| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 3b: -35F to -30F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58k - Green Mountain Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05448 - East Fairfield, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 7 | 18 | 31 | 43 | 52 | 57 | 55 | 47 | 37 | 27 | 14 | 33 |
| Avg Max Temp (°F) | 27 | 30 | 40 | 54 | 68 | 76 | 80 | 78 | 69 | 57 | 44 | 31 | 54 |
| Avg Precip (In.) | 2.58 | 1.94 | 2.69 | 3.01 | 3.63 | 3.65 | 4.14 | 4.51 | 3.94 | 3.58 | 3.66 | 2.78 | 40.09 |