Alamo, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 37.6 °F (low) to 69 °F (high). Annual precipitation averages 10.6 Inches. Alamo is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.5 °F | 48.6 °F | 0.47 in. |
| February | 23.0 °F | 53.4 °F | 0.34 in. |
| March | 28.6 °F | 60.8 °F | 0.5 in. |
| April | 34.6 °F | 68.5 °F | 0.44 in. |
| May | 43.6 °F | 77.5 °F | 0.6 in. |
| June | 52.8 °F | 87.7 °F | 0.56 in. |
| July | 58.5 °F | 88.3 °F | 2.08 in. |
| August | 56.9 °F | 85.7 °F | 2.04 in. |
| September | 49.5 °F | 80.5 °F | 1.53 in. |
| October | 38.0 °F | 70.2 °F | 0.9 in. |
| November | 26.7 °F | 58.1 °F | 0.48 in. |
| December | 19.8 °F | 48.5 °F | 0.64 in. |
| Annual | 37.6 °F | 69 °F | 10.58 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |