Guttenberg, NJ 10133 Frost Dates
Guttenberg, NJ: when does the frost end?
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
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.
Why 03/30 isn't a guarantee
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
About 236 days separate Guttenberg's last and first frost, putting it 9,376 of 40,283 ZIP codes nationally. Within NJ, it ranks 141 of 906.
Learn more
Before leaning on 10133'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 10133 normal.