Sevierville, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.6 °C (low) to 21.3 °C (high). Annual precipitation averages 1251.2 Millimeters. Sevierville 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 | -2.1 °C | 8.8 °C | 109.47 mm |
| February | -0.6 °C | 11.3 °C | 106.93 mm |
| March | 2.9 °C | 16.3 °C | 115.57 mm |
| April | 7.6 °C | 21.6 °C | 102.87 mm |
| May | 13.1 °C | 26.3 °C | 101.35 mm |
| June | 17.6 °C | 30.1 °C | 115.32 mm |
| July | 19.7 °C | 31.6 °C | 134.62 mm |
| August | 19.1 °C | 31.3 °C | 83.31 mm |
| September | 15.5 °C | 28.5 °C | 84.58 mm |
| October | 8.5 °C | 22.8 °C | 71.63 mm |
| November | 2.1 °C | 15.8 °C | 90.17 mm |
| December | -0.4 °C | 10.8 °C | 135.38 mm |
| Annual | 8.6 °C | 21.3 °C | 1251.2 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |