Horse Cave, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.9 °F (low) to 68 °F (high). Annual precipitation averages 52.8 Inches. Horse Cave 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 | 25.7 °F | 44.3 °F | 3.99 in. |
| February | 28.1 °F | 48.6 °F | 4.22 in. |
| March | 35.1 °F | 58.0 °F | 5.07 in. |
| April | 44.6 °F | 68.8 °F | 4.72 in. |
| May | 54.7 °F | 77.1 °F | 5.47 in. |
| June | 62.7 °F | 85.1 °F | 5.05 in. |
| July | 66.4 °F | 88.0 °F | 4.64 in. |
| August | 64.8 °F | 87.1 °F | 3.85 in. |
| September | 57.7 °F | 81.7 °F | 3.96 in. |
| October | 45.5 °F | 70.9 °F | 3.52 in. |
| November | 35.7 °F | 57.8 °F | 3.71 in. |
| December | 29.9 °F | 48.0 °F | 4.64 in. |
| Annual | 45.9 °F | 68 °F | 52.84 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 |