Lawrence, MA 01843 Frost Dates
Lawrence, MA: when does the frost end?
Around 04/13 is the usual last spring frost, about 228 days away. Fall's first freeze usually shows up around 10/28, roughly 198 days after the last spring frost.
Lawrence sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 9 weeks until Lawrence's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/13 isn't a guarantee
04/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Lawrence against the rest of the dataset
At roughly 198 frost-free days, Lawrence places 18,258 of 40,283 ZIP codes in this dataset. Within MA, it ranks 97 of 712.
Learn more
Before leaning on 01843's figures: local microclimates explains what one yard in Lawrence can differ from the 01843 normal, while zone vs. frost date explains why Zone 6b and Lawrence's frost date answer different questions.