Terre Haute, IN 47802 Frost Dates
When can you plant in Terre Haute, IN?
Around 04/15 is the usual last spring frost, about 230 days away. The first fall frost typically arrives around 10/19, about 187 frost-free days later.
The USDA Plant Hardiness Zone Map puts Terre Haute 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 7 weeks of growing season left in Terre Haute 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
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Terre Haute compares
At roughly 187 frost-free days, Terre Haute places 22,273 of 40,283 ZIP codes in this dataset. Within IN, it ranks 292 of 927.
Learn more
zone vs. frost date covers why Zone 6a and Terre Haute's frost date answer different questions. the frost range covers how to read the range around Terre Haute's dates instead of trusting one.