Ilion, NY 13357 Frost Dates
Ilion, NY: when does the frost end?
Around 05/05 is the usual last spring frost, about 250 days away. Fall's first freeze usually shows up around 10/04, roughly 151 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Ilion 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 Ilion's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Ilion's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Ilion against the rest of the dataset
Ilion's growing season runs about 151 days, ranking 34,977 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,522 of 1,951.
Learn more
Before leaning on 13357's figures: the frost range explains how to read the range around Ilion's dates instead of trusting one, while local microclimates explains what one yard in Ilion can differ from the 13357 normal.