Brockton, MA 02357 Frost Dates
Brockton, MA: when does the frost end?
The last spring frost here typically falls around 04/22, about 237 days from today. Fall's first freeze usually shows up around 10/19, roughly 178 days after the last spring frost.
Brockton sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Brockton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Brockton's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/08 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Brockton against the rest of the dataset
About 178 days separate Brockton's last and first frost, putting it 25,556 of 40,283 ZIP codes nationally. Within MA, it ranks 256 of 712.
Learn more
Before leaning on 02357's figures: local microclimates explains what one yard in Brockton can differ from the 02357 normal, while zone vs. frost date explains why Zone 6b and Brockton's frost date answer different questions.