Avon, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5 °C (low) to 15.5 °C (high). Annual precipitation averages 1284.5 Millimeters. Avon is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.1 °C | 2.6 °C | 105.66 mm |
| February | -6.3 °C | 3.8 °C | 91.69 mm |
| March | -2.3 °C | 7.7 °C | 131.06 mm |
| April | 3.3 °C | 14.3 °C | 116.33 mm |
| May | 8.7 °C | 20.1 °C | 91.44 mm |
| June | 13.9 °C | 24.9 °C | 101.35 mm |
| July | 17.3 °C | 28.2 °C | 89.66 mm |
| August | 16.6 °C | 27.4 °C | 94.74 mm |
| September | 12.6 °C | 23.4 °C | 98.55 mm |
| October | 6.3 °C | 16.9 °C | 127.76 mm |
| November | 1 °C | 11 °C | 109.98 mm |
| December | -3.7 °C | 5.6 °C | 126.24 mm |
| Annual | 5 °C | 15.5 °C | 1284.46 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |