Netcong, NJ 07857 Frost Dates
07857, near Netcong, NJ: the frost window
Typically, the last spring freeze lands around 04/25, roughly 240 days out. Fall's first freeze usually shows up around 10/19, roughly 175 days after the last spring frost.
Netcong sits in USDA Zone 6b (-5 to 0°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
Netcong's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Netcong against the rest of the dataset
Netcong's growing season runs about 175 days, ranking 26,899 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 821 of 906.
Learn more
Two guides worth reading on 07857: local microclimates, on what one yard in Netcong can differ from the 07857 normal, and zone vs. frost date, on why Zone 6b and Netcong's frost date answer different questions.