Agoura Hills, CA 91377 Frost Dates
Agoura Hills, CA: when does the frost end?
Around 01/24 is the usual last spring frost, about 149 days away. Fall's first freeze usually shows up around 12/15, roughly 329 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Agoura Hills in Zone 10b (35 to 40°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 16 weeks until Agoura Hills'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
01/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/21 and only about 1 year in 10 sees frost after that.
Agoura Hills against the rest of the dataset
Agoura Hills's growing season runs about 329 days, ranking 3,094 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,346 of 2,555.
Learn more
Before leaning on 91377's figures: the frost range explains how to read the range around Agoura Hills's dates instead of trusting one, while local microclimates explains what one yard in Agoura Hills can differ from the 91377 normal.