Keansburg, NJ 07758 Frost Dates
07758, near Keansburg, NJ: the frost window
The last spring frost here typically falls around 04/09, about 224 days from today. Fall's first freeze usually shows up around 11/03, roughly 208 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 Keansburg, not a forecast for this year.
Stretching the season past the first frost
Keansburg's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/09 isn't a guarantee
04/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/23 and only about 1 year in 10 sees frost after that.
Keansburg against the rest of the dataset
Keansburg's growing season runs about 208 days, ranking 15,559 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 317 of 906.
Learn more
Two guides worth reading on 07758: the frost range, on how to read the range around Keansburg's dates instead of trusting one, and local microclimates, on what one yard in Keansburg can differ from the 07758 normal.