Greenport, NY 11958 Frost Dates
Greenport, NY: when does the frost end?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. Fall's first freeze usually shows up around 11/01, roughly 196 days after the last spring frost.
Greenport 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 9 weeks until Greenport's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Greenport's last frost
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/04 and only about 1 year in 10 sees frost after that.
Greenport against the rest of the dataset
Greenport's growing season runs about 196 days, ranking 18,982 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 348 of 1,951.
Learn more
Before leaning on 11958's figures: local microclimates explains what one yard in Greenport can differ from the 11958 normal, while zone vs. frost date explains why Zone 7b and Greenport's frost date answer different questions.