Amesbury, MA 03843 Frost Dates
When can you plant in Amesbury, MA?
Around 05/07 is the usual last spring frost, about 252 days away. The first fall frost typically arrives around 10/04, about 148 frost-free days later.
The USDA Plant Hardiness Zone Map puts Amesbury in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 5 weeks of growing season left in Amesbury before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Amesbury's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Amesbury compares
Amesbury's growing season runs about 148 days, ranking 35,681 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 665 of 712.
Learn more
the frost range covers how to read the range around Amesbury's dates instead of trusting one. local microclimates covers what one yard in Amesbury can differ from the 03843 normal.