Monument, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 47.1 °F (low) to 76.2 °F (high). Annual precipitation averages 13.3 Inches. Monument is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 28.0 °F | 56.7 °F | 0.47 in. |
| February | 31.1 °F | 61.3 °F | 0.49 in. |
| March | 37.7 °F | 69.2 °F | 0.62 in. |
| April | 44.8 °F | 77.4 °F | 0.62 in. |
| May | 54.8 °F | 85.4 °F | 1.55 in. |
| June | 63.9 °F | 93.4 °F | 1.53 in. |
| July | 67.2 °F | 94.0 °F | 1.78 in. |
| August | 66.0 °F | 92.4 °F | 1.82 in. |
| September | 59.1 °F | 85.3 °F | 2.25 in. |
| October | 48.0 °F | 76.9 °F | 1.02 in. |
| November | 36.1 °F | 65.0 °F | 0.61 in. |
| December | 29.0 °F | 57.1 °F | 0.56 in. |
| Annual | 47.1 °F | 76.2 °F | 13.32 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |