FrostDateCheck

Yucca Valley, CA 92284 Frost Dates

Frost dates for Yucca Valley, CA, ZIP 92284

Zone 9a

The last spring frost here typically falls around 03/14, about 198 days from today. The first fall frost typically arrives around 11/28, about 255 frost-free days later.

The USDA Plant Hardiness Zone Map puts Yucca Valley in Zone 9a (20 to 25°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 9a around Yucca Valley has about 13 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 03/14 isn't a guarantee

03/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/08 and you're betting against frost in roughly 9 years out of 10. 04/01 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Yucca Valley compares

Yucca Valley's growing season runs about 255 days, ranking 6,895 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,069 of 2,555.

Learn more

the frost range explains how to read the range around Yucca Valley's dates instead of trusting one, and local microclimates explains what one yard in Yucca Valley can differ from the 92284 normal.