Sandy Oaks, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 14.8 °C (low) to 27.5 °C (high). Annual precipitation averages 798.1 Millimeters. Sandy Oaks is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 11 - Feb. 20 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.8 °C | 18.1 °C | 44.7 mm |
| February | 7.1 °C | 20.5 °C | 44.96 mm |
| March | 10.8 °C | 23.9 °C | 60.96 mm |
| April | 14.4 °C | 27.6 °C | 60.96 mm |
| May | 19.2 °C | 31 °C | 94.74 mm |
| June | 22.3 °C | 34.1 °C | 82.3 mm |
| July | 23.3 °C | 35.5 °C | 52.32 mm |
| August | 23.3 °C | 36.2 °C | 67.31 mm |
| September | 20.7 °C | 33.1 °C | 92.46 mm |
| October | 15.6 °C | 28.7 °C | 82.3 mm |
| November | 9.9 °C | 22.9 °C | 59.44 mm |
| December | 5.8 °C | 18.8 °C | 55.63 mm |
| Annual | 14.8 °C | 27.5 °C | 798.08 mm |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 11 - Feb. 20 |
| Average Days With Frost | 10-20 Days |
| Plant Hardiness Zone | Zone 9a : -6.7°C to -3.9°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |