| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°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 1 - May 10 |
| 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 05477 - Richmond, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 7 | 8 | 20 | 32 | 44 | 53 | 58 | 56 | 47 | 37 | 28 | 15 | 34 |
| Avg Max Temp (°F) | 26 | 28 | 39 | 52 | 66 | 75 | 80 | 77 | 68 | 56 | 43 | 31 | 53 |
| Avg Precip (In.) | 2 | 1.45 | 2.28 | 2.83 | 3.25 | 3.55 | 3.88 | 4.04 | 3.69 | 3.16 | 3.03 | 2.06 | 35.22 |