South Burlington, VT 05445 Frost Dates
When can you plant in South Burlington, VT?
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/15, about 169 frost-free days later.
South Burlington 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.
What to do before the first frost
About 7 weeks of growing season left in South Burlington before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around South Burlington's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How South Burlington compares
South Burlington's growing season runs about 169 days, ranking 29,339 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 6 of 330.
Learn more
local microclimates covers what one yard in South Burlington can differ from the 05445 normal. zone vs. frost date covers why Zone 5a and South Burlington's frost date answer different questions.