Liberty, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 62.2 °F (high). Annual precipitation averages 44.3 Inches. Liberty is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.2 °F | 35.8 °F | 3.31 in. |
| February | 22.5 °F | 39.8 °F | 2.64 in. |
| March | 29.8 °F | 50.3 °F | 3.77 in. |
| April | 40.8 °F | 63.4 °F | 4.56 in. |
| May | 51.7 °F | 72.6 °F | 4.93 in. |
| June | 60.4 °F | 81.4 °F | 4.86 in. |
| July | 63.3 °F | 84.0 °F | 4.06 in. |
| August | 61.2 °F | 83.1 °F | 2.96 in. |
| September | 53.7 °F | 77.5 °F | 3.29 in. |
| October | 42.9 °F | 65.8 °F | 3.18 in. |
| November | 33.2 °F | 52.3 °F | 3.26 in. |
| December | 25.5 °F | 40.4 °F | 3.45 in. |
| Annual | 42 °F | 62.2 °F | 44.27 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |