Mayfield, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.1 °F (low) to 68.6 °F (high). Annual precipitation averages 52.9 Inches. Mayfield 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 | 27.6 °F | 44.8 °F | 3.97 in. |
| February | 30.2 °F | 49.3 °F | 4.41 in. |
| March | 38.0 °F | 59.1 °F | 5.02 in. |
| April | 47.2 °F | 69.6 °F | 5.22 in. |
| May | 57.3 °F | 78.0 °F | 5.69 in. |
| June | 65.8 °F | 85.6 °F | 4.4 in. |
| July | 69.2 °F | 88.7 °F | 4.2 in. |
| August | 66.8 °F | 88.0 °F | 3.2 in. |
| September | 59.4 °F | 82.6 °F | 3.72 in. |
| October | 48.0 °F | 71.2 °F | 3.79 in. |
| November | 37.5 °F | 58.1 °F | 4.21 in. |
| December | 30.5 °F | 47.8 °F | 5.06 in. |
| Annual | 48.1 °F | 68.6 °F | 52.89 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 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |