Jefferson, OH 44082 Frost Dates
44082, near Jefferson, OH: the frost window
The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/21, roughly 171 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 Jefferson, not a forecast for this year.
Stretching the season past the first frost
Jefferson'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 Jefferson's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Jefferson against the rest of the dataset
Jefferson's growing season runs about 171 days, ranking 28,655 of 40,283 US ZIP codes measured here, longest to shortest. Within OH, it ranks 1,134 of 1,383.
Learn more
Two guides worth reading on 44082: local microclimates, on what one yard in Jefferson can differ from the 44082 normal, and zone vs. frost date, on why Zone 6a and Jefferson's frost date answer different questions.