Winter Haven, FL 33888 Frost Dates
Frost dates for Winter Haven, FL, ZIP 33888
Around 01/15 is the usual last spring frost, about 140 days away. The first fall frost typically arrives around 01/10, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts Winter Haven in Zone 10a (30 to 35°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
Zone 10a around Winter Haven has about 19 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 01/15 isn't a guarantee
01/15 is the middle of 30 years of NOAA records, not a promise. Plant by 02/07 and you're betting against frost in roughly 9 years out of 10. 12/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Winter Haven compares
Winter Haven's growing season runs about 365 days, ranking 773 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 289 of 1,609.
Learn more
zone vs. frost date explains why Zone 10a and Winter Haven's frost date answer different questions, and the frost range explains how to read the range around Winter Haven's dates instead of trusting one.