| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 4a: -30°F to -25°F |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F |
| 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: | 58l - Northern Piedmont |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05843 - Hardwick, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 3 | 4 | 16 | 28 | 40 | 49 | 53 | 51 | 43 | 33 | 24 | 10 | 30 |
| Avg Max Temp (°F) | 24 | 28 | 38 | 50 | 65 | 74 | 78 | 76 | 66 | 54 | 41 | 29 | 52 |
| Avg Precip (In.) | 2.79 | 2.11 | 2.67 | 2.78 | 3.45 | 3.82 | 4 | 4.27 | 3.53 | 3.34 | 3.34 | 3 | 39.09 |