Westerville, OH 43082 Frost Dates
Frost dates for Westerville, OH, ZIP 43082
Around 04/22 is the usual last spring frost, about 237 days away. The first fall frost typically arrives around 10/23, about 183 frost-free days later.
The USDA Plant Hardiness Zone Map puts Westerville 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
Zone 6b around Westerville has about 8 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 Westerville's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Westerville compares
At roughly 183 frost-free days, Westerville places 23,757 of 40,283 ZIP codes in this dataset. Within OH, it ranks 685 of 1,383.
Learn more
zone vs. frost date explains why Zone 6b and Westerville's frost date answer different questions, and the frost range explains how to read the range around Westerville's dates instead of trusting one.