Big Bear Lake, CA 92333 Frost Dates
Big Bear Lake, CA: when does the frost end?
The last spring frost here typically falls around 05/27, about 272 days from today. Fall's first freeze usually shows up around 10/04, roughly 131 days after the last spring frost.
Zone 7a (0 to 5°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 Big Bear Lake, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Big Bear Lake'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
05/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/09 and only about 1 year in 10 sees frost after that.
Big Bear Lake against the rest of the dataset
About 131 days separate Big Bear Lake's last and first frost, putting it 38,268 of 40,283 ZIP codes nationally. Within CA, it ranks 2,462 of 2,555.
Learn more
Before leaning on 92333's figures: the frost range explains how to read the range around Big Bear Lake's dates instead of trusting one, while local microclimates explains what one yard in Big Bear Lake can differ from the 92333 normal.