Largo, FL 33733 Frost Dates
When can you plant in Largo, FL?
Typically, the last spring freeze lands around 01/17, roughly 142 days out. The first fall frost typically arrives around 01/14, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts Largo in Zone 10b (35 to 40°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 20 weeks of growing season left in Largo before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 01/17 isn't a guarantee
01/17 is the middle of 30 years of NOAA records, not a promise. Plant by 01/01 and you're betting against frost in roughly 9 years out of 10. 02/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Largo compares
About 365 days separate Largo's last and first frost, putting it 674 of 40,283 ZIP codes nationally. Within FL, it ranks 222 of 1,609.
Learn more
local microclimates covers what one yard in Largo can differ from the 33733 normal. zone vs. frost date covers why Zone 10b and Largo's frost date answer different questions.