| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F Zone 5b: -15°F to -10°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 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year | |
| Ecoregion: | 21d - Foothills and Shrublands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 87544 - Los Alamos, NM | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 20 | 26 | 31 | 40 | 49 | 53 | 52 | 46 | 35 | 24 | 16 | 34 |
| Avg Max Temp (°F) | 41 | 47 | 55 | 63 | 72 | 82 | 85 | 82 | 76 | 65 | 52 | 42 | 63 |
| Avg Precip (In.) | .95 | .68 | 1.01 | .85 | 1.38 | 1.16 | 2.25 | 2.66 | 1.51 | 1.4 | .95 | .75 | 15.55 |