Largo, FL 33771 Frost Dates
Frost dates for Largo, FL, ZIP 33771
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.
Largo sits in USDA Zone 10a (30 to 35°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 10a around Largo has about 20 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
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
Largo's growing season runs about 365 days, ranking 676 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 224 of 1,609.
Learn more
the frost range explains how to read the range around Largo's dates instead of trusting one, and local microclimates explains what one yard in Largo can differ from the 33771 normal.