| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 59c - Southern New England Coastal Plains and Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 02322 - Avon, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 28 | 37 | 46 | 56 | 62 | 60 | 52 | 41 | 33 | 24 | 40 |
| Avg Max Temp (°F) | 36 | 38 | 47 | 57 | 69 | 77 | 82 | 80 | 73 | 62 | 51 | 41 | 59 |
| Avg Precip (In.) | 4.46 | 3.79 | 4.49 | 4.23 | 3.64 | 3.57 | 3.63 | 4.19 | 4.03 | 4.26 | 4.55 | 4.37 | 49.21 |