Melrose, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 6.3 °C (low) to 23 °C (high). Annual precipitation averages 411.5 Millimeters. Melrose is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.2 °C | 11.6 °C | 11.18 mm |
| February | -2.6 °C | 14.4 °C | 8.64 mm |
| March | 0.8 °C | 18.8 °C | 18.29 mm |
| April | 4.7 °C | 23.4 °C | 19.81 mm |
| May | 10.2 °C | 28.2 °C | 42.67 mm |
| June | 15.6 °C | 33 °C | 46.74 mm |
| July | 17.7 °C | 33.5 °C | 66.8 mm |
| August | 17 °C | 32.4 °C | 70.61 mm |
| September | 13.2 °C | 29.1 °C | 55.12 mm |
| October | 6.7 °C | 23.6 °C | 45.97 mm |
| November | 0.4 °C | 16.6 °C | 11.18 mm |
| December | -3.7 °C | 11.6 °C | 14.48 mm |
| Annual | 6.3 °C | 23 °C | 411.49 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |