Clewiston, FL 33440 Frost Dates
Frost dates for Clewiston, FL, ZIP 33440
The last spring frost here typically falls around 01/25, about 150 days from today. The first fall frost typically arrives around 01/13, about 365 frost-free days later.
Clewiston 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 Clewiston 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.
The actual range around Clewiston's last frost
01/25 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. 02/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clewiston compares
At roughly 365 frost-free days, Clewiston places 1,751 of 40,283 ZIP codes in this dataset. Within FL, it ranks 713 of 1,609.
Learn more
the frost range explains how to read the range around Clewiston's dates instead of trusting one, and local microclimates explains what one yard in Clewiston can differ from the 33440 normal.