Tehachapi, CA 93561 Frost Dates
Tehachapi, CA: when does the frost end?
Around 03/15 is the usual last spring frost, about 199 days away. Fall's first freeze usually shows up around 11/17, roughly 241 days after the last spring frost.
Zone 8b (15 to 20°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 Tehachapi, not a forecast for this year.
Stretching the season past the first frost
With roughly 12 weeks until Tehachapi's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/17 and only about 1 year in 10 sees frost after that.
Tehachapi against the rest of the dataset
About 241 days separate Tehachapi's last and first frost, putting it 8,532 of 40,283 ZIP codes nationally. Within CA, it ranks 2,119 of 2,555.
Learn more
Before leaning on 93561's figures: local microclimates explains what one yard in Tehachapi can differ from the 93561 normal, while zone vs. frost date explains why Zone 8b and Tehachapi's frost date answer different questions.