| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | 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. 11 - Jun. 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 58c - Green Mountains/Berkshire Highlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05751 - Killington, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 5 | 16 | 28 | 38 | 47 | 51 | 50 | 43 | 32 | 24 | 12 | 29 |
| Avg Max Temp (°F) | 28 | 31 | 40 | 52 | 66 | 73 | 78 | 75 | 68 | 57 | 44 | 32 | 54 |
| Avg Precip (In.) | 3.93 | 2.91 | 3.69 | 3.99 | 4.66 | 4.56 | 4.65 | 5.1 | 4.5 | 4.5 | 4.4 | 3.79 | 50.68 |