Lomita, CA 90410 Frost Dates
When can you plant in Lomita, CA?
Typically, the last spring freeze lands around 01/09, roughly 134 days out. The first fall frost typically arrives around 01/05, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lomita in Zone 11a (40 to 45°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 19 weeks of growing season left in Lomita before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
01/09 is the middle of 30 years of NOAA records, not a promise. Plant by 02/24 and you're betting against frost in roughly 9 years out of 10. 12/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lomita compares
At roughly 365 frost-free days, Lomita places 1,318 of 40,283 ZIP codes in this dataset. Within CA, it ranks 603 of 2,555.
Learn more
local microclimates covers what one yard in Lomita can differ from the 90410 normal. zone vs. frost date covers why Zone 11a and Lomita's frost date answer different questions.