Ashland, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 6.6 °C (low) to 19.3 °C (high). Annual precipitation averages 1152.6 Millimeters. Ashland 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 5.9 °C | 83.82 mm |
| February | -3.6 °C | 8.2 °C | 82.04 mm |
| March | 0.1 °C | 13.4 °C | 109.73 mm |
| April | 5.5 °C | 20.4 °C | 95.76 mm |
| May | 11.2 °C | 24.9 °C | 118.36 mm |
| June | 16.1 °C | 28.8 °C | 111.25 mm |
| July | 18.3 °C | 30.6 °C | 128.27 mm |
| August | 17.5 °C | 30.1 °C | 93.73 mm |
| September | 13.4 °C | 26.9 °C | 86.61 mm |
| October | 6.5 °C | 20.9 °C | 75.18 mm |
| November | 0.8 °C | 13.9 °C | 72.64 mm |
| December | -2.2 °C | 8.1 °C | 95.25 mm |
| Annual | 6.6 °C | 19.3 °C | 1152.64 mm |
| 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 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 |