Elizabethton, Tennessee has a Temperate Oceanic Climate climate (Köppen classification: Cfb). Average annual temperatures range from 7.5 °C (low) to 20 °C (high). Annual precipitation averages 1162.1 Millimeters. Elizabethton 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 | -3 °C | 7.9 °C | 90.93 mm |
| February | -1.6 °C | 10.2 °C | 94.49 mm |
| March | 1.9 °C | 15 °C | 99.06 mm |
| April | 6.6 °C | 20.6 °C | 104.14 mm |
| May | 11.7 °C | 24.9 °C | 100.84 mm |
| June | 16.2 °C | 28.4 °C | 115.06 mm |
| July | 18.3 °C | 29.9 °C | 138.68 mm |
| August | 17.6 °C | 29.6 °C | 99.06 mm |
| September | 14.2 °C | 27 °C | 69.09 mm |
| October | 7.6 °C | 21.3 °C | 68.33 mm |
| November | 1.6 °C | 14.9 °C | 78.23 mm |
| December | -1.2 °C | 9.7 °C | 104.14 mm |
| Annual | 7.5 °C | 20 °C | 1162.05 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 | Cfb - Temperate Oceanic Climate |