Williston Park, NY 11596 Frost Dates
11596, near Williston Park, NY: the frost window
Around 04/02 is the usual last spring frost, about 217 days away. Fall's first freeze usually shows up around 11/12, roughly 224 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 Williston Park, not a forecast for this year.
Stretching the season past the first frost
Williston Park's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/02 isn't a guarantee
04/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Williston Park against the rest of the dataset
Williston Park's growing season runs about 224 days, ranking 11,815 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 166 of 1,951.
Learn more
Two guides worth reading on 11596: the frost range, on how to read the range around Williston Park's dates instead of trusting one, and local microclimates, on what one yard in Williston Park can differ from the 11596 normal.