Lompoc, CA 93436 Frost Dates
93436, near Lompoc, CA: the frost window
Around 01/20 is the usual last spring frost, about 145 days away. Fall's first freeze usually shows up around 12/19, roughly 335 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lompoc in Zone 10a (30 to 35°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Lompoc's growing season runs out in roughly 16 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 Lompoc's last frost
01/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/16 and only about 1 year in 10 sees frost after that.
Lompoc against the rest of the dataset
Lompoc's growing season runs about 335 days, ranking 2,739 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,235 of 2,555.
Learn more
Two guides worth reading on 93436: the frost range, on how to read the range around Lompoc's dates instead of trusting one, and local microclimates, on what one yard in Lompoc can differ from the 93436 normal.