Newton, MA 02132 Frost Dates
02132, near Newton, MA: the frost window
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 10/23, roughly 185 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 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Newton against the rest of the dataset
At roughly 185 frost-free days, Newton places 23,035 of 40,283 ZIP codes in this dataset. Within MA, it ranks 182 of 712.
Learn more
Two guides worth reading on 02132: 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 02132 normal.