New Tazewell, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.9 °C (low) to 19.9 °C (high). Annual precipitation averages 1370.6 Millimeters. New Tazewell is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.9 °C | 7.6 °C | 120.9 mm |
| February | -1.2 °C | 10 °C | 124.46 mm |
| March | 2.1 °C | 15.1 °C | 130.56 mm |
| April | 7 °C | 20.9 °C | 129.54 mm |
| May | 12.2 °C | 24.8 °C | 111 mm |
| June | 16.6 °C | 28.2 °C | 125.22 mm |
| July | 18.8 °C | 29.9 °C | 129.03 mm |
| August | 18.2 °C | 29.5 °C | 93.98 mm |
| September | 14.4 °C | 27.2 °C | 94.23 mm |
| October | 8.1 °C | 21.3 °C | 75.18 mm |
| November | 2.2 °C | 14.6 °C | 99.57 mm |
| December | -1 °C | 9.2 °C | 136.91 mm |
| Annual | 7.9 °C | 19.9 °C | 1370.58 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |