| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59a - Connecticut Valley | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 01020 - Chicopee, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 18 | 26 | 37 | 47 | 56 | 62 | 60 | 51 | 40 | 32 | 22 | 39 |
| Avg Max Temp (°F) | 36 | 39 | 48 | 60 | 72 | 80 | 85 | 83 | 75 | 64 | 52 | 40 | 61 |
| Avg Precip (In.) | 3.63 | 2.87 | 3.79 | 4.03 | 4.11 | 3.98 | 4.11 | 3.9 | 3.96 | 4 | 3.89 | 3.55 | 45.8 |