Easthampton, MA 01073 Frost Dates
01073, near Easthampton, MA: the frost window
Typically, the last spring freeze lands around 05/03, roughly 248 days out. Fall's first freeze usually shows up around 10/08, roughly 158 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Easthampton, not a forecast for this year.
Stretching the season past the first frost
Easthampton's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/03 isn't a guarantee
05/03 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 05/17 and only about 1 year in 10 sees frost after that.
Easthampton against the rest of the dataset
Easthampton's growing season runs about 158 days, ranking 32,931 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 586 of 712.
Learn more
Two guides worth reading on 01073: zone vs. frost date, on why Zone 6a and Easthampton's frost date answer different questions, and the frost range, on how to read the range around Easthampton's dates instead of trusting one.