Arcadia, CA 91007 Frost Dates
Frost dates for Arcadia, CA, ZIP 91007
Typically, the last spring freeze lands around 01/04, roughly 129 days out. The first fall frost typically arrives around 01/02, about 365 frost-free days later.
Arcadia sits in USDA Zone 10a (30 to 35°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 10a around Arcadia has about 18 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 01/04 isn't a guarantee
01/04 is the middle of 30 years of NOAA records, not a promise. Plant by 01/28 and you're betting against frost in roughly 9 years out of 10. 12/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Arcadia compares
At roughly 365 frost-free days, Arcadia places 833 of 40,283 ZIP codes in this dataset. Within CA, it ranks 345 of 2,555.
Learn more
local microclimates explains what one yard in Arcadia can differ from the 91007 normal, and zone vs. frost date explains why Zone 10a and Arcadia's frost date answer different questions.