Lathrop, CA 95267 Frost Dates
Lathrop, CA: when does the frost end?
Typically, the last spring freeze lands around 02/06, roughly 162 days out. Fall's first freeze usually shows up around 12/01, roughly 304 days after the last spring frost.
Lathrop sits in USDA Zone 9b (25 to 30°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
With roughly 14 weeks until Lathrop's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Lathrop's last frost
02/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 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.
Lathrop against the rest of the dataset
At roughly 304 frost-free days, Lathrop places 3,757 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,522 of 2,555.
Learn more
Before leaning on 95267's figures: the frost range explains how to read the range around Lathrop's dates instead of trusting one, while local microclimates explains what one yard in Lathrop can differ from the 95267 normal.