FrostDateCheck

New Miami, OH 45011 Frost Dates

When can you plant in New Miami, OH?

Zone 6b

The last spring frost here typically falls around 04/22, about 237 days from today. The first fall frost typically arrives around 10/18, about 178 frost-free days later.

The USDA Plant Hardiness Zone Map puts New Miami 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

About 7 weeks of growing season left in New Miami before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/22 isn't a guarantee

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. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.

How New Miami compares

New Miami's growing season runs about 178 days, ranking 25,749 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 857 of 1,383.

Learn more

the frost range covers how to read the range around New Miami's dates instead of trusting one. local microclimates covers what one yard in New Miami can differ from the 45011 normal.