| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 23f - Rocky Mountain Conifer Forests | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 88312 - Alto, NM | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 19 | 23 | 28 | 35 | 43 | 47 | 47 | 41 | 32 | 23 | 18 | 31 |
| Avg Max Temp (°F) | 47 | 50 | 55 | 62 | 70 | 76 | 77 | 76 | 72 | 64 | 54 | 48 | 63 |
| Avg Precip (In.) | 1.08 | .9 | .81 | .7 | 1.36 | 2 | 3.64 | 4.66 | 3.09 | 1.62 | 1 | 1.22 | 22.1 |