| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F 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. 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: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 40330 - Harrodsburg, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 24 | 27 | 35 | 43 | 53 | 62 | 66 | 64 | 57 | 46 | 37 | 29 | 45 |
| Avg Max Temp (°F) | 42 | 47 | 57 | 67 | 75 | 83 | 87 | 86 | 80 | 69 | 57 | 46 | 66 |
| Avg Precip (In.) | 3.57 | 3.67 | 4.56 | 4.02 | 4.92 | 4.54 | 4.51 | 3.68 | 3.41 | 3.03 | 3.7 | 4.28 | 47.89 |