Woburn, MA 01730 Frost Dates
Frost dates for Woburn, MA, ZIP 01730
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/13, about 169 frost-free days later.
Woburn 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 Woburn has about 7 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 04/27 isn't a guarantee
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/13 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Woburn compares
At roughly 169 frost-free days, Woburn places 29,324 of 40,283 ZIP codes in this dataset. Within MA, it ranks 348 of 712.
Learn more
the frost range explains how to read the range around Woburn's dates instead of trusting one, and local microclimates explains what one yard in Woburn can differ from the 01730 normal.