FrostDateCheck

Lowell, MA 01824 Frost Dates

When can you plant in Lowell, MA?

Zone 6b

Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/10, about 164 frost-free days later.

Lowell 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.

What to do before the first frost

About 6 weeks of growing season left in Lowell before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Lowell compares

At roughly 164 frost-free days, Lowell places 30,802 of 40,283 ZIP codes in this dataset. Within MA, it ranks 407 of 712.

Learn more

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