White Deer, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.4 °C (low) to 21.8 °C (high). Annual precipitation averages 540.8 Millimeters. White Deer is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 10.1 °C | 17.78 mm |
| February | -3.4 °C | 12.2 °C | 13.21 mm |
| March | 0.7 °C | 17.2 °C | 33.02 mm |
| April | 5.1 °C | 21.7 °C | 45.72 mm |
| May | 10.8 °C | 26.3 °C | 67.82 mm |
| June | 16.3 °C | 31.4 °C | 78.23 mm |
| July | 18.5 °C | 33.6 °C | 65.79 mm |
| August | 17.8 °C | 32.7 °C | 80.01 mm |
| September | 13.6 °C | 28.4 °C | 47.5 mm |
| October | 6.9 °C | 22.5 °C | 49.02 mm |
| November | 0.1 °C | 15.7 °C | 21.08 mm |
| December | -4.4 °C | 10.2 °C | 21.59 mm |
| Annual | 6.4 °C | 21.8 °C | 540.77 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 |