Lomita, CA 90508 Frost Dates
Frost dates for Lomita, CA, ZIP 90508
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.
Zone 10b (35 to 40°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Lomita, not a forecast for this year.
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.
The actual range around Lomita's last frost
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 1,322 of 40,283 ZIP codes in this dataset. Within CA, it ranks 607 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 90508 normal.