Henderson, NV 89173 Frost Dates
When can you plant in Henderson, NV?
Typically, the last spring freeze lands around 01/21, roughly 146 days out. The first fall frost typically arrives around 12/17, about 328 frost-free days later.
Zone 9a (20 to 25°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.
What to do before the first frost
About 16 weeks of growing season left in Henderson before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Henderson's last frost
01/21 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 12/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Henderson compares
Henderson's growing season runs about 328 days, ranking 3,165 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 41 of 222.
Learn more
zone vs. frost date covers why Zone 9a and Henderson's frost date answer different questions. the frost range covers how to read the range around Henderson's dates instead of trusting one.