Yorkville, OH 43971 Frost Dates
Frost dates for Yorkville, OH, ZIP 43971
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 11/01, about 196 frost-free days later.
The USDA Plant Hardiness Zone Map puts Yorkville 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 Yorkville has about 9 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 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 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 Yorkville compares
Yorkville's growing season runs about 196 days, ranking 19,029 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 118 of 1,383.
Learn more
local microclimates explains what one yard in Yorkville can differ from the 43971 normal, and zone vs. frost date explains why Zone 6b and Yorkville's frost date answer different questions.