| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| 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: | 72h - Caseyville Hills |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 42754 - Leitchfield, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 27 | 35 | 43 | 52 | 61 | 65 | 63 | 56 | 44 | 36 | 28 | 44 |
| Avg Max Temp (°F) | 42 | 48 | 58 | 68 | 77 | 84 | 88 | 87 | 81 | 70 | 57 | 46 | 67 |
| Avg Precip (In.) | 3.74 | 4.16 | 4.62 | 4.3 | 5.13 | 4.11 | 4.66 | 3.53 | 3.78 | 3.17 | 4.27 | 4.74 | 50.19 |