Las Vegas, NM 87742 Frost Dates
Frost dates for Las Vegas, NM, ZIP 87742
Typically, the last spring freeze lands around 05/10, roughly 255 days out. The first fall frost typically arrives around 10/07, about 149 frost-free days later.
The USDA Plant Hardiness Zone Map puts Las Vegas in Zone 6b (-5 to 0°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
Zone 6b around Las Vegas has about 6 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
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/28 and you're betting against frost in roughly 9 years out of 10. 05/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Las Vegas compares
About 149 days separate Las Vegas's last and first frost, putting it 35,492 of 40,283 ZIP codes nationally. Within NM, it ranks 274 of 427.
Learn more
zone vs. frost date explains why Zone 6b and Las Vegas's frost date answer different questions, and the frost range explains how to read the range around Las Vegas's dates instead of trusting one.