Burlington, VT 12996 Frost Dates
Burlington, VT: when does the frost end?
The last spring frost here typically falls around 04/29, about 244 days from today. Fall's first freeze usually shows up around 10/15, roughly 169 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Burlington in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 7 weeks until Burlington's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Burlington's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Burlington against the rest of the dataset
Burlington's growing season runs about 169 days, ranking 29,323 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 4 of 330.
Learn more
Before leaning on 12996's figures: local microclimates explains what one yard in Burlington can differ from the 12996 normal, while zone vs. frost date explains why Zone 5a and Burlington's frost date answer different questions.