| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 4b: -25°F to -20°F Zone 6a: -10°F to -5°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 4a: -30°F to -25°F | |
| 1990 Hardiness Zone: | Zone 4a: -30F to -25F | |
| Average First Frost Date: | Sep. 21 - Sep. 30 | |
| Average Last Frost Date: | Jun. 1 - Jun. 10 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 21h - Volcanic Mid-Elevation Forests and Shrublands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 81243 - Powderhorn, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 8 | 11 | 19 | 25 | 35 | 42 | 46 | 44 | 38 | 29 | 15 | 8 | 27 |
| Avg Max Temp (°F) | 30 | 33 | 42 | 49 | 59 | 69 | 73 | 70 | 65 | 54 | 36 | 30 | 51 |
| Avg Precip (In.) | .99 | .71 | 1.27 | 1.03 | 1.09 | .77 | 1.83 | 2.12 | 1.31 | 1.24 | .96 | .85 | 14.17 |