Lomita, CA 91802 Frost Dates
Frost dates for Lomita, CA, ZIP 91802
Around 01/09 is the usual last spring frost, about 134 days away. 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.
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
About 365 days separate Lomita's last and first frost, putting it 1,463 of 40,283 ZIP codes nationally. Within CA, it ranks 748 of 2,555.
Learn more
zone vs. frost date explains why Zone 10a and Lomita's frost date answer different questions, and the frost range explains how to read the range around Lomita's dates instead of trusting one.