Morganfield, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.9 °F (low) to 67.1 °F (high). Annual precipitation averages 47 Inches. Morganfield is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.6 °F | 41.7 °F | 3.57 in. |
| February | 28.0 °F | 46.6 °F | 3.41 in. |
| March | 36.1 °F | 56.3 °F | 4.57 in. |
| April | 46.2 °F | 68.1 °F | 4.77 in. |
| May | 56.7 °F | 77.1 °F | 4.99 in. |
| June | 64.9 °F | 85.0 °F | 4.36 in. |
| July | 68.2 °F | 87.8 °F | 4.06 in. |
| August | 65.8 °F | 86.9 °F | 2.95 in. |
| September | 58.3 °F | 82.5 °F | 3.14 in. |
| October | 47.1 °F | 70.3 °F | 3.39 in. |
| November | 36.4 °F | 56.8 °F | 3.82 in. |
| December | 29.2 °F | 46.1 °F | 3.97 in. |
| Annual | 46.9 °F | 67.1 °F | 47 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |