Hagerstown, IN 47346 Frost Dates
47346, near Hagerstown, IN: the frost window
Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/09, roughly 164 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hagerstown in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Hagerstown's growing season runs out in roughly 6 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 Hagerstown's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
Hagerstown against the rest of the dataset
Hagerstown's growing season runs about 164 days, ranking 31,008 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 876 of 927.
Learn more
Two guides worth reading on 47346: local microclimates, on what one yard in Hagerstown can differ from the 47346 normal, and zone vs. frost date, on why Zone 6a and Hagerstown's frost date answer different questions.