Lomita, CA 91046 Frost Dates
Frost dates for Lomita, CA, ZIP 91046
The last spring frost here typically falls around 01/09, about 134 days from today. 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 10a (30 to 35°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
Zone 10a 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.
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
About 365 days separate Lomita's last and first frost, putting it 1,362 of 40,283 ZIP codes nationally. Within CA, it ranks 647 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 91046 normal.