Leominster, MA 01467 Frost Dates
Frost dates for Leominster, MA, ZIP 01467
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/11, about 164 frost-free days later.
Leominster sits in USDA Zone 6a (-10 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
Zone 6a around Leominster 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
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Leominster compares
About 164 days separate Leominster's last and first frost, putting it 30,839 of 40,283 ZIP codes nationally. Within MA, it ranks 425 of 712.
Learn more
zone vs. frost date explains why Zone 6a and Leominster's frost date answer different questions, and the frost range explains how to read the range around Leominster's dates instead of trusting one.