Clarksville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.4 °F (low) to 69.3 °F (high). Annual precipitation averages 53.8 Inches. Clarksville 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.1 °F | 45.7 °F | 4.23 in. |
| February | 29.5 °F | 50.3 °F | 4.57 in. |
| March | 36.9 °F | 59.6 °F | 5.04 in. |
| April | 46.2 °F | 70.3 °F | 5.31 in. |
| May | 56.3 °F | 78.3 °F | 5.59 in. |
| June | 64.5 °F | 85.6 °F | 4.25 in. |
| July | 68.3 °F | 88.9 °F | 4.81 in. |
| August | 66.6 °F | 88.9 °F | 3.38 in. |
| September | 59.1 °F | 83.1 °F | 3.52 in. |
| October | 47.3 °F | 72.2 °F | 4.09 in. |
| November | 36.9 °F | 59.6 °F | 3.98 in. |
| December | 30.4 °F | 49.2 °F | 5.01 in. |
| Annual | 47.4 °F | 69.3 °F | 53.78 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| 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 |