FrostDateCheck

Newbury, VT 05045 Frost Dates

When can you plant in Newbury, VT?

Zone 5a

Around 05/14 is the usual last spring frost, about 259 days away. The first fall frost typically arrives around 09/29, about 136 frost-free days later.

Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Newbury, not a forecast for this year.

What to do before the first frost

About 5 weeks of growing season left in Newbury before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 05/14 isn't a guarantee

05/14 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 05/29 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Newbury compares

About 136 days separate Newbury's last and first frost, putting it 37,768 of 40,283 ZIP codes nationally. Within VT, it ranks 228 of 330.

Learn more

zone vs. frost date covers why Zone 5a and Newbury's frost date answer different questions. the frost range covers how to read the range around Newbury's dates instead of trusting one.