Longboat Key, FL 34210 Frost Dates
When can you plant in Longboat Key, FL?
The last spring frost here typically falls around 01/15, about 140 days from today. The first fall frost typically arrives around 01/10, about 365 frost-free days later.
Zone 10a (30 to 35°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 Longboat Key, not a forecast for this year.
What to do before the first frost
About 19 weeks of growing season left in Longboat Key before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 01/15 isn't a guarantee
01/15 is the middle of 30 years of NOAA records, not a promise. Plant by 02/08 and you're betting against frost in roughly 9 years out of 10. 12/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Longboat Key compares
About 365 days separate Longboat Key's last and first frost, putting it 1,752 of 40,283 ZIP codes nationally. Within FL, it ranks 714 of 1,609.
Learn more
local microclimates covers what one yard in Longboat Key can differ from the 34210 normal. zone vs. frost date covers why Zone 10a and Longboat Key's frost date answer different questions.