Las Vegas, NV 89117 Frost Dates
89117, near Las Vegas, NV: the frost window
Typically, the last spring freeze lands around 01/24, roughly 149 days out. Fall's first freeze usually shows up around 12/10, roughly 323 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 15 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Las Vegas's last frost
01/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/27 and only about 1 year in 10 sees frost after that.
Las Vegas against the rest of the dataset
At roughly 323 frost-free days, Las Vegas places 3,240 of 40,283 ZIP codes in this dataset. Within NV, it ranks 54 of 222.
Learn more
Two guides worth reading on 89117: the frost range, on how to read the range around Las Vegas's dates instead of trusting one, and local microclimates, on what one yard in Las Vegas can differ from the 89117 normal.