| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F | |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F | |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | BWk - Cold Desert Climate | |
| Ecoregion: | 24b - Chihuahuan Desert Grasslands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 79851 - Sierra Blanca, TX | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 34 | 41 | 51 | 60 | 63 | 61 | 55 | 44 | 32 | 25 | 43 |
| Avg Max Temp (°F) | 57 | 63 | 69 | 77 | 85 | 89 | 92 | 90 | 85 | 77 | 66 | 58 | 75 |
| Avg Precip (In.) | .48 | .39 | .26 | .33 | .59 | 1.16 | 2.15 | 2.34 | 2.26 | 1.2 | .44 | .65 | 12.24 |