Henderson, NV 89122 Frost Dates
Frost dates for Henderson, NV, ZIP 89122
The last spring frost here typically falls around 01/20, about 145 days from today. The first fall frost typically arrives around 12/15, about 333 frost-free days later.
Henderson sits in USDA Zone 9b (25 to 30°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.
What to do before the first frost
Zone 9b around Henderson has about 16 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 01/20 isn't a guarantee
01/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/14 and you're betting against frost in roughly 9 years out of 10. 12/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Henderson compares
About 333 days separate Henderson's last and first frost, putting it 2,812 of 40,283 ZIP codes nationally. Within NV, it ranks 10 of 222.
Learn more
zone vs. frost date explains why Zone 9b and Henderson's frost date answer different questions, and the frost range explains how to read the range around Henderson's dates instead of trusting one.