Kerman, CA 93630 Frost Dates
93630, near Kerman, CA: the frost window
Typically, the last spring freeze lands around 02/18, roughly 174 days out. Fall's first freeze usually shows up around 11/27, roughly 281 days after the last spring frost.
Zone 9a (20 to 25°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 Kerman, not a forecast for this year.
Stretching the season past the first frost
Kerman's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/18 isn't a guarantee
02/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/18 and only about 1 year in 10 sees frost after that.
Kerman against the rest of the dataset
About 281 days separate Kerman's last and first frost, putting it 4,788 of 40,283 ZIP codes nationally. Within CA, it ranks 1,767 of 2,555.
Learn more
Two guides worth reading on 93630: the frost range, on how to read the range around Kerman's dates instead of trusting one, and local microclimates, on what one yard in Kerman can differ from the 93630 normal.