Lineville, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 22.5 °C (high). Annual precipitation averages 1470.9 Millimeters. Lineville is located in USDA Plant Hardiness Zone 8a. 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 | -0.2 °C | 11.9 °C | 141.48 mm |
| February | 1.3 °C | 14 °C | 135.38 mm |
| March | 4.4 °C | 18.4 °C | 144.02 mm |
| April | 8.6 °C | 22.8 °C | 124.71 mm |
| May | 13.6 °C | 26.5 °C | 117.86 mm |
| June | 17.8 °C | 29.9 °C | 117.86 mm |
| July | 19.9 °C | 31.6 °C | 117.86 mm |
| August | 19.6 °C | 31.2 °C | 113.03 mm |
| September | 16 °C | 28.5 °C | 101.09 mm |
| October | 9.7 °C | 23.7 °C | 86.36 mm |
| November | 4.2 °C | 17.8 °C | 123.7 mm |
| December | 1.3 °C | 13.3 °C | 147.57 mm |
| Annual | 9.7 °C | 22.5 °C | 1470.92 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |