Guttenberg, NJ 10272 Frost Dates
10272, near Guttenberg, NJ: the frost window
The last spring frost here typically falls around 03/30, about 214 days from today. Fall's first freeze usually shows up around 11/20, roughly 236 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 Guttenberg, not a forecast for this year.
Stretching the season past the first frost
Guttenberg's growing season runs out in roughly 12 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
03/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Guttenberg against the rest of the dataset
At roughly 236 frost-free days, Guttenberg places 9,402 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 167 of 906.
Learn more
Two guides worth reading on 10272: the frost range, on how to read the range around Guttenberg's dates instead of trusting one, and local microclimates, on what one yard in Guttenberg can differ from the 10272 normal.