Attica, IN 47918 Frost Dates
Frost dates for Attica, IN, ZIP 47918
Around 04/20 is the usual last spring frost, about 235 days away. The first fall frost typically arrives around 10/20, about 182 frost-free days later.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Attica, not a forecast for this year.
What to do before the first frost
Zone 6a around Attica has about 8 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
04/20 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Attica compares
Attica's growing season runs about 182 days, ranking 24,164 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 428 of 927.
Learn more
zone vs. frost date explains why Zone 6a and Attica's frost date answer different questions, and the frost range explains how to read the range around Attica's dates instead of trusting one.