Cornwall-on-Hudson, NY 10953 Frost Dates
Cornwall-on-Hudson, 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 11/01, roughly 204 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Cornwall-on-Hudson in Zone 6b (-5 to 0°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 9 weeks until Cornwall-on-Hudson'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 04/24 and only about 1 year in 10 sees frost after that.
Cornwall-on-Hudson against the rest of the dataset
Cornwall-on-Hudson's growing season runs about 204 days, ranking 16,605 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 305 of 1,951.
Learn more
Before leaning on 10953's figures: the frost range explains how to read the range around Cornwall-on-Hudson's dates instead of trusting one, while local microclimates explains what one yard in Cornwall-on-Hudson can differ from the 10953 normal.