Delanson, NY 12056 Frost Dates
Delanson, NY: when does the frost end?
Around 05/07 is the usual last spring frost, about 252 days away. Fall's first freeze usually shows up around 10/07, roughly 153 days after the last spring frost.
Delanson sits in USDA Zone 5b (-15 to -10°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 6 weeks until Delanson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/23 and only about 1 year in 10 sees frost after that.
Delanson against the rest of the dataset
Delanson's growing season runs about 153 days, ranking 34,625 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,454 of 1,951.
Learn more
Before leaning on 12056's figures: zone vs. frost date explains why Zone 5b and Delanson's frost date answer different questions, while the frost range explains how to read the range around Delanson's dates instead of trusting one.