| 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 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: | 58c - Green Mountains/Berkshire Highlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 05674 - Warren, VT | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 5 | 7 | 17 | 29 | 41 | 49 | 54 | 52 | 44 | 33 | 25 | 12 | 31 |
| Avg Max Temp (°F) | 25 | 28 | 37 | 50 | 64 | 72 | 76 | 74 | 65 | 54 | 42 | 30 | 51 |
| Avg Precip (In.) | 2.88 | 2.42 | 2.94 | 3.57 | 4 | 4.59 | 4.61 | 4.92 | 4.12 | 3.98 | 3.96 | 3.03 | 45.03 |