Port Hueneme, CA 93061 Frost Dates
Frost dates for Port Hueneme, CA, ZIP 93061
The last spring frost here typically falls around 12/29, about 123 days from today. The first fall frost typically arrives around 12/24, about 365 frost-free days later.
Port Hueneme 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 Port Hueneme has about 17 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 12/29 isn't a guarantee
12/29 is the middle of 30 years of NOAA records, not a promise. Plant by 01/15 and you're betting against frost in roughly 9 years out of 10. 12/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Port Hueneme compares
About 365 days separate Port Hueneme's last and first frost, putting it 1,225 of 40,283 ZIP codes nationally. Within CA, it ranks 543 of 2,555.
Learn more
the frost range explains how to read the range around Port Hueneme's dates instead of trusting one, and local microclimates explains what one yard in Port Hueneme can differ from the 93061 normal.