Round Lake, NY 12151 Frost Dates
Round Lake, NY: when does the frost end?
Around 05/02 is the usual last spring frost, about 247 days away. Fall's first freeze usually shows up around 10/07, roughly 158 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Round Lake in Zone 6a (-10 to -5°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
With roughly 6 weeks until Round Lake's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Round Lake's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Round Lake against the rest of the dataset
Round Lake's growing season runs about 158 days, ranking 33,076 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,192 of 1,951.
Learn more
Before leaning on 12151's figures: the frost range explains how to read the range around Round Lake's dates instead of trusting one, while local microclimates explains what one yard in Round Lake can differ from the 12151 normal.