Guttenberg, NJ 10087 Frost Dates
Guttenberg, NJ: when does the frost end?
Typically, the last spring freeze lands around 03/30, roughly 214 days out. Fall's first freeze usually shows up around 11/20, roughly 236 days after the last spring frost.
Guttenberg sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 12 weeks until Guttenberg's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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
Guttenberg's growing season runs about 236 days, ranking 9,358 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 123 of 906.
Learn more
Before leaning on 10087's figures: the frost range explains how to read the range around Guttenberg's dates instead of trusting one, while local microclimates explains what one yard in Guttenberg can differ from the 10087 normal.