Lancaster, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.5 °F (low) to 66.1 °F (high). Annual precipitation averages 48.1 Inches. Lancaster is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.0 °F | 42.6 °F | 3.62 in. |
| February | 28.0 °F | 47.0 °F | 3.68 in. |
| March | 34.7 °F | 56.0 °F | 4.72 in. |
| April | 44.3 °F | 66.8 °F | 4.31 in. |
| May | 54.4 °F | 75.1 °F | 5.01 in. |
| June | 62.1 °F | 83.0 °F | 5.05 in. |
| July | 65.9 °F | 85.8 °F | 4.49 in. |
| August | 64.0 °F | 85.6 °F | 3.36 in. |
| September | 57.1 °F | 80.1 °F | 3.75 in. |
| October | 46.0 °F | 68.8 °F | 3.01 in. |
| November | 35.4 °F | 56.3 °F | 3.09 in. |
| December | 29.0 °F | 46.1 °F | 3.98 in. |
| Annual | 45.5 °F | 66.1 °F | 48.07 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |