Eva, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.3 °C (low) to 21.3 °C (high). Annual precipitation averages 1568.7 Millimeters. Eva 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 | -0.8 °C | 10 °C | 148.08 mm |
| February | 0.2 °C | 11.9 °C | 146.56 mm |
| March | 3.7 °C | 16.3 °C | 145.8 mm |
| April | 8.2 °C | 21.3 °C | 136.14 mm |
| May | 13.7 °C | 25.4 °C | 128.52 mm |
| June | 17.9 °C | 29.3 °C | 129.54 mm |
| July | 20.1 °C | 31.1 °C | 121.67 mm |
| August | 19.3 °C | 30.8 °C | 108.2 mm |
| September | 15.8 °C | 28.2 °C | 117.6 mm |
| October | 9.2 °C | 22.8 °C | 104.65 mm |
| November | 3.3 °C | 16.6 °C | 124.71 mm |
| December | 1.1 °C | 11.6 °C | 157.23 mm |
| Annual | 9.3 °C | 21.3 °C | 1568.7 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 |