West Haverstraw, NY 10923 Frost Dates
10923, near West Haverstraw, NY: the frost window
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/17, roughly 172 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts West Haverstraw in Zone 7a (0 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
West Haverstraw's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/30 isn't a guarantee
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
West Haverstraw against the rest of the dataset
About 172 days separate West Haverstraw's last and first frost, putting it 28,223 of 40,283 ZIP codes nationally. Within NY, it ranks 696 of 1,951.
Learn more
Two guides worth reading on 10923: the frost range, on how to read the range around West Haverstraw's dates instead of trusting one, and local microclimates, on what one yard in West Haverstraw can differ from the 10923 normal.