| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F |
| 2012 Hardiness Zone: | Zone 4b: -25°F to -20°F 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: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58k - Green Mountain Foothills |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05492 - Waterville, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 6 | 17 | 29 | 41 | 51 | 55 | 54 | 45 | 34 | 25 | 12 | 31 |
| Avg Max Temp (°F) | 25 | 28 | 38 | 51 | 66 | 75 | 79 | 76 | 67 | 55 | 42 | 30 | 53 |
| Avg Precip (In.) | 2.67 | 2.08 | 2.87 | 3.45 | 3.99 | 4.18 | 4.61 | 4.95 | 4.34 | 3.95 | 3.96 | 2.94 | 43.98 |