Jacksboro, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8 °C (low) to 20.3 °C (high). Annual precipitation averages 1464.1 Millimeters. Jacksboro 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 | -2.8 °C | 8 °C | 133.35 mm |
| February | -1.2 °C | 10.6 °C | 132.33 mm |
| March | 2.2 °C | 15.6 °C | 142.49 mm |
| April | 7 °C | 20.9 °C | 129.54 mm |
| May | 12.5 °C | 25.5 °C | 110.49 mm |
| June | 16.9 °C | 29 °C | 122.68 mm |
| July | 19.2 °C | 30.4 °C | 153.42 mm |
| August | 18.4 °C | 30.1 °C | 100.08 mm |
| September | 14.7 °C | 27.5 °C | 104.9 mm |
| October | 7.8 °C | 21.6 °C | 80.01 mm |
| November | 1.7 °C | 15 °C | 107.44 mm |
| December | -0.8 °C | 9.8 °C | 147.32 mm |
| Annual | 8 °C | 20.3 °C | 1464.05 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 | Cfa - Humid Subtropical Climate |