Lealman, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 18.8 °C (low) to 27.3 °C (high). Annual precipitation averages 1431 Millimeters. Lealman is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.2 °C | 20.8 °C | 84.33 mm |
| February | 12.9 °C | 22.3 °C | 66.04 mm |
| March | 15.1 °C | 24.2 °C | 78.74 mm |
| April | 18.3 °C | 27.1 °C | 69.6 mm |
| May | 21.3 °C | 29.9 °C | 75.69 mm |
| June | 23.9 °C | 31.6 °C | 208.03 mm |
| July | 24.5 °C | 31.9 °C | 228.6 mm |
| August | 24.7 °C | 32 °C | 244.09 mm |
| September | 23.7 °C | 31.4 °C | 188.21 mm |
| October | 20.5 °C | 28.8 °C | 70.87 mm |
| November | 16.1 °C | 25 °C | 48.77 mm |
| December | 13 °C | 22.3 °C | 68.07 mm |
| Annual | 18.8 °C | 27.3 °C | 1431.04 mm |
| Average First Frost Date | No Frost |
| Average Last Frost Date | |
| Average Days With Frost | Frost Free |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 10a : -1.1°C to 1.7°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |