| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 70f - Ohio/Kentucky Carboniferous Plateau |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 41101 - Ashland, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 23 | 31 | 39 | 49 | 58 | 63 | 61 | 54 | 42 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 41 | 46 | 56 | 67 | 76 | 84 | 87 | 86 | 80 | 69 | 57 | 46 | 66 |
| Avg Precip (In.) | 3.18 | 3.05 | 3.76 | 3.4 | 4.43 | 4.08 | 4.65 | 3.9 | 2.86 | 2.8 | 3.26 | 3.52 | 42.89 |