Las Vegas, NV 89147 Frost Dates
Frost dates for Las Vegas, NV, ZIP 89147
Around 02/04 is the usual last spring frost, about 160 days away. The first fall frost typically arrives around 12/05, about 302 frost-free days later.
Las Vegas sits in USDA Zone 9a (20 to 25°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 9a around Las Vegas has about 14 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
02/04 is the middle of 30 years of NOAA records, not a promise. Plant by 01/10 and you're betting against frost in roughly 9 years out of 10. 02/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Las Vegas compares
Las Vegas's growing season runs about 302 days, ranking 3,792 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 81 of 222.
Learn more
zone vs. frost date explains why Zone 9a 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.