Marshfield, VT 05843 Frost Dates
Marshfield, VT: when does the frost end?
Typically, the last spring freeze lands around 05/20, roughly 265 days out. Fall's first freeze usually shows up around 09/28, roughly 129 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Marshfield in Zone 4b (-25 to -20°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 4 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
05/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/04 and only about 1 year in 10 sees frost after that.
Marshfield against the rest of the dataset
At roughly 129 frost-free days, Marshfield places 38,507 of 40,283 ZIP codes in this dataset. Within VT, it ranks 294 of 330.
Learn more
Before leaning on 05843's figures: zone vs. frost date explains why Zone 4b and Marshfield's frost date answer different questions, while the frost range explains how to read the range around Marshfield's dates instead of trusting one.