| 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 4a: -30F to -25F |
| 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 05859 - North Troy, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 6 | 16 | 29 | 41 | 50 | 55 | 53 | 45 | 34 | 24 | 10 | 30 |
| Avg Max Temp (°F) | 23 | 26 | 36 | 48 | 63 | 71 | 75 | 73 | 64 | 53 | 40 | 28 | 50 |
| Avg Precip (In.) | 3.74 | 2.95 | 3.74 | 3.39 | 4.04 | 4.72 | 4.93 | 5.78 | 5.72 | 4.96 | 4.09 | 4.17 | 52.23 |