| 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 Zone 4b: -25°F to -20°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 58o - Northern Connecticut Valley | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05048 - Hartland, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 7 | 19 | 31 | 42 | 51 | 56 | 54 | 45 | 34 | 26 | 13 | 32 |
| Avg Max Temp (°F) | 28 | 32 | 41 | 54 | 68 | 76 | 81 | 79 | 70 | 58 | 45 | 33 | 55 |
| Avg Precip (In.) | 3.26 | 2.5 | 2.99 | 3.13 | 3.7 | 3.26 | 3.64 | 3.61 | 3.68 | 3.64 | 3.47 | 3.1 | 39.99 |