Woburn, MA 01801 Frost Dates
Woburn, MA: when does the frost end?
The last spring frost here typically falls around 04/25, about 240 days from today. Fall's first freeze usually shows up around 10/17, roughly 174 days after the last spring frost.
Zone 6b (-5 to 0°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 Woburn, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Woburn's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Woburn's last frost
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Woburn against the rest of the dataset
At roughly 174 frost-free days, Woburn places 27,334 of 40,283 ZIP codes in this dataset. Within MA, it ranks 307 of 712.
Learn more
Before leaning on 01801's figures: local microclimates explains what one yard in Woburn can differ from the 01801 normal, while zone vs. frost date explains why Zone 6b and Woburn's frost date answer different questions.