| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°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: | 58f - Vermont Piedmont | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05068 - South Royalton, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 6 | 18 | 30 | 41 | 50 | 55 | 53 | 45 | 34 | 26 | 13 | 31 |
| Avg Max Temp (°F) | 28 | 31 | 41 | 54 | 68 | 76 | 81 | 78 | 69 | 57 | 44 | 32 | 55 |
| Avg Precip (In.) | 3.28 | 2.45 | 3.03 | 3.19 | 3.61 | 3.5 | 3.83 | 4.03 | 3.65 | 3.6 | 3.59 | 3.1 | 40.87 |