Chula Vista, CA 92179 Frost Dates
Chula Vista, CA: when does the frost end?
The last spring frost here typically falls around 01/06, about 131 days from today. Fall's first freeze usually shows up around 12/31, roughly 365 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Chula Vista in Zone 10b (35 to 40°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 18 weeks until Chula Vista's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Chula Vista's last frost
01/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/13 and only about 1 year in 10 sees frost after that.
Chula Vista against the rest of the dataset
Chula Vista's growing season runs about 365 days, ranking 309 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 102 of 2,555.
Learn more
Before leaning on 92179's figures: the frost range explains how to read the range around Chula Vista's dates instead of trusting one, while local microclimates explains what one yard in Chula Vista can differ from the 92179 normal.