| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°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 4b: -25°F to -20°F Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| 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: | 21d - Foothills and Shrublands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 81223 - Cotopaxi, CO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 18 | 25 | 31 | 40 | 47 | 51 | 49 | 42 | 32 | 19 | 16 | 32 |
| Avg Max Temp (°F) | 43 | 45 | 53 | 59 | 68 | 78 | 82 | 79 | 73 | 64 | 46 | 42 | 61 |
| Avg Precip (In.) | .5 | .48 | 1.25 | 1.83 | 2.07 | 1.3 | 2.21 | 2.42 | 1.23 | .98 | .88 | .58 | 15.71 |