Hanover, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 38.7 °F (low) to 69.4 °F (high). Annual precipitation averages 21.3 Inches. Hanover is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.0 °F | 51.9 °F | 1.28 in. |
| February | 25.4 °F | 55.2 °F | 1.22 in. |
| March | 29.8 °F | 61.3 °F | 1.04 in. |
| April | 35.1 °F | 68.6 °F | 0.46 in. |
| May | 43.0 °F | 76.9 °F | 0.65 in. |
| June | 51.8 °F | 86.6 °F | 1.05 in. |
| July | 57.5 °F | 86.3 °F | 3.98 in. |
| August | 56.4 °F | 83.7 °F | 4.31 in. |
| September | 50.1 °F | 79.0 °F | 3.0 in. |
| October | 39.3 °F | 71.0 °F | 1.34 in. |
| November | 29.4 °F | 60.4 °F | 1.3 in. |
| December | 23.8 °F | 51.9 °F | 1.64 in. |
| Annual | 38.7 °F | 69.4 °F | 21.27 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |