London, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.1 °F (low) to 66.5 °F (high). Annual precipitation averages 52.1 Inches. London 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 | 25.0 °F | 43.8 °F | 4.39 in. |
| February | 28.0 °F | 47.8 °F | 4.07 in. |
| March | 34.8 °F | 57.1 °F | 5.01 in. |
| April | 44.0 °F | 67.8 °F | 4.69 in. |
| May | 53.6 °F | 75.7 °F | 4.77 in. |
| June | 61.5 °F | 82.6 °F | 4.88 in. |
| July | 65.3 °F | 85.4 °F | 5.11 in. |
| August | 63.8 °F | 84.7 °F | 3.5 in. |
| September | 56.9 °F | 79.7 °F | 3.65 in. |
| October | 44.9 °F | 69.2 °F | 3.38 in. |
| November | 34.4 °F | 57.2 °F | 3.6 in. |
| December | 29.2 °F | 47.4 °F | 5.05 in. |
| Annual | 45.1 °F | 66.5 °F | 52.1 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 | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |