Southbridge Town, MA 01081 Frost Dates
Southbridge Town, MA: when does the frost end?
Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/15, roughly 169 days after the last spring frost.
Southbridge Town 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 Southbridge Town's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/28 isn't a guarantee
04/28 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 05/17 and only about 1 year in 10 sees frost after that.
Southbridge Town against the rest of the dataset
At roughly 169 frost-free days, Southbridge Town places 29,345 of 40,283 ZIP codes in this dataset. Within MA, it ranks 357 of 712.
Learn more
Before leaning on 01081's figures: zone vs. frost date explains why Zone 6b and Southbridge Town's frost date answer different questions, while the frost range explains how to read the range around Southbridge Town's dates instead of trusting one.