Huron, CA 93234 Frost Dates
Huron, CA: when does the frost end?
Typically, the last spring freeze lands around 02/24, roughly 180 days out. Fall's first freeze usually shows up around 11/22, roughly 265 days after the last spring frost.
Huron sits in USDA Zone 9b (25 to 30°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 Huron's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/24 isn't a guarantee
02/24 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 03/30 and only about 1 year in 10 sees frost after that.
Huron against the rest of the dataset
At roughly 265 frost-free days, Huron places 5,980 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,001 of 2,555.
Learn more
Before leaning on 93234's figures: the frost range explains how to read the range around Huron's dates instead of trusting one, while local microclimates explains what one yard in Huron can differ from the 93234 normal.