Manchester, OH 41189 Frost Dates
Frost dates for Manchester, OH, ZIP 41189
Typically, the last spring freeze lands around 04/12, roughly 227 days out. The first fall frost typically arrives around 10/30, about 200 frost-free days later.
The USDA Plant Hardiness Zone Map puts Manchester 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 Manchester 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.
How much risk comes with planting early here
04/12 is the middle of 30 years of NOAA records, not a promise. Plant by 03/27 and you're betting against frost in roughly 9 years out of 10. 05/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Manchester compares
Manchester's growing season runs about 200 days, ranking 17,818 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 69 of 1,383.
Learn more
zone vs. frost date explains why Zone 6b and Manchester's frost date answer different questions, and the frost range explains how to read the range around Manchester's dates instead of trusting one.