| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F 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: | 58b - Western New England Marble Valleys |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 01201 - Pittsfield, MA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 11 | 12 | 21 | 32 | 43 | 51 | 56 | 54 | 46 | 35 | 28 | 17 | 34 |
| Avg Max Temp (°F) | 31 | 33 | 43 | 55 | 67 | 75 | 80 | 78 | 69 | 59 | 47 | 35 | 56 |
| Avg Precip (In.) | 3.29 | 2.65 | 3.4 | 3.79 | 4.64 | 4.24 | 4.4 | 4.44 | 3.9 | 3.81 | 3.85 | 3.26 | 45.67 |