Delhi, NY 13806 Frost Dates
Delhi, NY: when does the frost end?
Typically, the last spring freeze lands around 05/19, roughly 264 days out. Fall's first freeze usually shows up around 10/01, roughly 132 days after the last spring frost.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Delhi, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Delhi's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/19 isn't a guarantee
05/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/03 and only about 1 year in 10 sees frost after that.
Delhi against the rest of the dataset
At roughly 132 frost-free days, Delhi places 38,190 of 40,283 ZIP codes in this dataset. Within NY, it ranks 1,884 of 1,951.
Learn more
Before leaning on 13806's figures: the frost range explains how to read the range around Delhi's dates instead of trusting one, while local microclimates explains what one yard in Delhi can differ from the 13806 normal.