South Valley, New Mexico has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 40.9 °F (low) to 72.6 °F (high). Annual precipitation averages 9 Inches. South Valley is located in USDA Plant Hardiness Zone 7b. 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 | 21.9 °F | 51.0 °F | 0.38 in. |
| February | 25.6 °F | 56.9 °F | 0.46 in. |
| March | 31.9 °F | 65.2 °F | 0.52 in. |
| April | 38.8 °F | 72.5 °F | 0.57 in. |
| May | 47.0 °F | 81.1 °F | 0.43 in. |
| June | 56.9 °F | 91.8 °F | 0.52 in. |
| July | 62.4 °F | 93.4 °F | 1.42 in. |
| August | 61.9 °F | 91.1 °F | 1.39 in. |
| September | 52.6 °F | 84.7 °F | 1.24 in. |
| October | 40.4 °F | 73.2 °F | 0.92 in. |
| November | 28.7 °F | 60.5 °F | 0.55 in. |
| December | 22.2 °F | 50.0 °F | 0.57 in. |
| Annual | 40.9 °F | 72.6 °F | 8.97 in. |
| 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BWk - Cold Desert Climate |