| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | BSk - Cold Semi-Arid Climate | |
| Ecoregion: | 25i - Llano Estacado | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 88130 - Portales, NM | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 26 | 33 | 40 | 51 | 60 | 64 | 62 | 55 | 43 | 31 | 24 | 43 |
| Avg Max Temp (°F) | 54 | 59 | 67 | 75 | 83 | 90 | 92 | 89 | 84 | 75 | 62 | 54 | 74 |
| Avg Precip (In.) | .5 | .4 | .53 | .79 | 1.67 | 2.55 | 2.6 | 3.14 | 1.98 | 1.57 | .73 | .66 | 17.1 |