Bernardsville, NJ 07924 Frost Dates
Bernardsville, NJ: when does the frost end?
Around 04/26 is the usual last spring frost, about 241 days away. Fall's first freeze usually shows up around 10/18, roughly 176 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 Bernardsville, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Bernardsville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Bernardsville against the rest of the dataset
About 176 days separate Bernardsville's last and first frost, putting it 26,418 of 40,283 ZIP codes nationally. Within NJ, it ranks 792 of 906.
Learn more
Before leaning on 07924's figures: zone vs. frost date explains why Zone 6b and Bernardsville's frost date answer different questions, while the frost range explains how to read the range around Bernardsville's dates instead of trusting one.