Poway, CA 92165 Frost Dates
Poway, CA: when does the frost end?
The last spring frost here typically falls around 03/04, about 188 days from today. Fall's first freeze usually shows up around 12/04, roughly 270 days after the last spring frost.
Poway sits in USDA Zone 10b (35 to 40°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 Poway'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
03/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/10 and only about 1 year in 10 sees frost after that.
Poway against the rest of the dataset
About 270 days separate Poway's last and first frost, putting it 5,532 of 40,283 ZIP codes nationally. Within CA, it ranks 1,952 of 2,555.
Learn more
Before leaning on 92165's figures: local microclimates explains what one yard in Poway can differ from the 92165 normal, while zone vs. frost date explains why Zone 10b and Poway's frost date answer different questions.