Frost line depth in New Mexico
Estimated frost depth in typical soil runs from 9″ to 41″ across New Mexico's 33 counties. Pick your county or enter a ZIP code for a local estimate.
Deepest frost
- Taos County 41″
- Rio Arriba County 33″
- Colfax County 32″
- McKinley County 28″
- San Juan County 27″
Mildest
- Hidalgo County 9″
- Dona Ana County 9″
- Luna County 9″
- Lea County 10″
- Grant County 10″
Frost depth by county
| County | Est. frost (typical soil) | Typical code range |
|---|---|---|
| Bernalillo County | 18″ | 18–24″ |
| Catron County | 19″ | 18–24″ |
| Chaves County | 12″ | 12–18″ |
| Cibola County | 24″ | 24–30″ |
| Colfax County | 32″ | 30–42″ |
| Curry County | 13″ | 12–18″ |
| De Baca County | 13″ | 12–18″ |
| Dona Ana County | 9″ | 12–18″ |
| Eddy County | 11″ | 12–18″ |
| Grant County | 10″ | 12–18″ |
| Guadalupe County | 15″ | 12–18″ |
| Harding County | 19″ | 18–24″ |
| Hidalgo County | 9″ | 12–18″ |
| Lea County | 10″ | 12–18″ |
| Lincoln County | 14″ | 12–18″ |
| Los Alamos County | 25″ | 24–30″ |
| Luna County | 9″ | 12–18″ |
| McKinley County | 28″ | 24–36″ |
| Mora County | 26″ | 24–36″ |
| Otero County | 10″ | 12–18″ |
| Quay County | 14″ | 12–18″ |
| Rio Arriba County | 33″ | 30–42″ |
| Roosevelt County | 13″ | 12–18″ |
| San Juan County | 27″ | 24–36″ |
| San Miguel County | 20″ | 18–24″ |
| Sandoval County | 23″ | 18–30″ |
| Santa Fe County | 22″ | 18–30″ |
| Sierra County | 11″ | 12–18″ |
| Socorro County | 15″ | 12–18″ |
| Taos County | 41″ | 36–54″ |
| Torrance County | 19″ | 18–24″ |
| Union County | 20″ | 18–30″ |
| Valencia County | 20″ | 18–24″ |
Common questions
What is the frost line depth in New Mexico?
It ranges from about 9 inches in the mildest county to 41 inches in the coldest, in typical soil.
Which New Mexico county has the deepest frost?
Taos County, at about 41 inches in typical soil.