Kingston, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.7 °C (low) to 21 °C (high). Annual precipitation averages 1466.6 Millimeters. Kingston 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.1 °C | 8.7 °C | 133.86 mm |
| February | -0.6 °C | 11.2 °C | 141.22 mm |
| March | 3 °C | 16.3 °C | 137.41 mm |
| April | 7.6 °C | 21.6 °C | 133.1 mm |
| May | 13.1 °C | 26 °C | 109.47 mm |
| June | 17.7 °C | 29.6 °C | 116.59 mm |
| July | 19.9 °C | 31.1 °C | 148.84 mm |
| August | 19.1 °C | 30.9 °C | 91.69 mm |
| September | 15.7 °C | 28.3 °C | 107.44 mm |
| October | 8.7 °C | 22.2 °C | 82.8 mm |
| November | 2.7 °C | 15.7 °C | 111.76 mm |
| December | -0.2 °C | 10.4 °C | 152.4 mm |
| Annual | 8.7 °C | 21 °C | 1466.58 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |