Mesilla, NM 88044 Frost Dates
When can you plant in Mesilla, NM?
Around 03/12 is the usual last spring frost, about 196 days away. The first fall frost typically arrives around 11/13, about 241 frost-free days later.
The USDA Plant Hardiness Zone Map puts Mesilla in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 11 weeks of growing season left in Mesilla before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/12 isn't a guarantee
03/12 is the middle of 30 years of NOAA records, not a promise. Plant by 02/23 and you're betting against frost in roughly 9 years out of 10. 04/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mesilla compares
Mesilla's growing season runs about 241 days, ranking 8,573 of 40,283 US ZIP codes measured here, longest to shortest. Within NM, it ranks 17 of 427.
Learn more
local microclimates covers what one yard in Mesilla can differ from the 88044 normal. zone vs. frost date covers why Zone 8b and Mesilla's frost date answer different questions.