Lomita, CA 90081 Frost Dates
Frost dates for Lomita, CA, ZIP 90081
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
About 365 days separate Lomita's last and first frost, putting it 1,280 of 40,283 ZIP codes nationally. Within CA, it ranks 565 of 2,555.
Learn more
the frost range explains how to read the range around Lomita's dates instead of trusting one, and local microclimates explains what one yard in Lomita can differ from the 90081 normal.