Mayfield Heights, OH 44124 Frost Dates
Frost dates for Mayfield Heights, OH, ZIP 44124
Typically, the last spring freeze lands around 04/08, roughly 223 days out. The first fall frost typically arrives around 11/12, about 217 frost-free days later.
Zone 6a (-10 to -5°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 Mayfield Heights, not a forecast for this year.
What to do before the first frost
Zone 6a around Mayfield Heights has about 11 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.
How much risk comes with planting early here
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/29 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mayfield Heights compares
Mayfield Heights's growing season runs about 217 days, ranking 13,425 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 14 of 1,383.
Learn more
zone vs. frost date explains why Zone 6a and Mayfield Heights's frost date answer different questions, and the frost range explains how to read the range around Mayfield Heights's dates instead of trusting one.