| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 59b - Lower Worcester Plateau/Eastern Connecticut Upland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 01452 - Hubbardston, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 12 | 22 | 32 | 41 | 50 | 56 | 54 | 45 | 34 | 27 | 17 | 33 |
| Avg Max Temp (°F) | 31 | 34 | 43 | 54 | 67 | 75 | 80 | 78 | 70 | 59 | 47 | 36 | 56 |
| Avg Precip (In.) | 3.85 | 2.76 | 3.68 | 4.01 | 4 | 4.01 | 4.07 | 4.45 | 3.89 | 4.18 | 4 | 3.63 | 46.53 |