Falmouth, Kentucky has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.1 °F (low) to 65.7 °F (high). Annual precipitation averages 44.8 Inches. Falmouth 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 | 22.1 °F | 41.2 °F | 3.19 in. |
| February | 24.4 °F | 45.3 °F | 2.93 in. |
| March | 31.4 °F | 54.8 °F | 4.25 in. |
| April | 40.9 °F | 66.5 °F | 4.32 in. |
| May | 51.5 °F | 75.2 °F | 4.71 in. |
| June | 60.1 °F | 83.1 °F | 4.68 in. |
| July | 64.9 °F | 86.7 °F | 4.7 in. |
| August | 62.6 °F | 85.7 °F | 3.21 in. |
| September | 55.5 °F | 80.4 °F | 3.2 in. |
| October | 43.8 °F | 68.7 °F | 3.06 in. |
| November | 33.0 °F | 55.6 °F | 3.08 in. |
| December | 26.7 °F | 45.5 °F | 3.48 in. |
| Annual | 43.1 °F | 65.7 °F | 44.81 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |