Valley Head, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.8 °C (low) to 21.2 °C (high). Annual precipitation averages 1458.7 Millimeters. Valley Head 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 | -1.6 °C | 9.6 °C | 140.97 mm |
| February | 0.2 °C | 12 °C | 135.38 mm |
| March | 3.4 °C | 16.6 °C | 138.94 mm |
| April | 7.5 °C | 21.6 °C | 127.76 mm |
| May | 12.8 °C | 25.7 °C | 116.59 mm |
| June | 17.2 °C | 29.6 °C | 114.3 mm |
| July | 19.1 °C | 30.9 °C | 116.59 mm |
| August | 18.6 °C | 30.8 °C | 88.9 mm |
| September | 15.3 °C | 28.1 °C | 120.14 mm |
| October | 9.1 °C | 22.6 °C | 95.5 mm |
| November | 3.2 °C | 16 °C | 118.62 mm |
| December | 0.4 °C | 11.3 °C | 145.03 mm |
| Annual | 8.8 °C | 21.2 °C | 1458.72 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |