Westbury, NY 11551 Frost Dates
11551, near Westbury, NY: the frost window
Typically, the last spring freeze lands around 04/02, roughly 217 days out. Fall's first freeze usually shows up around 11/12, roughly 224 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Westbury in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Westbury'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.
The actual range around Westbury's last frost
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.
Westbury against the rest of the dataset
About 224 days separate Westbury's last and first frost, putting it 11,770 of 40,283 ZIP codes nationally. Within NY, it ranks 150 of 1,951.
Learn more
Two guides worth reading on 11551: the frost range, on how to read the range around Westbury's dates instead of trusting one, and local microclimates, on what one yard in Westbury can differ from the 11551 normal.