Alexandria, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.1 °F (low) to 69.7 °F (high). Annual precipitation averages 56.3 Inches. Alexandria 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.5 °F | 47.2 °F | 4.85 in. |
| February | 30.1 °F | 51.6 °F | 4.99 in. |
| March | 36.9 °F | 60.4 °F | 5.24 in. |
| April | 45.5 °F | 70.4 °F | 4.8 in. |
| May | 55.4 °F | 78.4 °F | 4.98 in. |
| June | 63.7 °F | 85.7 °F | 5.14 in. |
| July | 67.7 °F | 88.8 °F | 5.36 in. |
| August | 65.8 °F | 88.2 °F | 3.91 in. |
| September | 58.6 °F | 83.0 °F | 3.93 in. |
| October | 46.6 °F | 72.3 °F | 3.48 in. |
| November | 36.2 °F | 60.3 °F | 3.79 in. |
| December | 30.9 °F | 50.6 °F | 5.87 in. |
| Annual | 47.1 °F | 69.7 °F | 56.34 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| 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 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |