Wildomar, CA 92595 Frost Dates
Wildomar, CA: when does the frost end?
Typically, the last spring freeze lands around 01/28, roughly 153 days out. Fall's first freeze usually shows up around 12/18, roughly 329 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Wildomar in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 16 weeks until Wildomar's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
01/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/24 and only about 1 year in 10 sees frost after that.
Wildomar against the rest of the dataset
Wildomar's growing season runs about 329 days, ranking 3,087 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,340 of 2,555.
Learn more
Before leaning on 92595's figures: zone vs. frost date explains why Zone 9b and Wildomar's frost date answer different questions, while the frost range explains how to read the range around Wildomar's dates instead of trusting one.