Bergenfield, NJ 07621 Frost Dates
Bergenfield, NJ: when does the frost end?
The last spring frost here typically falls around 04/01, about 216 days from today. Fall's first freeze usually shows up around 11/16, roughly 230 days after the last spring frost.
Zone 7b (5 to 10°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 Bergenfield, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Bergenfield's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/01 isn't a guarantee
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Bergenfield against the rest of the dataset
Bergenfield's growing season runs about 230 days, ranking 10,326 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 185 of 906.
Learn more
Before leaning on 07621's figures: local microclimates explains what one yard in Bergenfield can differ from the 07621 normal, while zone vs. frost date explains why Zone 7b and Bergenfield's frost date answer different questions.