Mayfield, New York has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.2 °C (low) to 13 °C (high). Annual precipitation averages 1223.5 Millimeters. Mayfield is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.1 °C | -1.5 °C | 93.22 mm |
| February | -10.4 °C | 0.1 °C | 77.47 mm |
| March | -5.9 °C | 4.8 °C | 91.69 mm |
| April | 0.5 °C | 12.2 °C | 102.62 mm |
| May | 7.1 °C | 19.4 °C | 104.9 mm |
| June | 12.2 °C | 23.9 °C | 119.13 mm |
| July | 15 °C | 26.3 °C | 113.03 mm |
| August | 14 °C | 25.5 °C | 112.27 mm |
| September | 9.9 °C | 21.5 °C | 101.6 mm |
| October | 3.7 °C | 14.5 °C | 115.06 mm |
| November | -1.8 °C | 7.4 °C | 89.66 mm |
| December | -7.1 °C | 1.3 °C | 102.87 mm |
| Annual | 2.2 °C | 13 °C | 1223.52 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |