Newbury, VT 05040 Frost Dates
05040, near Newbury, VT: the frost window
The last spring frost here typically falls around 05/14, about 259 days from today. Fall's first freeze usually shows up around 09/29, roughly 136 days after the last spring frost.
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.
Stretching the season past the first frost
Newbury's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Newbury's last frost
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/29 and only about 1 year in 10 sees frost after that.
Newbury against the rest of the dataset
Newbury's growing season runs about 136 days, ranking 37,767 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 227 of 330.
Learn more
Two guides worth reading on 05040: the frost range, on how to read the range around Newbury's dates instead of trusting one, and local microclimates, on what one yard in Newbury can differ from the 05040 normal.