Rossford, OH 43551 Frost Dates
Rossford, OH: when does the frost end?
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/27, roughly 188 days after the last spring frost.
Rossford 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.
Stretching the season past the first frost
With roughly 9 weeks until Rossford's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Rossford against the rest of the dataset
About 188 days separate Rossford's last and first frost, putting it 21,971 of 40,283 ZIP codes nationally. Within OH, it ranks 376 of 1,383.
Learn more
Before leaning on 43551's figures: local microclimates explains what one yard in Rossford can differ from the 43551 normal, while zone vs. frost date explains why Zone 6b and Rossford's frost date answer different questions.