Roseland, NJ 07068 Frost Dates
07068, near Roseland, NJ: the frost window
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/24, roughly 187 days after the last spring frost.
Zone 7a (0 to 5°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 Roseland, not a forecast for this year.
Stretching the season past the first frost
Roseland's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Roseland against the rest of the dataset
At roughly 187 frost-free days, Roseland places 22,348 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 710 of 906.
Learn more
Two guides worth reading on 07068: the frost range, on how to read the range around Roseland's dates instead of trusting one, and local microclimates, on what one yard in Roseland can differ from the 07068 normal.