Cornwall-on-Hudson, NY 12584 Frost Dates
12584, near Cornwall-on-Hudson, NY: the frost window
Around 04/10 is the usual last spring frost, about 225 days away. Fall's first freeze usually shows up around 11/01, roughly 204 days after the last spring frost.
Zone 6b (-5 to 0°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 Cornwall-on-Hudson, not a forecast for this year.
Stretching the season past the first frost
Cornwall-on-Hudson's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Cornwall-on-Hudson's last frost
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 16,609 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 309 of 1,951.
Learn more
Two guides worth reading on 12584: the frost range, on how to read the range around Cornwall-on-Hudson's dates instead of trusting one, and local microclimates, on what one yard in Cornwall-on-Hudson can differ from the 12584 normal.