| 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 |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 01013 - Chicopee, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 16 | 26 | 37 | 47 | 56 | 61 | 60 | 51 | 40 | 32 | 22 | 38 |
| Avg Max Temp (°F) | 35 | 39 | 48 | 60 | 72 | 80 | 85 | 83 | 75 | 63 | 51 | 39 | 61 |
| Avg Precip (In.) | 3.69 | 2.87 | 3.75 | 4 | 4.2 | 3.99 | 4.13 | 4.12 | 4.01 | 4.1 | 3.94 | 3.6 | 46.4 |