Castleton-on-Hudson, NY 12158 Frost Dates
Castleton-on-Hudson, NY: when does the frost end?
The last spring frost here typically falls around 05/03, about 248 days from today. Fall's first freeze usually shows up around 10/12, roughly 160 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Castleton-on-Hudson 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 Castleton-on-Hudson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Castleton-on-Hudson against the rest of the dataset
At roughly 160 frost-free days, Castleton-on-Hudson places 32,413 of 40,283 ZIP codes in this dataset. Within NY, it ranks 1,126 of 1,951.
Learn more
Before leaning on 12158's figures: local microclimates explains what one yard in Castleton-on-Hudson can differ from the 12158 normal, while zone vs. frost date explains why Zone 6a and Castleton-on-Hudson's frost date answer different questions.