Olive Hill, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 42.2 °F (low) to 65.6 °F (high). Annual precipitation averages 48.2 Inches. Olive Hill 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.3 °F | 41.6 °F | 3.32 in. |
| February | 24.4 °F | 45.8 °F | 3.32 in. |
| March | 30.6 °F | 55.4 °F | 4.48 in. |
| April | 40.4 °F | 67.7 °F | 4.48 in. |
| May | 50.6 °F | 75.5 °F | 5.06 in. |
| June | 58.9 °F | 82.5 °F | 4.62 in. |
| July | 63.3 °F | 85.6 °F | 5.5 in. |
| August | 61.5 °F | 84.5 °F | 3.75 in. |
| September | 54.3 °F | 79.0 °F | 3.52 in. |
| October | 41.7 °F | 68.2 °F | 3.08 in. |
| November | 31.9 °F | 55.8 °F | 3.07 in. |
| December | 26.7 °F | 45.6 °F | 3.95 in. |
| Annual | 42.2 °F | 65.6 °F | 48.15 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |