| 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 42437 - Morganfield, KY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 27 | 36 | 45 | 55 | 63 | 67 | 65 | 58 | 46 | 37 | 28 | 46 |
| Avg Max Temp (°F) | 41 | 47 | 57 | 68 | 77 | 85 | 89 | 88 | 81 | 71 | 57 | 46 | 67 |
| Avg Precip (In.) | 3.22 | 3.34 | 4.55 | 4.4 | 4.93 | 4.03 | 3.98 | 3.19 | 3.09 | 2.81 | 4.34 | 3.76 | 45.63 |