West Terre Haute, IN 62423 Frost Dates
Frost dates for West Terre Haute, IN, ZIP 62423
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 West 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 West 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 West 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 West Terre Haute compares
West Terre Haute's growing season runs about 187 days, ranking 22,414 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 312 of 927.
Learn more
the frost range explains how to read the range around West Terre Haute's dates instead of trusting one, and local microclimates explains what one yard in West Terre Haute can differ from the 62423 normal.