King City, CA 93932 Frost Dates
King City, CA: when does the frost end?
Typically, the last spring freeze lands around 02/23, roughly 179 days out. Fall's first freeze usually shows up around 11/22, roughly 271 days after the last spring frost.
King City sits in USDA Zone 9a (20 to 25°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.
Stretching the season past the first frost
With roughly 12 weeks until King City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/23 isn't a guarantee
02/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/31 and only about 1 year in 10 sees frost after that.
King City against the rest of the dataset
King City's growing season runs about 271 days, ranking 5,426 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,882 of 2,555.
Learn more
Before leaning on 93932's figures: local microclimates explains what one yard in King City can differ from the 93932 normal, while zone vs. frost date explains why Zone 9a and King City's frost date answer different questions.