| 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 |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 83b - Champlain Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05486 - South Hero, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 11 | 22 | 34 | 46 | 56 | 61 | 59 | 51 | 40 | 31 | 18 | 36 |
| Avg Max Temp (°F) | 26 | 29 | 40 | 53 | 67 | 76 | 81 | 78 | 69 | 57 | 44 | 32 | 54 |
| Avg Precip (In.) | 2.12 | 1.63 | 2.16 | 2.81 | 3.04 | 3.29 | 3.41 | 3.91 | 3.51 | 2.9 | 2.87 | 2.21 | 33.86 |