FrostDateCheck

Newton, MA 02481 Frost Dates

When can you plant in Newton, MA?

Zone 6b

The last spring frost here typically falls around 04/26, about 241 days from today. The first fall frost typically arrives around 10/12, about 169 frost-free days later.

The USDA Plant Hardiness Zone Map puts Newton in Zone 6b (-5 to 0°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 6 weeks of growing season left in Newton before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Newton's last frost

04/26 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/09 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Newton compares

About 169 days separate Newton's last and first frost, putting it 29,292 of 40,283 ZIP codes nationally. Within MA, it ranks 336 of 712.

Learn more

zone vs. frost date covers why Zone 6b and Newton's frost date answer different questions. the frost range covers how to read the range around Newton's dates instead of trusting one.