Afton, NY 13813 Frost Dates
Afton, NY: when does the frost end?
Around 05/12 is the usual last spring frost, about 257 days away. Fall's first freeze usually shows up around 10/09, roughly 152 days after the last spring frost.
Afton 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 Afton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Afton's last frost
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/27 and only about 1 year in 10 sees frost after that.
Afton against the rest of the dataset
About 152 days separate Afton's last and first frost, putting it 34,828 of 40,283 ZIP codes nationally. Within NY, it ranks 1,503 of 1,951.
Learn more
Before leaning on 13813's figures: local microclimates explains what one yard in Afton can differ from the 13813 normal, while zone vs. frost date explains why Zone 5b and Afton's frost date answer different questions.