Fernley, NV 89408 Frost Dates
Frost dates for Fernley, NV, ZIP 89408
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/25, about 188 frost-free days later.
The USDA Plant Hardiness Zone Map puts Fernley in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 7a around Fernley has about 8 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 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fernley compares
Fernley's growing season runs about 188 days, ranking 21,858 of 40,283 US ZIP codes measured here, longest to shortest. Within NV, it ranks 126 of 222.
Learn more
local microclimates explains what one yard in Fernley can differ from the 89408 normal, and zone vs. frost date explains why Zone 7a and Fernley's frost date answer different questions.