Oneonta, NY 13820 Frost Dates
Oneonta, NY: when does the frost end?
Around 05/17 is the usual last spring frost, about 262 days away. Fall's first freeze usually shows up around 10/03, roughly 141 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Oneonta 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
With roughly 5 weeks until Oneonta's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/17 isn't a guarantee
05/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Oneonta against the rest of the dataset
About 141 days separate Oneonta's last and first frost, putting it 36,878 of 40,283 ZIP codes nationally. Within NY, it ranks 1,778 of 1,951.
Learn more
Before leaning on 13820's figures: the frost range explains how to read the range around Oneonta's dates instead of trusting one, while local microclimates explains what one yard in Oneonta can differ from the 13820 normal.