Grants, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 34.7 °F (low) to 68 °F (high). Annual precipitation averages 10.3 Inches. Grants 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 | 16.7 °F | 46.8 °F | 0.4 in. |
| February | 20.5 °F | 51.4 °F | 0.5 in. |
| March | 25.4 °F | 58.8 °F | 0.54 in. |
| April | 31.6 °F | 67.2 °F | 0.67 in. |
| May | 40.2 °F | 76.0 °F | 0.4 in. |
| June | 49.0 °F | 87.0 °F | 0.72 in. |
| July | 56.2 °F | 88.7 °F | 1.89 in. |
| August | 54.4 °F | 86.1 °F | 1.9 in. |
| September | 46.6 °F | 80.4 °F | 1.31 in. |
| October | 34.3 °F | 70.2 °F | 0.9 in. |
| November | 24.0 °F | 56.6 °F | 0.46 in. |
| December | 16.9 °F | 47.2 °F | 0.61 in. |
| Annual | 34.7 °F | 68 °F | 10.3 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 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |