| 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. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 67g - Southern Shale Valleys |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 37821 - Newport, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 28 | 35 | 43 | 52 | 61 | 65 | 64 | 57 | 44 | 35 | 28 | 45 |
| Avg Max Temp (°F) | 47 | 52 | 61 | 70 | 77 | 84 | 87 | 86 | 81 | 70 | 60 | 50 | 69 |
| Avg Precip (In.) | 3.81 | 3.62 | 4.45 | 3.7 | 4.8 | 4 | 4.54 | 3.77 | 3.2 | 2.32 | 3.22 | 3.75 | 45.18 |