5.3 | 5.54 | 4.25 | 4.14 | 2.93 | 3.96 | 3.93 | 52.65 |