| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58c - Green Mountains/Berkshire Highlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05663 - Northfield, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 8 | 18 | 31 | 42 | 50 | 55 | 53 | 45 | 34 | 26 | 13 | 32 |
| Avg Max Temp (°F) | 26 | 29 | 39 | 51 | 66 | 73 | 78 | 75 | 66 | 55 | 42 | 31 | 53 |
| Avg Precip (In.) | 2.8 | 2.07 | 2.63 | 2.68 | 3.38 | 3.59 | 3.47 | 4.04 | 3.42 | 3.21 | 3.18 | 2.73 | 37.19 |