Amesbury, MA 03041 Frost Dates
Frost dates for Amesbury, MA, ZIP 03041
Typically, the last spring freeze lands around 05/07, roughly 252 days out. 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
Zone 6a around Amesbury has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 05/07 isn't a guarantee
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
About 148 days separate Amesbury's last and first frost, putting it 35,674 of 40,283 ZIP codes nationally. Within MA, it ranks 658 of 712.
Learn more
the frost range explains how to read the range around Amesbury's dates instead of trusting one, and local microclimates explains what one yard in Amesbury can differ from the 03041 normal.