Tracy, CA 95376 Frost Dates
Tracy, CA: when does the frost end?
Around 01/19 is the usual last spring frost, about 144 days away. Fall's first freeze usually shows up around 12/10, roughly 330 days after the last spring frost.
Zone 9b (25 to 30°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 Tracy, not a forecast for this year.
Stretching the season past the first frost
With roughly 15 weeks until Tracy's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Tracy's last frost
01/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/25 and only about 1 year in 10 sees frost after that.
Tracy against the rest of the dataset
Tracy's growing season runs about 330 days, ranking 2,995 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,309 of 2,555.
Learn more
Before leaning on 95376's figures: the frost range explains how to read the range around Tracy's dates instead of trusting one, while local microclimates explains what one yard in Tracy can differ from the 95376 normal.