Newark, NJ 07103 Frost Dates
07103, near Newark, NJ: the frost window
Around 04/04 is the usual last spring frost, about 219 days away. Fall's first freeze usually shows up around 11/06, roughly 216 days after the last spring frost.
Newark 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
Newark's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Newark's last frost
04/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Newark against the rest of the dataset
At roughly 216 frost-free days, Newark places 13,670 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 268 of 906.
Learn more
Two guides worth reading on 07103: the frost range, on how to read the range around Newark's dates instead of trusting one, and local microclimates, on what one yard in Newark can differ from the 07103 normal.