Bridgewater Town, MA 02059 Frost Dates
02059, near Bridgewater Town, MA: the frost window
Around 04/15 is the usual last spring frost, about 230 days away. Fall's first freeze usually shows up around 11/01, roughly 198 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bridgewater Town in Zone 7a (0 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
Bridgewater Town's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/28 and only about 1 year in 10 sees frost after that.
Bridgewater Town against the rest of the dataset
At roughly 198 frost-free days, Bridgewater Town places 18,295 of 40,283 ZIP codes in this dataset. Within MA, it ranks 111 of 712.
Learn more
Two guides worth reading on 02059: zone vs. frost date, on why Zone 7a and Bridgewater Town's frost date answer different questions, and the frost range, on how to read the range around Bridgewater Town's dates instead of trusting one.