Lasana, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 18.2 °C (low) to 29.3 °C (high). Annual precipitation averages 670.8 Millimeters. Lasana is located in USDA Plant Hardiness Zone 10a.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.1 °C | 21.4 °C | 26.67 mm |
| February | 12.2 °C | 23.8 °C | 29.72 mm |
| March | 15.2 °C | 26.5 °C | 34.29 mm |
| April | 18.5 °C | 29.6 °C | 37.34 mm |
| May | 21.9 °C | 32.2 °C | 60.2 mm |
| June | 24.1 °C | 34.6 °C | 69.09 mm |
| July | 24.6 °C | 35.2 °C | 60.71 mm |
| August | 24.5 °C | 35.8 °C | 51.82 mm |
| September | 22.8 °C | 33.2 °C | 139.95 mm |
| October | 18.9 °C | 30.6 °C | 84.07 mm |
| November | 14.3 °C | 25.9 °C | 42.16 mm |
| December | 10.8 °C | 22.2 °C | 34.8 mm |
| Annual | 18.2 °C | 29.3 °C | 670.82 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 10a : -1.1°C to 1.7°C |
| Plant Hardiness Zone - 2012 | Zone 9b : -3.9°C to -1.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |