Big Bear Lake, CA 92312 Frost Dates
When can you plant in Big Bear Lake, CA?
The last spring frost here typically falls around 05/27, about 272 days from today. The first fall frost typically arrives around 10/04, about 131 frost-free days later.
Big Bear Lake sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 5 weeks of growing season left in Big Bear Lake before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Big Bear Lake's last frost
05/27 is the middle of 30 years of NOAA records, not a promise. Plant by 05/06 and you're betting against frost in roughly 9 years out of 10. 06/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Big Bear Lake compares
At roughly 131 frost-free days, Big Bear Lake places 38,265 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,459 of 2,555.
Learn more
the frost range covers how to read the range around Big Bear Lake's dates instead of trusting one. local microclimates covers what one yard in Big Bear Lake can differ from the 92312 normal.