Port Hueneme, CA 93024 Frost Dates
93024, near Port Hueneme, CA: the frost window
Typically, the last spring freeze lands around 12/29, roughly 123 days out. Fall's first freeze usually shows up around 12/24, roughly 365 days after the last spring frost.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Port Hueneme, not a forecast for this year.
Stretching the season past the first frost
Port Hueneme's growing season runs out in roughly 17 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Port Hueneme's last frost
12/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/09 and only about 1 year in 10 sees frost after that.
Port Hueneme against the rest of the dataset
About 365 days separate Port Hueneme's last and first frost, putting it 1,215 of 40,283 ZIP codes nationally. Within CA, it ranks 533 of 2,555.
Learn more
Two guides worth reading on 93024: the frost range, on how to read the range around Port Hueneme's dates instead of trusting one, and local microclimates, on what one yard in Port Hueneme can differ from the 93024 normal.