Palmdale, CA 93551 Frost Dates
Palmdale, CA: when does the frost end?
The last spring frost here typically falls around 03/10, about 194 days from today. Fall's first freeze usually shows up around 11/19, roughly 248 days after the last spring frost.
Palmdale sits in USDA Zone 9a (20 to 25°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 12 weeks until Palmdale's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/10 isn't a guarantee
03/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/11 and only about 1 year in 10 sees frost after that.
Palmdale against the rest of the dataset
At roughly 248 frost-free days, Palmdale places 7,675 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,099 of 2,555.
Learn more
Before leaning on 93551's figures: local microclimates explains what one yard in Palmdale can differ from the 93551 normal, while zone vs. frost date explains why Zone 9a and Palmdale's frost date answer different questions.