| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 4b: -25°F to -20°F Zone 4a: -30°F to -25°F 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 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 | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| 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: | 21d - Foothills and Shrublands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 81621 - Basalt, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 18 | 24 | 29 | 38 | 44 | 48 | 48 | 41 | 32 | 19 | 14 | 31 |
| Avg Max Temp (°F) | 35 | 41 | 48 | 54 | 64 | 72 | 77 | 77 | 70 | 57 | 39 | 35 | 56 |
| Avg Precip (In.) | 1.16 | .85 | 1.16 | 1.31 | 1.6 | 1.07 | 1.39 | 1.26 | 1.42 | 1.53 | .95 | 1.13 | 14.84 |