New Bedford, MA 02770 Frost Dates
New Bedford, MA: when does the frost end?
The last spring frost here typically falls around 04/23, about 238 days from today. Fall's first freeze usually shows up around 10/21, roughly 180 days after the last spring frost.
Zone 7a (0 to 5°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 New Bedford, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until New Bedford's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
New Bedford against the rest of the dataset
About 180 days separate New Bedford's last and first frost, putting it 24,761 of 40,283 ZIP codes nationally. Within MA, it ranks 237 of 712.
Learn more
Before leaning on 02770's figures: zone vs. frost date explains why Zone 7a and New Bedford's frost date answer different questions, while the frost range explains how to read the range around New Bedford's dates instead of trusting one.