Huron, CA 93232 Frost Dates
93232, near Huron, CA: the frost window
The last spring frost here typically falls around 02/19, about 175 days from today. Fall's first freeze usually shows up around 11/29, 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 Huron, not a forecast for this year.
Stretching the season past the first frost
Huron'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.
The actual range around Huron's last frost
02/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/15 and only about 1 year in 10 sees frost after that.
Huron against the rest of the dataset
Huron's growing season runs about 281 days, ranking 4,801 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,773 of 2,555.
Learn more
Two guides worth reading on 93232: local microclimates, on what one yard in Huron can differ from the 93232 normal, and zone vs. frost date, on why Zone 9a and Huron's frost date answer different questions.