Bransford, Tennessee has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 20.4 °C (high). Annual precipitation averages 1376.2 Millimeters. Bransford is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.7 °C | 7.6 °C | 108.46 mm |
| February | -1.2 °C | 10.3 °C | 119.13 mm |
| March | 2.7 °C | 15.2 °C | 125.98 mm |
| April | 7.6 °C | 20.8 °C | 125.98 mm |
| May | 13.2 °C | 25.2 °C | 141.99 mm |
| June | 17.8 °C | 29.3 °C | 110.74 mm |
| July | 19.8 °C | 31.2 °C | 126.49 mm |
| August | 19.2 °C | 30.8 °C | 101.85 mm |
| September | 15.2 °C | 27.8 °C | 97.79 mm |
| October | 8.4 °C | 21.8 °C | 93.47 mm |
| November | 2.5 °C | 14.9 °C | 98.04 mm |
| December | -0.6 °C | 9.7 °C | 126.24 mm |
| Annual | 8.5 °C | 20.4 °C | 1376.16 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |