Milan, NM 87357 Frost Dates
Frost dates for Milan, NM, ZIP 87357
Typically, the last spring freeze lands around 06/03, roughly 279 days out. The first fall frost typically arrives around 09/27, about 114 frost-free days later.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Milan, not a forecast for this year.
What to do before the first frost
Zone 5b around Milan has about 4 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.
The actual range around Milan's last frost
06/03 is the middle of 30 years of NOAA records, not a promise. Plant by 05/20 and you're betting against frost in roughly 9 years out of 10. 06/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Milan compares
At roughly 114 frost-free days, Milan places 39,358 of 40,283 ZIP codes in this dataset. Within NM, it ranks 400 of 427.
Learn more
local microclimates explains what one yard in Milan can differ from the 87357 normal, and zone vs. frost date explains why Zone 5b and Milan's frost date answer different questions.