Menifee, CA 92585 Frost Dates
Frost dates for Menifee, CA, ZIP 92585
The last spring frost here typically falls around 01/28, about 153 days from today. The first fall frost typically arrives around 12/18, about 329 frost-free days later.
The USDA Plant Hardiness Zone Map puts Menifee in Zone 9b (25 to 30°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 9b around Menifee 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 01/28 isn't a guarantee
01/28 is the middle of 30 years of NOAA records, not a promise. Plant by 02/27 and you're betting against frost in roughly 9 years out of 10. 12/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Menifee compares
At roughly 329 frost-free days, Menifee places 3,076 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,329 of 2,555.
Learn more
zone vs. frost date explains why Zone 9b and Menifee's frost date answer different questions, and the frost range explains how to read the range around Menifee's dates instead of trusting one.