San Lorenzo, New Mexico has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 3.8 °C (low) to 22.3 °C (high). Annual precipitation averages 438.6 Millimeters. San Lorenzo is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °C | 12.2 °C | 29.46 mm |
| February | -3.6 °C | 14.3 °C | 23.11 mm |
| March | -1.2 °C | 17.9 °C | 17.27 mm |
| April | 1.7 °C | 22.1 °C | 7.62 mm |
| May | 6.1 °C | 26.7 °C | 8.13 mm |
| June | 11.1 °C | 31.9 °C | 23.62 mm |
| July | 14.7 °C | 31.7 °C | 83.06 mm |
| August | 14.1 °C | 30.3 °C | 98.3 mm |
| September | 10.2 °C | 27.8 °C | 56.13 mm |
| October | 4.1 °C | 23.2 °C | 28.19 mm |
| November | -1.7 °C | 16.9 °C | 28.19 mm |
| December | -4.8 °C | 12.2 °C | 35.56 mm |
| Annual | 3.8 °C | 22.3 °C | 438.64 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |