Milan, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.4 °F (low) to 67.8 °F (high). Annual precipitation averages 10.1 Inches. Milan is located in USDA Plant Hardiness Zone 6a. 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 | 16.5 °F | 46.6 °F | 0.44 in. |
| February | 20.4 °F | 51.1 °F | 0.5 in. |
| March | 25.1 °F | 58.4 °F | 0.41 in. |
| April | 31.3 °F | 66.8 °F | 0.62 in. |
| May | 39.9 °F | 75.6 °F | 0.6 in. |
| June | 48.6 °F | 86.7 °F | 0.56 in. |
| July | 55.9 °F | 88.4 °F | 1.71 in. |
| August | 54.2 °F | 85.8 °F | 1.83 in. |
| September | 46.4 °F | 80.2 °F | 1.35 in. |
| October | 34.1 °F | 70.0 °F | 0.93 in. |
| November | 23.7 °F | 56.5 °F | 0.48 in. |
| December | 16.6 °F | 47.0 °F | 0.63 in. |
| Annual | 34.4 °F | 67.8 °F | 10.06 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |