Jersey City, NJ 10004 Frost Dates
Jersey City, 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.
Jersey City 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 Jersey City'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.
Jersey City against the rest of the dataset
Jersey City's growing season runs about 236 days, ranking 9,210 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 23 of 906.
Learn more
Before leaning on 10004's figures: zone vs. frost date explains why Zone 7b and Jersey City's frost date answer different questions, while the frost range explains how to read the range around Jersey City's dates instead of trusting one.