Trezevant, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9 °C (low) to 21 °C (high). Annual precipitation averages 1399.3 Millimeters. Trezevant 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 | -2.3 °C | 8.3 °C | 105.92 mm |
| February | -0.7 °C | 10.8 °C | 116.33 mm |
| March | 3.6 °C | 16 °C | 135.64 mm |
| April | 8.7 °C | 21.6 °C | 130.56 mm |
| May | 14.1 °C | 25.9 °C | 150.37 mm |
| June | 18.6 °C | 29.9 °C | 112.27 mm |
| July | 20.4 °C | 31.7 °C | 109.47 mm |
| August | 19.4 °C | 31.6 °C | 89.92 mm |
| September | 15.3 °C | 28.3 °C | 99.82 mm |
| October | 8.6 °C | 22.4 °C | 96.01 mm |
| November | 3.2 °C | 15.6 °C | 118.36 mm |
| December | -0.6 °C | 9.9 °C | 134.62 mm |
| Annual | 9 °C | 21 °C | 1399.29 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |