Gladeville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.6 °C (low) to 21.1 °C (high). Annual precipitation averages 1384.8 Millimeters. Gladeville 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 | -2.5 °C | 8.4 °C | 111 mm |
| February | -1.1 °C | 10.9 °C | 121.16 mm |
| March | 2.7 °C | 15.9 °C | 127.25 mm |
| April | 7.7 °C | 21.6 °C | 127.25 mm |
| May | 13.4 °C | 26.1 °C | 129.54 mm |
| June | 18 °C | 30.2 °C | 121.16 mm |
| July | 20.3 °C | 31.9 °C | 130.56 mm |
| August | 19.4 °C | 31.6 °C | 97.28 mm |
| September | 15.2 °C | 28.5 °C | 102.11 mm |
| October | 8.3 °C | 22.4 °C | 91.19 mm |
| November | 2.4 °C | 15.6 °C | 96.77 mm |
| December | -0.4 °C | 10.2 °C | 129.54 mm |
| Annual | 8.6 °C | 21.1 °C | 1384.81 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 |