Hughson, CA 95328 Frost Dates
95328, near Hughson, CA: the frost window
The last spring frost here typically falls around 01/31, about 156 days from today. Fall's first freeze usually shows up around 12/05, roughly 312 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 Hughson, not a forecast for this year.
Stretching the season past the first frost
Hughson's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 01/31 isn't a guarantee
01/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/31 and only about 1 year in 10 sees frost after that.
Hughson against the rest of the dataset
At roughly 312 frost-free days, Hughson places 3,503 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,460 of 2,555.
Learn more
Two guides worth reading on 95328: local microclimates, on what one yard in Hughson can differ from the 95328 normal, and zone vs. frost date, on why Zone 9b and Hughson's frost date answer different questions.