Lakeport, CA 95485 Frost Dates
Lakeport, CA: when does the frost end?
Typically, the last spring freeze lands around 03/05, roughly 189 days out. Fall's first freeze usually shows up around 11/21, roughly 259 days after the last spring frost.
Zone 9a (20 to 25°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 Lakeport, not a forecast for this year.
Stretching the season past the first frost
With roughly 12 weeks until Lakeport's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Lakeport's last frost
03/05 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 04/07 and only about 1 year in 10 sees frost after that.
Lakeport against the rest of the dataset
At roughly 259 frost-free days, Lakeport places 6,583 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,053 of 2,555.
Learn more
Before leaning on 95485's figures: the frost range explains how to read the range around Lakeport's dates instead of trusting one, while local microclimates explains what one yard in Lakeport can differ from the 95485 normal.