Worcester, MA 01606 Frost Dates
Worcester, 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 181 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Worcester in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Worcester'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 04/11 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.
Worcester against the rest of the dataset
About 181 days separate Worcester's last and first frost, putting it 24,397 of 40,283 ZIP codes nationally. Within MA, it ranks 222 of 712.
Learn more
Before leaning on 01606's figures: zone vs. frost date explains why Zone 6b and Worcester's frost date answer different questions, while the frost range explains how to read the range around Worcester's dates instead of trusting one.