Jacksonville, VT 01339 Frost Dates
01339, near Jacksonville, VT: the frost window
The last spring frost here typically falls around 05/17, about 262 days from today. Fall's first freeze usually shows up around 10/01, roughly 136 days after the last spring frost.
Zone 5b (-15 to -10°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 Jacksonville, not a forecast for this year.
Stretching the season past the first frost
Jacksonville'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 Jacksonville's last frost
05/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Jacksonville against the rest of the dataset
About 136 days separate Jacksonville's last and first frost, putting it 37,795 of 40,283 ZIP codes nationally. Within VT, it ranks 232 of 330.
Learn more
Two guides worth reading on 01339: local microclimates, on what one yard in Jacksonville can differ from the 01339 normal, and zone vs. frost date, on why Zone 5b and Jacksonville's frost date answer different questions.