Manchester, VT 05253 Frost Dates
05253, near Manchester, VT: the frost window
Around 05/16 is the usual last spring frost, about 261 days away. Fall's first freeze usually shows up around 10/02, roughly 140 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 Manchester, not a forecast for this year.
Stretching the season past the first frost
Manchester'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 Manchester's last frost
05/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/31 and only about 1 year in 10 sees frost after that.
Manchester against the rest of the dataset
Manchester's growing season runs about 140 days, ranking 37,100 of 40,283 US ZIP codes measured here, longest to shortest. Within VT, it ranks 179 of 330.
Learn more
Two guides worth reading on 05253: zone vs. frost date, on why Zone 5a and Manchester's frost date answer different questions, and the frost range, on how to read the range around Manchester's dates instead of trusting one.