| 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 Zone 5b: -15°F to -10°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: | 58f - Vermont Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05143 - Chester, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 8 | 19 | 31 | 42 | 51 | 56 | 54 | 46 | 34 | 27 | 14 | 32 |
| Avg Max Temp (°F) | 29 | 32 | 41 | 54 | 68 | 76 | 81 | 78 | 70 | 58 | 45 | 33 | 55 |
| Avg Precip (In.) | 3.39 | 2.66 | 3.58 | 3.53 | 3.84 | 3.49 | 3.8 | 4.07 | 3.7 | 3.71 | 3.69 | 3.42 | 42.87 |