| 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: | 68a - Cumberland Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 37887 - Wartburg, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 26 | 33 | 41 | 51 | 59 | 63 | 62 | 56 | 43 | 34 | 27 | 43 |
| Avg Max Temp (°F) | 44 | 49 | 58 | 68 | 75 | 82 | 86 | 85 | 79 | 69 | 58 | 48 | 67 |
| Avg Precip (In.) | 5.37 | 4.64 | 5.95 | 4.46 | 5.41 | 5 | 5.16 | 4.22 | 4.25 | 3.35 | 4.82 | 5.49 | 58.12 |