Lancaster, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 55.1 °F (low) to 76.5 °F (high). Annual precipitation averages 40.5 Inches. Lancaster is located in USDA Plant Hardiness Zone 8b. 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 | 35.4 °F | 56.3 °F | 2.85 in. |
| February | 38.9 °F | 60.5 °F | 2.88 in. |
| March | 46.2 °F | 67.7 °F | 3.63 in. |
| April | 53.6 °F | 75.5 °F | 3.81 in. |
| May | 63.3 °F | 83.0 °F | 4.55 in. |
| June | 71.1 °F | 91.0 °F | 3.9 in. |
| July | 74.1 °F | 95.3 °F | 2.08 in. |
| August | 73.9 °F | 95.9 °F | 2.47 in. |
| September | 66.9 °F | 89.3 °F | 3.07 in. |
| October | 55.6 °F | 78.9 °F | 4.82 in. |
| November | 45.3 °F | 67.0 °F | 3.0 in. |
| December | 37.2 °F | 58.1 °F | 3.4 in. |
| Annual | 55.1 °F | 76.5 °F | 40.46 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |