FrostDateCheck

Prospect, OH 43066 Frost Dates

Frost dates for Prospect, OH, ZIP 43066

Zone 6b

The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/20, about 178 frost-free days later.

The USDA Plant Hardiness Zone Map puts Prospect 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 Prospect has about 8 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.

Why 04/24 isn't a guarantee

04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/11 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 Prospect compares

About 178 days separate Prospect's last and first frost, putting it 25,818 of 40,283 ZIP codes nationally. Within OH, it ranks 872 of 1,383.

Learn more

zone vs. frost date explains why Zone 6b and Prospect's frost date answer different questions, and the frost range explains how to read the range around Prospect's dates instead of trusting one.