Wartburg, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.8 °F (low) to 67.8 °F (high). Annual precipitation averages 59 Inches. Wartburg is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.8 °F | 45.9 °F | 5.09 in. |
| February | 29.6 °F | 50.4 °F | 5.14 in. |
| March | 36.0 °F | 59.1 °F | 5.37 in. |
| April | 44.3 °F | 68.8 °F | 5.34 in. |
| May | 53.6 °F | 76.6 °F | 4.93 in. |
| June | 61.3 °F | 82.9 °F | 4.97 in. |
| July | 65.4 °F | 85.7 °F | 5.93 in. |
| August | 64.0 °F | 85.3 °F | 4.35 in. |
| September | 57.6 °F | 80.5 °F | 4.24 in. |
| October | 45.7 °F | 70.2 °F | 3.32 in. |
| November | 35.5 °F | 58.5 °F | 4.3 in. |
| December | 30.3 °F | 49.1 °F | 6.01 in. |
| Annual | 45.8 °F | 67.8 °F | 58.99 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |