Capitan, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3.3 °C (low) to 20.3 °C (high). Annual precipitation averages 407.9 Millimeters. Capitan is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.2 °C | 10.4 °C | 14.99 mm |
| February | -3.6 °C | 12.4 °C | 13.72 mm |
| March | -1.2 °C | 16 °C | 14.73 mm |
| April | 1.7 °C | 20.2 °C | 10.92 mm |
| May | 6.3 °C | 24.8 °C | 24.13 mm |
| June | 10.9 °C | 29.8 °C | 39.12 mm |
| July | 13.1 °C | 29.4 °C | 84.58 mm |
| August | 12.4 °C | 28.3 °C | 83.31 mm |
| September | 9 °C | 25.6 °C | 59.44 mm |
| October | 3.2 °C | 21 °C | 27.94 mm |
| November | -1.8 °C | 15 °C | 14.22 mm |
| December | -4.9 °C | 10.2 °C | 20.83 mm |
| Annual | 3.3 °C | 20.3 °C | 407.93 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 |