Muttontown, NY 11791 Frost Dates
Muttontown, NY: when does the frost end?
The last spring frost here typically falls around 04/06, about 221 days from today. Fall's first freeze usually shows up around 11/06, roughly 213 days after the last spring frost.
Muttontown sits in USDA Zone 7b (5 to 10°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 10 weeks until Muttontown's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Muttontown's last frost
04/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/20 and only about 1 year in 10 sees frost after that.
Muttontown against the rest of the dataset
Muttontown's growing season runs about 213 days, ranking 14,500 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 261 of 1,951.
Learn more
Before leaning on 11791's figures: the frost range explains how to read the range around Muttontown's dates instead of trusting one, while local microclimates explains what one yard in Muttontown can differ from the 11791 normal.