| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| 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 01944 - Manchester, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 21 | 29 | 37 | 47 | 56 | 62 | 61 | 54 | 44 | 35 | 25 | 41 |
| Avg Max Temp (°F) | 35 | 37 | 45 | 55 | 65 | 74 | 79 | 78 | 70 | 60 | 50 | 41 | 57 |
| Avg Precip (In.) | 4.26 | 3.59 | 4.29 | 4.32 | 3.56 | 3.62 | 3.46 | 3.41 | 3.87 | 4.22 | 4.69 | 4.3 | 47.59 |