Leominster, MA 01464 Frost Dates
Leominster, MA: when does the frost end?
Around 04/29 is the usual last spring frost, about 244 days away. Fall's first freeze usually shows up around 10/11, roughly 164 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Leominster in Zone 6a (-10 to -5°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 6 weeks until Leominster's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Leominster against the rest of the dataset
At roughly 164 frost-free days, Leominster places 30,838 of 40,283 ZIP codes in this dataset. Within MA, it ranks 424 of 712.
Learn more
Before leaning on 01464's figures: local microclimates explains what one yard in Leominster can differ from the 01464 normal, while zone vs. frost date explains why Zone 6a and Leominster's frost date answer different questions.