Port Hueneme, CA 93005 Frost Dates
When can you plant in Port Hueneme, CA?
Typically, the last spring freeze lands around 12/29, roughly 123 days out. 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
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
Port Hueneme's growing season runs about 365 days, ranking 1,209 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 527 of 2,555.
Learn more
the frost range covers how to read the range around Port Hueneme's dates instead of trusting one. local microclimates covers what one yard in Port Hueneme can differ from the 93005 normal.