Lefors, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.1 °C (low) to 22.4 °C (high). Annual precipitation averages 585.7 Millimeters. Lefors is located in USDA Plant Hardiness Zone 7a. 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 | -4.5 °C | 10.7 °C | 19.3 mm |
| February | -3.6 °C | 12.7 °C | 17.78 mm |
| March | 1.3 °C | 17.5 °C | 37.34 mm |
| April | 5.9 °C | 22.2 °C | 53.85 mm |
| May | 11.6 °C | 26.7 °C | 78.23 mm |
| June | 17.2 °C | 31.4 °C | 82.8 mm |
| July | 19.5 °C | 34.5 °C | 64.01 mm |
| August | 18.7 °C | 33.7 °C | 77.47 mm |
| September | 14.4 °C | 28.9 °C | 50.8 mm |
| October | 7.4 °C | 22.9 °C | 55.63 mm |
| November | 0.8 °C | 16.3 °C | 23.88 mm |
| December | -3.7 °C | 10.7 °C | 24.64 mm |
| Annual | 7.1 °C | 22.4 °C | 585.73 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |