Vergennes, VT 05472 Frost Dates
Vergennes, VT: when does the frost end?
Typically, the last spring freeze lands around 05/21, roughly 266 days out. Fall's first freeze usually shows up around 09/25, roughly 124 days after the last spring frost.
Vergennes 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 Vergennes's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Vergennes's last frost
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.
Vergennes against the rest of the dataset
At roughly 124 frost-free days, Vergennes places 38,840 of 40,283 ZIP codes in this dataset. Within VT, it ranks 305 of 330.
Learn more
Before leaning on 05472's figures: the frost range explains how to read the range around Vergennes's dates instead of trusting one, while local microclimates explains what one yard in Vergennes can differ from the 05472 normal.