Winthrop Town, MA 02152 Frost Dates
When can you plant in Winthrop Town, MA?
Typically, the last spring freeze lands around 04/04, roughly 219 days out. The first fall frost typically arrives around 11/09, about 218 frost-free days later.
Winthrop Town sits in USDA Zone 7a (0 to 5°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 10 weeks of growing season left in Winthrop Town before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/04 isn't a guarantee
04/04 is the middle of 30 years of NOAA records, not a promise. Plant by 03/25 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Winthrop Town compares
At roughly 218 frost-free days, Winthrop Town places 13,216 of 40,283 ZIP codes in this dataset. Within MA, it ranks 33 of 712.
Learn more
zone vs. frost date covers why Zone 7a and Winthrop Town's frost date answer different questions. the frost range covers how to read the range around Winthrop Town's dates instead of trusting one.