Anna, OH 45302 Frost Dates
45302, near Anna, OH: the frost window
Typically, the last spring freeze lands around 04/27, roughly 242 days out. Fall's first freeze usually shows up around 10/20, roughly 175 days after the last spring frost.
Anna 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
Anna's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Anna against the rest of the dataset
Anna's growing season runs about 175 days, ranking 27,041 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,040 of 1,383.
Learn more
Two guides worth reading on 45302: zone vs. frost date, on why Zone 6a and Anna's frost date answer different questions, and the frost range, on how to read the range around Anna's dates instead of trusting one.