Terre Haute, IN 47808 Frost Dates
Frost dates for Terre Haute, IN, ZIP 47808
Typically, the last spring freeze lands around 04/15, roughly 230 days out. 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
Zone 6a around Terre Haute has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Terre Haute's last frost
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
About 187 days separate Terre Haute's last and first frost, putting it 22,277 of 40,283 ZIP codes nationally. Within IN, it ranks 296 of 927.
Learn more
the frost range explains how to read the range around Terre Haute's dates instead of trusting one, and local microclimates explains what one yard in Terre Haute can differ from the 47808 normal.