Port Hueneme, CA 93034 Frost Dates
When can you plant in Port Hueneme, CA?
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.
The USDA Plant Hardiness Zone Map puts Port Hueneme in Zone 10b (35 to 40°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
About 17 weeks of growing season left in Port Hueneme before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
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 1,219 of 40,283 ZIP codes nationally. Within CA, it ranks 537 of 2,555.
Learn more
zone vs. frost date covers why Zone 10b and Port Hueneme's frost date answer different questions. the frost range covers how to read the range around Port Hueneme's dates instead of trusting one.