Gibsonburg, OH 43431 Frost Dates
Frost dates for Gibsonburg, OH, ZIP 43431
Around 04/21 is the usual last spring frost, about 236 days away. The first fall frost typically arrives around 10/24, about 183 frost-free days later.
The USDA Plant Hardiness Zone Map puts Gibsonburg 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 Gibsonburg 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.
Why 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Gibsonburg compares
About 183 days separate Gibsonburg's last and first frost, putting it 23,872 of 40,283 ZIP codes nationally. Within OH, it ranks 701 of 1,383.
Learn more
zone vs. frost date explains why Zone 6b and Gibsonburg's frost date answer different questions, and the frost range explains how to read the range around Gibsonburg's dates instead of trusting one.