Marshfield, VT 05861 Frost Dates
Marshfield, VT: when does the frost end?
Typically, the last spring freeze lands around 05/13, roughly 258 days out. Fall's first freeze usually shows up around 10/03, roughly 143 days after the last spring frost.
Zone 4b (-25 to -20°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 Marshfield, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Marshfield's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Marshfield's last frost
05/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/25 and only about 1 year in 10 sees frost after that.
Marshfield against the rest of the dataset
About 143 days separate Marshfield's last and first frost, putting it 36,632 of 40,283 ZIP codes nationally. Within VT, it ranks 120 of 330.
Learn more
Before leaning on 05861's figures: local microclimates explains what one yard in Marshfield can differ from the 05861 normal, while zone vs. frost date explains why Zone 4b and Marshfield's frost date answer different questions.