Cecil, OH 45821 Frost Dates
45821, near Cecil, OH: the frost window
Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/17, roughly 170 days after the last spring frost.
Cecil sits in USDA Zone 6a (-10 to -5°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
Cecil's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Cecil against the rest of the dataset
About 170 days separate Cecil's last and first frost, putting it 29,255 of 40,283 ZIP codes nationally. Within OH, it ranks 1,200 of 1,383.
Learn more
Two guides worth reading on 45821: local microclimates, on what one yard in Cecil can differ from the 45821 normal, and zone vs. frost date, on why Zone 6a and Cecil's frost date answer different questions.