Las Vegas, NV 89148 Frost Dates
89148, near Las Vegas, NV: the frost window
Around 02/04 is the usual last spring frost, about 160 days away. Fall's first freeze usually shows up around 12/05, roughly 302 days after the last spring frost.
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.
Stretching the season past the first frost
Las Vegas's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
02/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 02/27 and only about 1 year in 10 sees frost after that.
Las Vegas against the rest of the dataset
At roughly 302 frost-free days, Las Vegas places 3,793 of 40,283 ZIP codes in this dataset. Within NV, it ranks 82 of 222.
Learn more
Two guides worth reading on 89148: local microclimates, on what one yard in Las Vegas can differ from the 89148 normal, and zone vs. frost date, on why Zone 9a and Las Vegas's frost date answer different questions.