Gloucester, MA 01929 Frost Dates
Frost dates for Gloucester, MA, ZIP 01929
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/12, about 160 frost-free days later.
Gloucester 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
Zone 6b around Gloucester has about 6 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.
How much risk comes with planting early here
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Gloucester compares
At roughly 160 frost-free days, Gloucester places 32,247 of 40,283 ZIP codes in this dataset. Within MA, it ranks 534 of 712.
Learn more
local microclimates explains what one yard in Gloucester can differ from the 01929 normal, and zone vs. frost date explains why Zone 6b and Gloucester's frost date answer different questions.