New Mexico frost dates

Across New Mexico, the average last spring frost is around April 20 and the average first fall frost around October 20 — roughly 183 frost-free days. USDA zones 4b, 5b, 6b, 7a, 7b, 8a, 9a.

Risk you accept	Last spring frost by	First fall frost by
Cautious (~10%)	May 4	October 6
Average (~50%)	April 20	October 20
Gambler (~90%)	April 6	November 3

New Mexico spans a wide range of elevations and climates — your town’s dates can differ from the state average by two weeks or more. Look up your exact ZIP.

→ Turn these into sowing dates with the New Mexico planting calendar, or look up an exact ZIP code.

Statewide average from NOAA/NCEI freeze normals. Cautious/gambler dates are about two weeks either side of the average.