Glenwood, New Mexico has a Warm-Summer Mediterranean Climate climate (Köppen classification: Csb). Average annual temperatures range from 40.7 °F (low) to 74.7 °F (high). Annual precipitation averages 16.7 Inches. Glenwood is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.5 °F | 56.5 °F | 1.37 in. |
| February | 27.4 °F | 59.6 °F | 1.12 in. |
| March | 31.7 °F | 65.8 °F | 1.05 in. |
| April | 36.3 °F | 74.5 °F | 0.36 in. |
| May | 44.1 °F | 82.6 °F | 0.57 in. |
| June | 53.4 °F | 92.1 °F | 0.65 in. |
| July | 60.8 °F | 91.9 °F | 3.04 in. |
| August | 60.2 °F | 89.7 °F | 2.82 in. |
| September | 52.8 °F | 85.2 °F | 2.2 in. |
| October | 41.3 °F | 77.1 °F | 1.22 in. |
| November | 30.7 °F | 65.5 °F | 0.88 in. |
| December | 24.8 °F | 56.4 °F | 1.46 in. |
| Annual | 40.7 °F | 74.7 °F | 16.74 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 150-180 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 | Csb - Warm-Summer Mediterranean Climate |