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 geography
New Mexico counties on the map.
Each polygon is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.
MapList
Last spring frostEarliestMedianLatest
33 counties · click any county for full frost data