East Nassau, NY 12169 Frost Dates
12169, near East Nassau, NY: the frost window
Around 05/05 is the usual last spring frost, about 250 days away. Fall's first freeze usually shows up around 10/05, roughly 152 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts East Nassau in Zone 5b (-15 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
East Nassau's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/21 and only about 1 year in 10 sees frost after that.
East Nassau against the rest of the dataset
East Nassau's growing season runs about 152 days, ranking 34,857 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,515 of 1,951.
Learn more
Two guides worth reading on 12169: zone vs. frost date, on why Zone 5b and East Nassau's frost date answer different questions, and the frost range, on how to read the range around East Nassau's dates instead of trusting one.