Shoreham, NY 11786 Frost Dates
11786, near Shoreham, NY: the frost window
The last spring frost here typically falls around 04/21, about 236 days from today. Fall's first freeze usually shows up around 10/24, roughly 184 days after the last spring frost.
Zone 7b (5 to 10°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 Shoreham, not a forecast for this year.
Stretching the season past the first frost
Shoreham's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/21 isn't a guarantee
04/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Shoreham against the rest of the dataset
At roughly 184 frost-free days, Shoreham places 23,622 of 40,283 ZIP codes in this dataset. Within NY, it ranks 464 of 1,951.
Learn more
Two guides worth reading on 11786: local microclimates, on what one yard in Shoreham can differ from the 11786 normal, and zone vs. frost date, on why Zone 7b and Shoreham's frost date answer different questions.