Morrisville, NY 13334 Frost Dates
13334, near Morrisville, NY: the frost window
Around 05/06 is the usual last spring frost, about 251 days away. Fall's first freeze usually shows up around 10/09, roughly 156 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Morrisville in Zone 5b (-15 to -10°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
Morrisville's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/21 and only about 1 year in 10 sees frost after that.
Morrisville against the rest of the dataset
At roughly 156 frost-free days, Morrisville places 33,675 of 40,283 ZIP codes in this dataset. Within NY, it ranks 1,318 of 1,951.
Learn more
Two guides worth reading on 13334: local microclimates, on what one yard in Morrisville can differ from the 13334 normal, and zone vs. frost date, on why Zone 5b and Morrisville's frost date answer different questions.