Oldsmar, FL 33626 Frost Dates
Frost dates for Oldsmar, FL, ZIP 33626
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.
The actual range around Oldsmar's last frost
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
Oldsmar's growing season runs about 365 days, ranking 1,641 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 677 of 1,609.
Learn more
local microclimates explains what one yard in Oldsmar can differ from the 33626 normal, and zone vs. frost date explains why Zone 10a and Oldsmar's frost date answer different questions.