| 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: | May 21 - May 31 |
| 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 05733 - Brandon, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 11 | 21 | 33 | 44 | 53 | 58 | 56 | 48 | 37 | 29 | 17 | 34 |
| Avg Max Temp (°F) | 29 | 31 | 42 | 55 | 69 | 77 | 81 | 78 | 70 | 58 | 45 | 34 | 56 |
| Avg Precip (In.) | 2.34 | 1.89 | 2.46 | 2.76 | 3.53 | 3.62 | 4.11 | 4.21 | 3.86 | 3.29 | 3.22 | 2.6 | 37.89 |