Churubusco, IN 46723 Frost Dates
Frost dates for Churubusco, IN, ZIP 46723
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/17, about 171 frost-free days later.
The USDA Plant Hardiness Zone Map puts Churubusco 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 Churubusco 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.
Why 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Churubusco compares
Churubusco's growing season runs about 171 days, ranking 28,685 of 40,283 US ZIP codes measured here, longest to shortest. Within IN, it ranks 764 of 927.
Learn more
the frost range explains how to read the range around Churubusco's dates instead of trusting one, and local microclimates explains what one yard in Churubusco can differ from the 46723 normal.