Beverly Hills, CA 91423 Frost Dates
91423, near Beverly Hills, CA: the frost window
The last spring frost here typically falls around 12/31, about 125 days from today. Fall's first freeze usually shows up around 12/30, roughly 365 days after the last spring frost.
Zone 10a (30 to 35°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Beverly Hills, not a forecast for this year.
Stretching the season past the first frost
Beverly Hills's growing season runs out in roughly 18 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Beverly Hills's last frost
12/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/09 and only about 1 year in 10 sees frost after that.
Beverly Hills against the rest of the dataset
At roughly 365 frost-free days, Beverly Hills places 1,081 of 40,283 ZIP codes in this dataset. Within CA, it ranks 475 of 2,555.
Learn more
Two guides worth reading on 91423: local microclimates, on what one yard in Beverly Hills can differ from the 91423 normal, and zone vs. frost date, on why Zone 10a and Beverly Hills's frost date answer different questions.