Santa Clara, CA 95110 Frost Dates
Santa Clara, CA: when does the frost end?
Typically, the last spring freeze lands around 01/02, roughly 127 days out. Fall's first freeze usually shows up around 12/25, roughly 362 days after the last spring frost.
Zone 10a (30 to 35°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 Santa Clara, not a forecast for this year.
Stretching the season past the first frost
With roughly 17 weeks until Santa Clara's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Santa Clara's last frost
01/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/14 and only about 1 year in 10 sees frost after that.
Santa Clara against the rest of the dataset
Santa Clara's growing season runs about 362 days, ranking 2,059 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 945 of 2,555.
Learn more
Before leaning on 95110's figures: the frost range explains how to read the range around Santa Clara's dates instead of trusting one, while local microclimates explains what one yard in Santa Clara can differ from the 95110 normal.