Copenhagen, NY 13628 Frost Dates
Copenhagen, NY: when does the frost end?
Around 05/02 is the usual last spring frost, about 247 days away. Fall's first freeze usually shows up around 10/13, roughly 163 days after the last spring frost.
Copenhagen sits in USDA Zone 5a (-20 to -15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Copenhagen's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Copenhagen against the rest of the dataset
Copenhagen's growing season runs about 163 days, ranking 31,498 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 990 of 1,951.
Learn more
Before leaning on 13628's figures: zone vs. frost date explains why Zone 5a and Copenhagen's frost date answer different questions, while the frost range explains how to read the range around Copenhagen's dates instead of trusting one.