Oldsmar, FL 33635 Frost Dates
Frost dates for Oldsmar, FL, ZIP 33635
The last spring frost here typically falls around 01/20, about 145 days from today. The first fall frost typically arrives around 01/12, about 365 frost-free days later.
Zone 10a (30 to 35°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 Oldsmar, not a forecast for this year.
What to do before the first frost
Zone 10a around Oldsmar 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 01/20 isn't a guarantee
01/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/10 and you're betting against frost in roughly 9 years out of 10. 12/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oldsmar compares
About 365 days separate Oldsmar's last and first frost, putting it 1,642 of 40,283 ZIP codes nationally. Within FL, it ranks 678 of 1,609.
Learn more
zone vs. frost date explains why Zone 10a and Oldsmar's frost date answer different questions, and the frost range explains how to read the range around Oldsmar's dates instead of trusting one.