| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Sep. 21 - Sep. 30 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate |
| Ecoregion: | 25c - Moderate Relief Plains |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 80105 - Deer Trail, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 17 | 24 | 31 | 41 | 51 | 57 | 55 | 45 | 34 | 22 | 14 | 34 |
| Avg Max Temp (°F) | 41 | 46 | 53 | 61 | 71 | 82 | 88 | 86 | 78 | 67 | 50 | 42 | 64 |
| Avg Precip (In.) | .44 | .35 | 1.04 | 1.57 | 2.73 | 1.93 | 2.32 | 1.97 | 1.17 | .82 | .79 | .43 | 15.56 |