Quincy, MA 02186 Frost Dates
When can you plant in Quincy, MA?
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/26, about 190 frost-free days later.
The USDA Plant Hardiness Zone Map puts Quincy 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 8 weeks of growing season left in Quincy before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Quincy's last frost
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/07 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Quincy compares
Quincy's growing season runs about 190 days, ranking 20,977 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 133 of 712.
Learn more
local microclimates covers what one yard in Quincy can differ from the 02186 normal. zone vs. frost date covers why Zone 6b and Quincy's frost date answer different questions.