Sidney, NY 13804 Frost Dates
Sidney, NY: when does the frost end?
Around 05/11 is the usual last spring frost, about 256 days away. Fall's first freeze usually shows up around 10/09, roughly 151 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Sidney 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 6 weeks until Sidney's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/11 isn't a guarantee
05/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Sidney against the rest of the dataset
Sidney's growing season runs about 151 days, ranking 35,021 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,530 of 1,951.
Learn more
Before leaning on 13804's figures: zone vs. frost date explains why Zone 5b and Sidney's frost date answer different questions, while the frost range explains how to read the range around Sidney's dates instead of trusting one.