| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 71l - Inner Bluegrass |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 40601 - Frankfort, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 23 | 31 | 40 | 50 | 59 | 64 | 62 | 55 | 42 | 34 | 26 | 42 |
| Avg Max Temp (°F) | 40 | 45 | 55 | 66 | 75 | 83 | 87 | 86 | 80 | 68 | 56 | 45 | 65 |
| Avg Precip (In.) | 3.15 | 3.12 | 4.1 | 3.75 | 4.73 | 4.37 | 4.22 | 3.64 | 3.16 | 2.71 | 3.39 | 3.75 | 44.1 |