Monroeville, IN 46745 Frost Dates
46745, near Monroeville, IN: the frost window
Typically, the last spring freeze lands around 04/23, roughly 238 days out. Fall's first freeze usually shows up around 10/19, roughly 178 days after the last spring frost.
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.
Stretching the season past the first frost
Monroeville's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Monroeville's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Monroeville against the rest of the dataset
About 178 days separate Monroeville's last and first frost, putting it 25,793 of 40,283 ZIP codes nationally. Within IN, it ranks 594 of 927.
Learn more
Two guides worth reading on 46745: zone vs. frost date, on why Zone 6a and Monroeville's frost date answer different questions, and the frost range, on how to read the range around Monroeville's dates instead of trusting one.