Leoma, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 21.1 °C (high). Annual precipitation averages 1522.8 Millimeters. Leoma 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 | -2.2 °C | 9.2 °C | 130.56 mm |
| February | -0.7 °C | 11.6 °C | 138.43 mm |
| March | 3 °C | 16.4 °C | 147.32 mm |
| April | 7.7 °C | 21.8 °C | 134.87 mm |
| May | 13.2 °C | 25.6 °C | 135.64 mm |
| June | 17.3 °C | 29.2 °C | 125.22 mm |
| July | 19.5 °C | 31.2 °C | 129.29 mm |
| August | 18.8 °C | 30.9 °C | 107.7 mm |
| September | 15.1 °C | 28.2 °C | 108.71 mm |
| October | 8.4 °C | 22.3 °C | 103.89 mm |
| November | 2.9 °C | 15.9 °C | 102.62 mm |
| December | -0.5 °C | 10.4 °C | 158.5 mm |
| Annual | 8.5 °C | 21.1 °C | 1522.75 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |