Amesbury, MA 03819 Frost Dates
Amesbury, MA: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/11, roughly 162 days after the last spring frost.
Amesbury sits in USDA Zone 6a (-10 to -5°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 6 weeks until Amesbury's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Amesbury's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Amesbury against the rest of the dataset
At roughly 162 frost-free days, Amesbury places 31,666 of 40,283 ZIP codes in this dataset. Within MA, it ranks 488 of 712.
Learn more
Before leaning on 03819's figures: the frost range explains how to read the range around Amesbury's dates instead of trusting one, while local microclimates explains what one yard in Amesbury can differ from the 03819 normal.