Shelburn, IN 47879 Frost Dates
Shelburn, IN: when does the frost end?
Around 04/08 is the usual last spring frost, about 223 days away. Fall's first freeze usually shows up around 10/27, roughly 201 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Shelburn 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
With roughly 9 weeks until Shelburn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/24 and only about 1 year in 10 sees frost after that.
Shelburn against the rest of the dataset
About 201 days separate Shelburn's last and first frost, putting it 17,579 of 40,283 ZIP codes nationally. Within IN, it ranks 104 of 927.
Learn more
Before leaning on 47879's figures: zone vs. frost date explains why Zone 6a and Shelburn's frost date answer different questions, while the frost range explains how to read the range around Shelburn's dates instead of trusting one.