Southbridge Town, MA 06255 Frost Dates
Southbridge Town, MA: when does the frost end?
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/09, roughly 161 days after the last spring frost.
Zone 6a (-10 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 Southbridge Town, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Southbridge Town's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Southbridge Town's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 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 161 frost-free days, Southbridge Town places 31,978 of 40,283 ZIP codes in this dataset. Within MA, it ranks 498 of 712.
Learn more
Before leaning on 06255's figures: local microclimates explains what one yard in Southbridge Town can differ from the 06255 normal, while zone vs. frost date explains why Zone 6a and Southbridge Town's frost date answer different questions.