| 2023 Hardiness Zone: | Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°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: | Aug. 21 - Aug. 31 |
| Average Last Frost Date: | Jun. 21 - Jun. 30 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 21i - Sagebrush Parks |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 81231 - Gunnison, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | -5 | 0 | 14 | 21 | 30 | 36 | 43 | 41 | 33 | 22 | 11 | -1 | 20 |
| Avg Max Temp (°F) | 26 | 32 | 43 | 54 | 65 | 75 | 80 | 78 | 71 | 60 | 43 | 30 | 55 |
| Avg Precip (In.) | .79 | .62 | .57 | .61 | .82 | .6 | 1.28 | 1.69 | 1.01 | .75 | .57 | .74 | 10.06 |