Leroy, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 11.6 °C (low) to 25.2 °C (high). Annual precipitation averages 1540 Millimeters. Leroy is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.9 °C | 15.4 °C | 138.43 mm |
| February | 3.7 °C | 17.7 °C | 134.62 mm |
| March | 6.8 °C | 21.8 °C | 140.21 mm |
| April | 10.4 °C | 25.4 °C | 116.33 mm |
| May | 15.6 °C | 29.4 °C | 109.47 mm |
| June | 19.7 °C | 32.1 °C | 153.67 mm |
| July | 21.4 °C | 33.1 °C | 152.65 mm |
| August | 21.2 °C | 32.9 °C | 129.29 mm |
| September | 18.4 °C | 30.8 °C | 107.95 mm |
| October | 11.6 °C | 26.2 °C | 92.71 mm |
| November | 5.8 °C | 20.7 °C | 114.81 mm |
| December | 3.1 °C | 16.6 °C | 149.86 mm |
| Annual | 11.6 °C | 25.2 °C | 1540 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |