Novato, CA 94948 Frost Dates
Novato, CA: when does the frost end?
The last spring frost here typically falls around 02/28, about 184 days from today. Fall's first freeze usually shows up around 11/25, roughly 271 days after the last spring frost.
Zone 9b (25 to 30°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 Novato, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until Novato's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/28 isn't a guarantee
02/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Novato against the rest of the dataset
At roughly 271 frost-free days, Novato places 5,417 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,873 of 2,555.
Learn more
Before leaning on 94948's figures: the frost range explains how to read the range around Novato's dates instead of trusting one, while local microclimates explains what one yard in Novato can differ from the 94948 normal.