Perth Amboy, NJ 08832 Frost Dates
Perth Amboy, NJ: when does the frost end?
Typically, the last spring freeze lands around 04/11, roughly 226 days out. Fall's first freeze usually shows up around 10/31, roughly 202 days after the last spring frost.
Perth Amboy 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 9 weeks until Perth Amboy'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
04/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/28 and only about 1 year in 10 sees frost after that.
Perth Amboy against the rest of the dataset
Perth Amboy's growing season runs about 202 days, ranking 17,113 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 377 of 906.
Learn more
Before leaning on 08832's figures: the frost range explains how to read the range around Perth Amboy's dates instead of trusting one, while local microclimates explains what one yard in Perth Amboy can differ from the 08832 normal.