Irondale, OH 43930 Frost Dates
When can you plant in Irondale, OH?
Around 04/22 is the usual last spring frost, about 237 days away. The first fall frost typically arrives around 10/28, about 186 frost-free days later.
The USDA Plant Hardiness Zone Map puts Irondale in Zone 6b (-5 to 0°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
About 9 weeks of growing season left in Irondale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Irondale's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Irondale compares
At roughly 186 frost-free days, Irondale places 22,928 of 40,283 ZIP codes in this dataset. Within OH, it ranks 518 of 1,383.
Learn more
local microclimates covers what one yard in Irondale can differ from the 43930 normal. zone vs. frost date covers why Zone 6b and Irondale's frost date answer different questions.