Newbury, VT 03765 Frost Dates
Newbury, VT: when does the frost end?
Typically, the last spring freeze lands around 05/15, roughly 260 days out. Fall's first freeze usually shows up around 09/28, roughly 133 days after the last spring frost.
Newbury sits in USDA Zone 5a (-20 to -15°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.
Stretching the season past the first frost
With roughly 4 weeks until Newbury's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/15 isn't a guarantee
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/03 and only about 1 year in 10 sees frost after that.
Newbury against the rest of the dataset
Newbury's growing season runs about 133 days, ranking 38,096 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 251 of 330.
Learn more
Before leaning on 03765's figures: zone vs. frost date explains why Zone 5a and Newbury's frost date answer different questions, while the frost range explains how to read the range around Newbury's dates instead of trusting one.