King City, CA 93930 Frost Dates
93930, near King City, CA: the frost window
Around 02/23 is the usual last spring frost, about 179 days away. Fall's first freeze usually shows up around 11/22, roughly 271 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts King City in Zone 9a (20 to 25°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
King City's growing season runs out in roughly 12 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 King City's last frost
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
About 271 days separate King City's last and first frost, putting it 5,425 of 40,283 ZIP codes nationally. Within CA, it ranks 1,881 of 2,555.
Learn more
Two guides worth reading on 93930: the frost range, on how to read the range around King City's dates instead of trusting one, and local microclimates, on what one yard in King City can differ from the 93930 normal.