Quincy, MA 02126 Frost Dates
Frost dates for Quincy, MA, ZIP 02126
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/23, about 185 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
Zone 6b around Quincy has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Quincy compares
Quincy's growing season runs about 185 days, ranking 23,030 of 40,283 US ZIP codes measured here, longest to shortest. Within MA, it ranks 179 of 712.
Learn more
zone vs. frost date explains why Zone 6b and Quincy's frost date answer different questions, and the frost range explains how to read the range around Quincy's dates instead of trusting one.