Trenton, NJ 08605 Frost Dates
Trenton, NJ: when does the frost end?
The last spring frost here typically falls around 04/17, about 232 days from today. Fall's first freeze usually shows up around 10/28, roughly 192 days after the last spring frost.
Trenton sits in USDA Zone 7a (0 to 5°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 Trenton'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
04/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Trenton against the rest of the dataset
Trenton's growing season runs about 192 days, ranking 20,114 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 528 of 906.
Learn more
Before leaning on 08605's figures: the frost range explains how to read the range around Trenton's dates instead of trusting one, while local microclimates explains what one yard in Trenton can differ from the 08605 normal.