Roanoke, IN 46814 Frost Dates
Roanoke, IN: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/21, roughly 178 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Roanoke 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 8 weeks until Roanoke's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Roanoke's last frost
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 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.
Roanoke against the rest of the dataset
Roanoke's growing season runs about 178 days, ranking 25,765 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 593 of 927.
Learn more
Before leaning on 46814's figures: local microclimates explains what one yard in Roanoke can differ from the 46814 normal, while zone vs. frost date explains why Zone 6a and Roanoke's frost date answer different questions.