Bridgewater Town, MA 02330 Frost Dates
02330, near Bridgewater Town, MA: the frost window
The last spring frost here typically falls around 04/30, about 245 days from today. Fall's first freeze usually shows up around 10/16, roughly 170 days after the last spring frost.
Zone 6b (-5 to 0°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 Bridgewater Town, not a forecast for this year.
Stretching the season past the first frost
Bridgewater Town'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.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Bridgewater Town against the rest of the dataset
About 170 days separate Bridgewater Town's last and first frost, putting it 28,900 of 40,283 ZIP codes nationally. Within MA, it ranks 326 of 712.
Learn more
Two guides worth reading on 02330: local microclimates, on what one yard in Bridgewater Town can differ from the 02330 normal, and zone vs. frost date, on why Zone 6b and Bridgewater Town's frost date answer different questions.