Lake Grove, NY 11779 Frost Dates
Lake Grove, NY: when does the frost end?
Typically, the last spring freeze lands around 04/10, roughly 225 days out. Fall's first freeze usually shows up around 11/02, roughly 207 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 Lake Grove, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Lake Grove's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/10 isn't a guarantee
04/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/25 and only about 1 year in 10 sees frost after that.
Lake Grove against the rest of the dataset
Lake Grove's growing season runs about 207 days, ranking 15,805 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 284 of 1,951.
Learn more
Before leaning on 11779's figures: local microclimates explains what one yard in Lake Grove can differ from the 11779 normal, while zone vs. frost date explains why Zone 7b and Lake Grove's frost date answer different questions.