Rochester, NY 14620 Frost Dates
Rochester, NY: when does the frost end?
Typically, the last spring freeze lands around 04/24, roughly 239 days out. Fall's first freeze usually shows up around 10/25, roughly 181 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Rochester in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
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.
The actual range around Rochester's last frost
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 24,423 of 40,283 ZIP codes in this dataset. Within NY, it ranks 560 of 1,951.
Learn more
Before leaning on 14620's figures: local microclimates explains what one yard in Rochester can differ from the 14620 normal, while zone vs. frost date explains why Zone 6b and Rochester's frost date answer different questions.