Monroeville, IN 46773 Frost Dates
Frost dates for Monroeville, IN, ZIP 46773
The last spring frost here typically falls around 04/23, about 238 days from today. The first fall frost typically arrives around 10/19, about 178 frost-free days later.
The USDA Plant Hardiness Zone Map puts Monroeville 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 Monroeville 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 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Monroeville compares
At roughly 178 frost-free days, Monroeville places 25,794 of 40,283 ZIP codes in this dataset. Within IN, it ranks 595 of 927.
Learn more
local microclimates explains what one yard in Monroeville can differ from the 46773 normal, and zone vs. frost date explains why Zone 6a and Monroeville's frost date answer different questions.