Jacksboro, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.1 °C (low) to 24.4 °C (high). Annual precipitation averages 867.7 Millimeters. Jacksboro is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.6 °C | 13.1 °C | 41.15 mm |
| February | 1.6 °C | 15.3 °C | 56.13 mm |
| March | 5.8 °C | 19.8 °C | 74.68 mm |
| April | 10.2 °C | 24.2 °C | 70.87 mm |
| May | 15.7 °C | 28.2 °C | 121.92 mm |
| June | 20.4 °C | 32.5 °C | 104.9 mm |
| July | 22.6 °C | 35.4 °C | 52.07 mm |
| August | 22.2 °C | 35.2 °C | 61.47 mm |
| September | 17.9 °C | 30.9 °C | 83.57 mm |
| October | 11.5 °C | 25.2 °C | 95.76 mm |
| November | 5.3 °C | 18.7 °C | 57.15 mm |
| December | 0.6 °C | 13.7 °C | 48.01 mm |
| Annual | 11.1 °C | 24.4 °C | 867.68 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |