Cornersville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.8 °F (low) to 70.1 °F (high). Annual precipitation averages 59.8 Inches. Cornersville 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 | 28.7 °F | 47.9 °F | 5.07 in. |
| February | 31.4 °F | 52.5 °F | 5.35 in. |
| March | 38.4 °F | 61.3 °F | 5.82 in. |
| April | 46.5 °F | 70.7 °F | 5.27 in. |
| May | 56.0 °F | 78.6 °F | 4.89 in. |
| June | 63.9 °F | 85.9 °F | 5.22 in. |
| July | 67.6 °F | 88.7 °F | 4.77 in. |
| August | 66.1 °F | 88.6 °F | 4.56 in. |
| September | 59.3 °F | 83.4 °F | 4.58 in. |
| October | 47.6 °F | 72.5 °F | 3.76 in. |
| November | 36.9 °F | 60.6 °F | 4.22 in. |
| December | 31.5 °F | 50.7 °F | 6.26 in. |
| Annual | 47.8 °F | 70.1 °F | 59.77 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 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |