Lomita, CA 91716 Frost Dates
Frost dates for Lomita, CA, ZIP 91716
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.
Lomita sits in USDA Zone 10b (35 to 40°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
Zone 10b around Lomita has about 19 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 01/09 isn't a guarantee
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 1,451 of 40,283 ZIP codes in this dataset. Within CA, it ranks 736 of 2,555.
Learn more
local microclimates explains what one yard in Lomita can differ from the 91716 normal, and zone vs. frost date explains why Zone 10b and Lomita's frost date answer different questions.