Santa Teresa, New Mexico has a Cold Desert Climate climate (Köppen classification: BWk). Average annual temperatures range from 50.3 °F (low) to 78.9 °F (high). Annual precipitation averages 8.6 Inches. Santa Teresa is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 31.0 °F | 59.1 °F | 0.44 in. |
| February | 35.2 °F | 64.5 °F | 0.45 in. |
| March | 41.9 °F | 72.2 °F | 0.29 in. |
| April | 48.3 °F | 79.9 °F | 0.18 in. |
| May | 57.0 °F | 88.7 °F | 0.18 in. |
| June | 66.8 °F | 97.2 °F | 0.51 in. |
| July | 70.3 °F | 96.3 °F | 1.35 in. |
| August | 69.2 °F | 93.9 °F | 1.73 in. |
| September | 62.7 °F | 88.7 °F | 1.77 in. |
| October | 51.2 °F | 80.0 °F | 0.69 in. |
| November | 38.8 °F | 68.3 °F | 0.31 in. |
| December | 31.1 °F | 58.5 °F | 0.7 in. |
| Annual | 50.3 °F | 78.9 °F | 8.6 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BWk - Cold Desert Climate |