| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 11 - Jun. 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58b - Western New England Marble Valleys |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05251 - Dorset, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 8 | 19 | 30 | 40 | 49 | 53 | 52 | 44 | 34 | 26 | 15 | 31 |
| Avg Max Temp (°F) | 29 | 31 | 41 | 53 | 66 | 73 | 77 | 75 | 67 | 57 | 44 | 34 | 54 |
| Avg Precip (In.) | 3.73 | 2.91 | 3.92 | 3.72 | 4.51 | 4.26 | 4.19 | 4.85 | 4.11 | 4.29 | 4.12 | 3.64 | 48.25 |