Frost dates · New Mexico
New Mexico frost dates,
county by county.
Last spring frost and first fall frost probability data for all 33 counties in New Mexico, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.
Variation across New Mexico
91 days separate the earliest and latest counties.
The median last spring frost in Doña Ana County is February 26 — 91 days earlier than Rio Arriba County at May 28. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.
By frost timing
Counties sorted by last spring frost.
Latest at top, earliest at bottom. In most states this matches the north-to-south gradient.
- Rio Arriba CountySpring May 28·Fall Sep 26121-day season
- McKinley CountySpring May 26·Fall Oct 1128-day season
- Taos CountySpring May 18·Fall Oct 3138-day season
- Catron CountySpring May 13·Fall Oct 12152-day season
- Colfax CountySpring May 5·Fall Oct 8156-day season
- Mora CountySpring May 5·Fall Oct 9157-day season
- Otero CountySpring May 5·Fall Oct 13161-day season
- Torrance CountySpring May 5·Fall Oct 10158-day season
- Cibola CountySpring May 4·Fall Oct 11160-day season
- San Miguel CountySpring May 1·Fall Oct 16168-day season
- Grant CountySpring Apr 28·Fall Oct 25180-day season
- Sandoval CountySpring Apr 26·Fall Oct 21178-day season
- Union CountySpring Apr 26·Fall Oct 17174-day season
- Harding CountySpring Apr 24·Fall Oct 20179-day season
- Lincoln CountySpring Apr 24·Fall Oct 24183-day season
- Santa Fe CountySpring Apr 22·Fall Oct 27188-day season
- Los Alamos CountySpring Apr 20·Fall Oct 23186-day season
- San Juan CountySpring Apr 17·Fall Oct 26192-day season
- Curry CountySpring Apr 8·Fall Nov 2208-day season
- Valencia CountySpring Apr 8·Fall Oct 31206-day season
- Roosevelt CountySpring Apr 7·Fall Nov 1208-day season
- Guadalupe CountySpring Apr 4·Fall Nov 1211-day season
- Quay CountySpring Apr 4·Fall Nov 4214-day season
- De Baca CountySpring Apr 3·Fall Nov 3214-day season
- Bernalillo CountySpring Mar 31·Fall Nov 2216-day season
- Socorro CountySpring Mar 31·Fall Nov 3217-day season
- Luna CountySpring Mar 16·Fall Nov 13242-day season
- Hidalgo CountySpring Mar 11·Fall Nov 18252-day season
- Chaves CountySpring Mar 10·Fall Nov 16251-day season
- Lea CountySpring Mar 10·Fall Nov 23258-day season
- Eddy CountySpring Mar 5·Fall Nov 18258-day season
- Sierra CountySpring Mar 1·Fall Nov 26270-day season
- Doña Ana CountySpring Feb 26·Fall Nov 24271-day season
Alphabetical
All New Mexico counties — A to Z.
- Bernalillo County
- Catron County
- Chaves County
- Cibola County
- Colfax County
- Curry County
- De Baca County
- Doña Ana County
- Eddy County
- Grant County
- Guadalupe County
- Harding County
- Hidalgo County
- Lea County
- Lincoln County
- Los Alamos County
- Luna County
- McKinley County
- Mora County
- Otero County
- Quay County
- Rio Arriba County
- Roosevelt County
- San Juan County
- San Miguel County
- Sandoval County
- Santa Fe County
- Sierra County
- Socorro County
- Taos County
- Torrance County
- Union County
- Valencia County