Liberty, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.4 °C (low) to 19.4 °C (high). Annual precipitation averages 1416.6 Millimeters. Liberty 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 | -3.7 °C | 6.4 °C | 111.76 mm |
| February | -2.2 °C | 8.9 °C | 108.2 mm |
| March | 1.3 °C | 14 °C | 135.89 mm |
| April | 6.6 °C | 19.8 °C | 124.21 mm |
| May | 12.2 °C | 24.3 °C | 145.8 mm |
| June | 16.7 °C | 28.4 °C | 136.14 mm |
| July | 18.7 °C | 30.1 °C | 134.11 mm |
| August | 17.7 °C | 30 °C | 99.57 mm |
| September | 13.9 °C | 27.3 °C | 105.41 mm |
| October | 7.4 °C | 20.8 °C | 91.95 mm |
| November | 1.6 °C | 14.2 °C | 92.71 mm |
| December | -1.4 °C | 8.5 °C | 130.81 mm |
| Annual | 7.4 °C | 19.4 °C | 1416.56 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |