Henderson, NV 89183 Frost Dates
89183, near Henderson, 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.
The USDA Plant Hardiness Zone Map puts Henderson in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Henderson'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.
Why 02/04 isn't a guarantee
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.
Henderson against the rest of the dataset
Henderson's growing season runs about 302 days, ranking 3,802 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 91 of 222.
Learn more
Two guides worth reading on 89183: the frost range, on how to read the range around Henderson's dates instead of trusting one, and local microclimates, on what one yard in Henderson can differ from the 89183 normal.