| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 4a: -30°F to -25°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F 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.1 - Sep. 10 |
| Average Last Frost Date: | Jun. 21 - Jun. 30 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 21e - Sedimentary Subalpine Forests |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 81657 - Vail, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 11 | 15 | 20 | 30 | 38 | 44 | 43 | 36 | 27 | 16 | 9 | 25 |
| Avg Max Temp (°F) | 26 | 31 | 38 | 44 | 53 | 62 | 68 | 67 | 59 | 47 | 34 | 27 | 46 |
| Avg Precip (In.) | 2.68 | 2.62 | 3.27 | 3.15 | 2.63 | 1.42 | 1.8 | 1.74 | 1.64 | 2.11 | 2.36 | 2.73 | 28.14 |