FrostDateCheck

Toledo, OH 43609 Frost Dates

Frost dates for Toledo, OH, ZIP 43609

Zone 6b

Typically, the last spring freeze lands around 04/20, roughly 235 days out. The first fall frost typically arrives around 10/27, about 188 frost-free days later.

Toledo sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.

What to do before the first frost

Zone 6b around Toledo 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.

The actual range around Toledo's last frost

04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Toledo compares

Toledo's growing season runs about 188 days, ranking 21,781 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 360 of 1,383.

Learn more

the frost range explains how to read the range around Toledo's dates instead of trusting one, and local microclimates explains what one yard in Toledo can differ from the 43609 normal.