Emerson, NJ 07630 Frost Dates
07630, near Emerson, NJ: the frost window
The last spring frost here typically falls around 04/20, about 235 days from today. Fall's first freeze usually shows up around 10/26, roughly 189 days after the last spring frost.
Emerson 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
Emerson's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 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.
Emerson against the rest of the dataset
At roughly 189 frost-free days, Emerson places 21,496 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 631 of 906.
Learn more
Two guides worth reading on 07630: the frost range, on how to read the range around Emerson's dates instead of trusting one, and local microclimates, on what one yard in Emerson can differ from the 07630 normal.