Liberal, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 41.7 °F (low) to 70.4 °F (high). Annual precipitation averages 19.4 Inches. Liberal is located in USDA Plant Hardiness Zone 6b. 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 | 19.8 °F | 47.6 °F | 0.44 in. |
| February | 22.2 °F | 51.2 °F | 0.37 in. |
| March | 30.2 °F | 60.8 °F | 1.18 in. |
| April | 39.0 °F | 69.4 °F | 1.74 in. |
| May | 50.2 °F | 78.8 °F | 2.29 in. |
| June | 61.0 °F | 89.1 °F | 2.96 in. |
| July | 65.7 °F | 93.4 °F | 3.0 in. |
| August | 64.0 °F | 91.2 °F | 2.6 in. |
| September | 55.7 °F | 84.3 °F | 1.43 in. |
| October | 42.1 °F | 71.9 °F | 1.94 in. |
| November | 29.4 °F | 59.1 °F | 0.57 in. |
| December | 20.8 °F | 47.6 °F | 0.84 in. |
| Annual | 41.7 °F | 70.4 °F | 19.36 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |