| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 72c - Green River-Southern Wabash Lowlands |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 42431 - Madisonville, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 37 | 46 | 55 | 63 | 67 | 65 | 59 | 47 | 38 | 29 | 47 |
| Avg Max Temp (°F) | 44 | 50 | 60 | 71 | 79 | 87 | 91 | 89 | 84 | 73 | 59 | 48 | 70 |
| Avg Precip (In.) | 3.68 | 3.83 | 4.51 | 4.77 | 4.96 | 3.84 | 4.17 | 3.26 | 3.4 | 3.2 | 4.28 | 4.24 | 48.13 |