Henderson, NV 89185 Frost Dates
Henderson, NV: when does the frost end?
Typically, the last spring freeze lands around 01/21, roughly 146 days out. Fall's first freeze usually shows up around 12/17, roughly 328 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Henderson in Zone 9b (25 to 30°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
With roughly 16 weeks until Henderson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Henderson's last frost
01/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/29 and only about 1 year in 10 sees frost after that.
Henderson against the rest of the dataset
Henderson's growing season runs about 328 days, ranking 3,168 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 44 of 222.
Learn more
Before leaning on 89185's figures: the frost range explains how to read the range around Henderson's dates instead of trusting one, while local microclimates explains what one yard in Henderson can differ from the 89185 normal.