FrostDateCheck

Newton, MA 02482 Frost Dates

02482, near Newton, MA: the frost window

Zone 6b

Typically, the last spring freeze lands around 04/26, roughly 241 days out. Fall's first freeze usually shows up around 10/12, roughly 169 days after the last spring frost.

Newton 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

Newton'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.

The actual range around Newton's last frost

04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/09 and only about 1 year in 10 sees frost after that.

Newton against the rest of the dataset

About 169 days separate Newton's last and first frost, putting it 29,293 of 40,283 ZIP codes nationally. Within MA, it ranks 337 of 712.

Learn more

Two guides worth reading on 02482: the frost range, on how to read the range around Newton's dates instead of trusting one, and local microclimates, on what one yard in Newton can differ from the 02482 normal.