Carlisle, IN 47838 Frost Dates
Frost dates for Carlisle, IN, ZIP 47838
The last spring frost here typically falls around 04/09, about 224 days from today. The first fall frost typically arrives around 10/30, about 202 frost-free days later.
Carlisle sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 6b around 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
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Carlisle compares
About 202 days separate Carlisle's last and first frost, putting it 17,325 of 40,283 ZIP codes nationally. Within IN, it ranks 87 of 927.
Learn more
zone vs. frost date explains why Zone 6b and Carlisle's frost date answer different questions, and the frost range explains how to read the range around Carlisle's dates instead of trusting one.