Henderson, NV 89170 Frost Dates
Henderson, NV: when does the frost end?
Around 01/21 is the usual last spring frost, about 146 days away. Fall's first freeze usually shows up around 12/17, roughly 328 days after the last spring frost.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Henderson, not a forecast for this year.
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.
How much risk comes with planting early here
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
About 328 days separate Henderson's last and first frost, putting it 3,164 of 40,283 ZIP codes nationally. Within NV, it ranks 40 of 222.
Learn more
Before leaning on 89170's figures: local microclimates explains what one yard in Henderson can differ from the 89170 normal, while zone vs. frost date explains why Zone 9b and Henderson's frost date answer different questions.