Double Oak, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 12.8 °C (low) to 24.6 °C (high). Annual precipitation averages 968.8 Millimeters. Double Oak 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 | 1.3 °C | 13.3 °C | 62.48 mm |
| February | 3.2 °C | 15.4 °C | 68.33 mm |
| March | 7.7 °C | 19.7 °C | 83.57 mm |
| April | 12 °C | 24.2 °C | 87.38 mm |
| May | 17.3 °C | 28.4 °C | 117.6 mm |
| June | 21.9 °C | 32.9 °C | 97.03 mm |
| July | 23.9 °C | 35.4 °C | 57.66 mm |
| August | 23.7 °C | 35.6 °C | 58.67 mm |
| September | 19.6 °C | 31.6 °C | 76.96 mm |
| October | 13.1 °C | 25.8 °C | 109.47 mm |
| November | 7.2 °C | 19.2 °C | 72.9 mm |
| December | 2.4 °C | 14.2 °C | 76.71 mm |
| Annual | 12.8 °C | 24.6 °C | 968.76 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |