Patterson, OH 45843 Frost Dates
45843, near Patterson, OH: the frost window
The last spring frost here typically falls around 04/22, about 237 days from today. Fall's first freeze usually shows up around 10/24, roughly 182 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Patterson, not a forecast for this year.
Stretching the season past the first frost
Patterson'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.
The actual range around Patterson's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 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.
Patterson against the rest of the dataset
About 182 days separate Patterson's last and first frost, putting it 24,361 of 40,283 ZIP codes nationally. Within OH, it ranks 753 of 1,383.
Learn more
Two guides worth reading on 45843: local microclimates, on what one yard in Patterson can differ from the 45843 normal, and zone vs. frost date, on why Zone 6a and Patterson's frost date answer different questions.