Montpelier, VT 05674 Frost Dates
Montpelier, VT: when does the frost end?
Around 05/21 is the usual last spring frost, about 266 days away. Fall's first freeze usually shows up around 09/25, roughly 124 days after the last spring frost.
Montpelier 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 Montpelier's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Montpelier against the rest of the dataset
Montpelier's growing season runs about 124 days, ranking 38,829 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 301 of 330.
Learn more
Before leaning on 05674's figures: zone vs. frost date explains why Zone 5a and Montpelier's frost date answer different questions, while the frost range explains how to read the range around Montpelier's dates instead of trusting one.