The Hills, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.8 °F (low) to 78.9 °F (high). Annual precipitation averages 35 Inches. The Hills is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 37.4 °F | 61.2 °F | 2.37 in. |
| February | 41.1 °F | 64.6 °F | 2.01 in. |
| March | 48.1 °F | 71.6 °F | 2.83 in. |
| April | 55.0 °F | 78.6 °F | 2.61 in. |
| May | 63.8 °F | 85.1 °F | 4.49 in. |
| June | 70.2 °F | 91.4 °F | 3.36 in. |
| July | 72.2 °F | 95.0 °F | 2.14 in. |
| August | 72.0 °F | 96.2 °F | 2.44 in. |
| September | 66.8 °F | 89.9 °F | 3.48 in. |
| October | 56.9 °F | 81.3 °F | 3.89 in. |
| November | 46.9 °F | 69.9 °F | 2.92 in. |
| December | 38.9 °F | 62.3 °F | 2.49 in. |
| Annual | 55.8 °F | 78.9 °F | 35.03 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |