| 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 3b: -35°F to -30°F Zone 5b: -15°F to -10°F Zone 4b: -25°F to -20°F Zone 5a: -20°F to -15°F Zone 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Aug. 11 - Aug. 20 | |
| Average Last Frost Date: | Jul. 1 - Jul. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 21j - Grassland Parks | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 80449 - Hartsel, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 0 | 3 | 13 | 19 | 28 | 36 | 41 | 40 | 32 | 22 | 10 | 0 | 20 |
| Avg Max Temp (°F) | 32 | 36 | 42 | 47 | 58 | 69 | 74 | 71 | 65 | 55 | 40 | 33 | 52 |
| Avg Precip (In.) | .39 | .32 | .73 | 1.05 | 1.32 | 1.42 | 2.45 | 2.44 | 1.18 | .73 | .49 | .36 | 12.87 |