Pinole, CA 94564 Frost Dates
94564, near Pinole, CA: the frost window
Typically, the last spring freeze lands around 01/04, roughly 129 days out. Fall's first freeze usually shows up around 01/02, roughly 365 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Pinole in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Pinole's growing season runs out in roughly 18 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
01/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/26 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.
Pinole against the rest of the dataset
About 365 days separate Pinole's last and first frost, putting it 1,488 of 40,283 ZIP codes nationally. Within CA, it ranks 765 of 2,555.
Learn more
Two guides worth reading on 94564: local microclimates, on what one yard in Pinole can differ from the 94564 normal, and zone vs. frost date, on why Zone 9b and Pinole's frost date answer different questions.