Vanleer, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.7 °C (low) to 20.4 °C (high). Annual precipitation averages 1389.6 Millimeters. Vanleer 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.3 °C | 8.2 °C | 114.05 mm |
| February | -0.8 °C | 10.6 °C | 124.46 mm |
| March | 3.4 °C | 15.8 °C | 134.37 mm |
| April | 8.1 °C | 21.4 °C | 128.52 mm |
| May | 13.4 °C | 25.2 °C | 151.13 mm |
| June | 17.7 °C | 28.8 °C | 100.33 mm |
| July | 19.6 °C | 30.5 °C | 117.6 mm |
| August | 18.8 °C | 30.4 °C | 89.66 mm |
| September | 15.1 °C | 27.4 °C | 98.55 mm |
| October | 8.9 °C | 21.6 °C | 103.12 mm |
| November | 3.3 °C | 15.2 °C | 98.55 mm |
| December | -0.3 °C | 9.4 °C | 129.29 mm |
| Annual | 8.7 °C | 20.4 °C | 1389.63 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |