Woodside, CA 94011 Frost Dates
94011, near Woodside, CA: the frost window
Typically, the last spring freeze lands around 03/02, roughly 186 days out. Fall's first freeze usually shows up around 11/25, roughly 268 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 Woodside, not a forecast for this year.
Stretching the season past the first frost
Woodside'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 03/02 isn't a guarantee
03/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 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.
Woodside against the rest of the dataset
Woodside's growing season runs about 268 days, ranking 5,755 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,980 of 2,555.
Learn more
Two guides worth reading on 94011: the frost range, on how to read the range around Woodside's dates instead of trusting one, and local microclimates, on what one yard in Woodside can differ from the 94011 normal.