Monroeville, AL 36458 Frost Dates
36458, near Monroeville, AL: the frost window
The last spring frost here typically falls around 03/22, about 206 days from today. Fall's first freeze usually shows up around 11/08, roughly 231 days after the last spring frost.
Zone 8b (15 to 20°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 Monroeville, not a forecast for this year.
Stretching the season past the first frost
Monroeville's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
03/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Monroeville against the rest of the dataset
At roughly 231 frost-free days, Monroeville places 10,179 of 40,283 ZIP codes in this dataset. Within AL, it ranks 465 of 809.
Learn more
Two guides worth reading on 36458: zone vs. frost date, on why Zone 8b 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.