Theresa, NY 13679 Frost Dates
Theresa, NY: when does the frost end?
Typically, the last spring freeze lands around 05/14, roughly 259 days out. Fall's first freeze usually shows up around 09/26, roughly 134 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 Theresa, not a forecast for this year.
Stretching the season past the first frost
With roughly 4 weeks until Theresa's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Theresa against the rest of the dataset
Theresa's growing season runs about 134 days, ranking 37,999 of 40,283 US ZIP codes measured here, longest to shortest. Within NY, it ranks 1,869 of 1,951.
Learn more
Before leaning on 13679's figures: local microclimates explains what one yard in Theresa can differ from the 13679 normal, while zone vs. frost date explains why Zone 5a and Theresa's frost date answer different questions.