Dover, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.6 °F (low) to 69.1 °F (high). Annual precipitation averages 54.4 Inches. Dover is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.7 °F | 45.9 °F | 4.13 in. |
| February | 29.5 °F | 50.8 °F | 4.51 in. |
| March | 37.9 °F | 60.2 °F | 5.06 in. |
| April | 47.0 °F | 70.6 °F | 5.24 in. |
| May | 56.6 °F | 77.9 °F | 5.82 in. |
| June | 65.2 °F | 85.1 °F | 4.69 in. |
| July | 68.3 °F | 88.6 °F | 4.35 in. |
| August | 66.1 °F | 88.4 °F | 3.52 in. |
| September | 58.6 °F | 82.3 °F | 3.72 in. |
| October | 46.8 °F | 71.3 °F | 4.06 in. |
| November | 37.3 °F | 59.7 °F | 4.23 in. |
| December | 30.3 °F | 48.9 °F | 5.11 in. |
| Annual | 47.6 °F | 69.1 °F | 54.44 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |