Sheridan, IN 46069 Frost Dates
When can you plant in Sheridan, IN?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. The first fall frost typically arrives around 10/26, about 190 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sheridan 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 Sheridan before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sheridan compares
Sheridan's growing season runs about 190 days, ranking 21,167 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 264 of 927.
Learn more
local microclimates covers what one yard in Sheridan can differ from the 46069 normal. zone vs. frost date covers why Zone 6a and Sheridan's frost date answer different questions.