Mayfield, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.1 °C (low) to 14.6 °C (high). Annual precipitation averages 1157.5 Millimeters. Mayfield is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.1 °C | 0.9 °C | 86.87 mm |
| February | -6.8 °C | 2.2 °C | 62.23 mm |
| March | -2.7 °C | 7.1 °C | 82.55 mm |
| April | 3.5 °C | 14 °C | 97.03 mm |
| May | 9.3 °C | 20.1 °C | 102.36 mm |
| June | 14.6 °C | 25 °C | 104.65 mm |
| July | 16.9 °C | 27.1 °C | 114.3 mm |
| August | 16.3 °C | 26.3 °C | 103.38 mm |
| September | 12.6 °C | 23.1 °C | 109.47 mm |
| October | 6.8 °C | 16.4 °C | 108.46 mm |
| November | 1.3 °C | 9.6 °C | 94.49 mm |
| December | -3.4 °C | 3.7 °C | 91.69 mm |
| Annual | 5.1 °C | 14.6 °C | 1157.48 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |