Las Vegas, NV 89125 Frost Dates
Frost dates for Las Vegas, NV, ZIP 89125
Typically, the last spring freeze lands around 01/24, roughly 149 days out. The first fall frost typically arrives around 12/10, about 323 frost-free days later.
The USDA Plant Hardiness Zone Map puts Las Vegas in Zone 9b (25 to 30°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 9b around Las Vegas has about 15 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 Las Vegas's last frost
01/24 is the middle of 30 years of NOAA records, not a promise. Plant by 02/19 and you're betting against frost in roughly 9 years out of 10. 12/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Las Vegas compares
About 323 days separate Las Vegas's last and first frost, putting it 3,241 of 40,283 ZIP codes nationally. Within NV, it ranks 55 of 222.
Learn more
zone vs. frost date explains why Zone 9b 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.