| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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 | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 37620 - Bristol, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 25 | 33 | 40 | 49 | 58 | 62 | 60 | 54 | 41 | 33 | 26 | 42 |
| Avg Max Temp (°F) | 44 | 49 | 58 | 67 | 75 | 82 | 85 | 84 | 79 | 68 | 58 | 48 | 66 |
| Avg Precip (In.) | 3.73 | 3.55 | 4.11 | 3.56 | 4.61 | 4.14 | 4.5 | 3.54 | 3.27 | 2.54 | 3.14 | 3.45 | 44.15 |