| 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 5a: -20F to -15F |
| 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: | 58d - Lower Berkshire Hills |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 01255 - Sandisfield, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 12 | 21 | 32 | 43 | 51 | 57 | 55 | 47 | 35 | 28 | 17 | 34 |
| Avg Max Temp (°F) | 30 | 33 | 42 | 54 | 67 | 74 | 80 | 77 | 69 | 58 | 46 | 34 | 55 |
| Avg Precip (In.) | 3.62 | 2.98 | 3.81 | 3.75 | 4.53 | 3.99 | 4.39 | 4.61 | 3.99 | 4 | 4.06 | 3.71 | 47.44 |