Lockhart, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.4 °F (low) to 79 °F (high). Annual precipitation averages 34.6 Inches. Lockhart is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 38.4 °F | 61.4 °F | 2.48 in. |
| February | 42.2 °F | 65.2 °F | 1.93 in. |
| March | 48.9 °F | 71.7 °F | 2.79 in. |
| April | 55.7 °F | 78.4 °F | 2.72 in. |
| May | 64.5 °F | 85.0 °F | 4.31 in. |
| June | 70.8 °F | 91.0 °F | 2.92 in. |
| July | 72.6 °F | 94.4 °F | 1.72 in. |
| August | 72.6 °F | 95.9 °F | 2.5 in. |
| September | 66.9 °F | 89.9 °F | 3.69 in. |
| October | 57.4 °F | 81.5 °F | 4.21 in. |
| November | 47.2 °F | 70.9 °F | 2.68 in. |
| December | 39.8 °F | 63.0 °F | 2.66 in. |
| Annual | 56.4 °F | 79 °F | 34.61 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |