Maxwell, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 33.4 °F (low) to 67.8 °F (high). Annual precipitation averages 14.6 Inches. Maxwell is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 14.5 °F | 48.5 °F | 0.39 in. |
| February | 16.9 °F | 51.4 °F | 0.26 in. |
| March | 23.9 °F | 59.8 °F | 0.77 in. |
| April | 31.1 °F | 66.5 °F | 0.89 in. |
| May | 40.5 °F | 75.3 °F | 1.72 in. |
| June | 49.7 °F | 84.3 °F | 1.94 in. |
| July | 54.4 °F | 87.3 °F | 2.41 in. |
| August | 53.2 °F | 85.5 °F | 2.74 in. |
| September | 45.9 °F | 79.8 °F | 1.77 in. |
| October | 33.5 °F | 70.1 °F | 0.97 in. |
| November | 22.4 °F | 57.2 °F | 0.4 in. |
| December | 14.5 °F | 47.6 °F | 0.35 in. |
| Annual | 33.4 °F | 67.8 °F | 14.61 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |