Corte Madera, CA 94925 Frost Dates
94925, near Corte Madera, CA: the frost window
Around 01/16 is the usual last spring frost, about 141 days away. Fall's first freeze usually shows up around 12/18, roughly 334 days after the last spring frost.
Corte Madera sits in USDA Zone 10a (30 to 35°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
Corte Madera's growing season runs out in roughly 16 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 Corte Madera's last frost
01/16 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 12/21 and only about 1 year in 10 sees frost after that.
Corte Madera against the rest of the dataset
At roughly 334 frost-free days, Corte Madera places 2,795 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,277 of 2,555.
Learn more
Two guides worth reading on 94925: local microclimates, on what one yard in Corte Madera can differ from the 94925 normal, and zone vs. frost date, on why Zone 10a and Corte Madera's frost date answer different questions.