Rochester, NY 14619 Frost Dates
Rochester, NY: when does the frost end?
Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/25, roughly 181 days after the last spring frost.
Zone 6b (-5 to 0°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 Rochester, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Rochester's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/24 isn't a guarantee
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/08 and only about 1 year in 10 sees frost after that.
Rochester against the rest of the dataset
At roughly 181 frost-free days, Rochester places 24,422 of 40,283 ZIP codes in this dataset. Within NY, it ranks 559 of 1,951.
Learn more
Before leaning on 14619's figures: local microclimates explains what one yard in Rochester can differ from the 14619 normal, while zone vs. frost date explains why Zone 6b and Rochester's frost date answer different questions.