Marshfield, VT 05667 Frost Dates
Marshfield, VT: when does the frost end?
Typically, the last spring freeze lands around 05/25, roughly 270 days out. Fall's first freeze usually shows up around 09/22, roughly 119 days after the last spring frost.
Marshfield 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.
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
05/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/07 and only about 1 year in 10 sees frost after that.
Marshfield against the rest of the dataset
About 119 days separate Marshfield's last and first frost, putting it 39,176 of 40,283 ZIP codes nationally. Within VT, it ranks 316 of 330.
Learn more
Before leaning on 05667's figures: zone vs. frost date explains why Zone 5a 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.