Mackville, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.4 °C (low) to 18.9 °C (high). Annual precipitation averages 1284 Millimeters. Mackville 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 | -4.1 °C | 5.6 °C | 93.73 mm |
| February | -2.6 °C | 8.2 °C | 97.79 mm |
| March | 1.2 °C | 13.1 °C | 122.43 mm |
| April | 6.7 °C | 19.1 °C | 118.36 mm |
| May | 12.6 °C | 23.9 °C | 135.89 mm |
| June | 16.8 °C | 28.7 °C | 133.86 mm |
| July | 18.9 °C | 30.1 °C | 117.6 mm |
| August | 17.7 °C | 29.9 °C | 87.63 mm |
| September | 14 °C | 26.9 °C | 95 mm |
| October | 7.7 °C | 20.5 °C | 85.6 mm |
| November | 1.7 °C | 13.4 °C | 85.6 mm |
| December | -1.9 °C | 7.6 °C | 110.49 mm |
| Annual | 7.4 °C | 18.9 °C | 1283.98 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |