Southbridge Town, MA 06267 Frost Dates
Frost dates for Southbridge Town, MA, ZIP 06267
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/09, about 161 frost-free days later.
The USDA Plant Hardiness Zone Map puts Southbridge Town in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Southbridge Town has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/20 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Southbridge Town compares
Southbridge Town's growing season runs about 161 days, ranking 31,980 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 500 of 712.
Learn more
zone vs. frost date explains why Zone 6b and Southbridge Town's frost date answer different questions, and the frost range explains how to read the range around Southbridge Town's dates instead of trusting one.