Dexter, NM 88230 Frost Dates
Frost dates for Dexter, NM, ZIP 88230
Typically, the last spring freeze lands around 03/29, roughly 213 days out. The first fall frost typically arrives around 11/07, about 223 frost-free days later.
Dexter sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 7b around Dexter has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dexter compares
At roughly 223 frost-free days, Dexter places 12,100 of 40,283 ZIP codes in this dataset. Within NM, it ranks 59 of 427.
Learn more
the frost range explains how to read the range around Dexter's dates instead of trusting one, and local microclimates explains what one yard in Dexter can differ from the 88230 normal.