Roanoke, IN 46783 Frost Dates
When can you plant in Roanoke, IN?
Typically, the last spring freeze lands around 04/24, roughly 239 days out. The first fall frost typically arrives around 10/21, about 178 frost-free days later.
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.
What to do before the first frost
About 8 weeks of growing season left in Roanoke before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Roanoke compares
Roanoke's growing season runs about 178 days, ranking 25,764 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 592 of 927.
Learn more
the frost range covers how to read the range around Roanoke's dates instead of trusting one. local microclimates covers what one yard in Roanoke can differ from the 46783 normal.