What is the frost line for New Mexico?

The frost line is the average depth to which frost will penetrate into the ground. This is determined by a variety of factors, including soil type, moisture content, and the average air temperature. In New Mexico, the frost line can range from 4 to 12 inches. Warmer climates near coastal regions or closer to the equator will usually have shallower frost lines. Colder climates and areas with colder winters, especially those with lower groundwater levels, will often have deeper frost lines.