Santa Rosa, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 42.3 °F (low) to 73.8 °F (high). Annual precipitation averages 14 Inches. Santa Rosa 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.2 °F | 54.4 °F | 0.43 in. |
| February | 26.7 °F | 58.3 °F | 0.37 in. |
| March | 32.7 °F | 65.9 °F | 0.87 in. |
| April | 39.4 °F | 73.5 °F | 0.8 in. |
| May | 49.2 °F | 82.3 °F | 1.23 in. |
| June | 58.3 °F | 91.5 °F | 1.49 in. |
| July | 63.0 °F | 93.0 °F | 2.1 in. |
| August | 61.4 °F | 91.0 °F | 2.24 in. |
| September | 54.3 °F | 84.5 °F | 1.76 in. |
| October | 42.2 °F | 74.5 °F | 1.29 in. |
| November | 31.4 °F | 63.0 °F | 0.66 in. |
| December | 24.6 °F | 53.8 °F | 0.71 in. |
| Annual | 42.3 °F | 73.8 °F | 13.95 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |