| 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 5a: -20F to -15F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | Jun. 1 - Jun. 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 58b - Western New England Marble Valleys |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05250 - Arlington, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 9 | 10 | 21 | 31 | 42 | 50 | 55 | 53 | 45 | 35 | 27 | 16 | 33 |
| Avg Max Temp (°F) | 30 | 32 | 42 | 55 | 68 | 75 | 79 | 77 | 69 | 58 | 45 | 34 | 55 |
| Avg Precip (In.) | 3.28 | 2.48 | 3.44 | 3.46 | 4.22 | 4.01 | 3.92 | 4.55 | 3.92 | 3.8 | 3.72 | 3.17 | 43.97 |