Dunnellon, FL 34431 Frost Dates
Frost dates for Dunnellon, FL, ZIP 34431
Around 02/03 is the usual last spring frost, about 159 days away. The first fall frost typically arrives around 01/03, about 329 frost-free days later.
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 Dunnellon, not a forecast for this year.
What to do before the first frost
Zone 9a around Dunnellon has about 18 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.
The actual range around Dunnellon's last frost
02/03 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. 03/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dunnellon compares
Dunnellon's growing season runs about 329 days, ranking 3,121 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,204 of 1,609.
Learn more
local microclimates explains what one yard in Dunnellon can differ from the 34431 normal, and zone vs. frost date explains why Zone 9a and Dunnellon's frost date answer different questions.