Walton, Kentucky has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.1 °F (low) to 64.2 °F (high). Annual precipitation averages 45.3 Inches. Walton is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.8 °F | 38.9 °F | 3.3 in. |
| February | 25.3 °F | 43.3 °F | 2.9 in. |
| March | 33.5 °F | 52.9 °F | 4.11 in. |
| April | 44.1 °F | 64.9 °F | 4.53 in. |
| May | 54.2 °F | 74.0 °F | 4.93 in. |
| June | 62.5 °F | 82.4 °F | 4.6 in. |
| July | 65.9 °F | 85.7 °F | 4.21 in. |
| August | 64.8 °F | 84.7 °F | 3.38 in. |
| September | 58.0 °F | 78.7 °F | 3.14 in. |
| October | 46.4 °F | 67.6 °F | 3.24 in. |
| November | 35.5 °F | 53.7 °F | 3.33 in. |
| December | 27.7 °F | 43.1 °F | 3.62 in. |
| Annual | 45.1 °F | 64.2 °F | 45.29 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |