FrostDateCheck

Attleboro, MA 02766 Frost Dates

02766, near Attleboro, MA: the frost window

Zone 6b

Around 04/27 is the usual last spring frost, about 242 days away. Fall's first freeze usually shows up around 10/15, roughly 168 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Attleboro in Zone 6b (-5 to 0°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

Attleboro'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 Attleboro's last frost

04/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.

Attleboro against the rest of the dataset

About 168 days separate Attleboro's last and first frost, putting it 29,660 of 40,283 ZIP codes nationally. Within MA, it ranks 372 of 712.

Learn more

Two guides worth reading on 02766: the frost range, on how to read the range around Attleboro's dates instead of trusting one, and local microclimates, on what one yard in Attleboro can differ from the 02766 normal.