North Olmsted, OH 44070 Frost Dates
Frost dates for North Olmsted, OH, ZIP 44070
Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 11/03, about 198 frost-free days later.
The USDA Plant Hardiness Zone Map puts North Olmsted 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 North Olmsted has about 10 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
04/20 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. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How North Olmsted compares
North Olmsted's growing season runs about 198 days, ranking 18,286 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 86 of 1,383.
Learn more
the frost range explains how to read the range around North Olmsted's dates instead of trusting one, and local microclimates explains what one yard in North Olmsted can differ from the 44070 normal.