New Carlisle, IN 46371 Frost Dates
Frost dates for New Carlisle, IN, ZIP 46371
Around 04/19 is the usual last spring frost, about 234 days away. The first fall frost typically arrives around 10/27, about 191 frost-free days later.
The USDA Plant Hardiness Zone Map puts New Carlisle 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 New Carlisle has about 9 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.
How much risk comes with planting early here
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/05 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 New Carlisle compares
At roughly 191 frost-free days, New Carlisle places 20,792 of 40,283 ZIP codes in this dataset. Within IN, it ranks 236 of 927.
Learn more
zone vs. frost date explains why Zone 6a and New Carlisle's frost date answer different questions, and the frost range explains how to read the range around New Carlisle's dates instead of trusting one.