Keyport, NJ 07730 Frost Dates
07730, near Keyport, NJ: the frost window
Around 04/17 is the usual last spring frost, about 232 days away. Fall's first freeze usually shows up around 10/23, roughly 190 days after the last spring frost.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Keyport, not a forecast for this year.
Stretching the season past the first frost
Keyport'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 04/17 isn't a guarantee
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.
Keyport against the rest of the dataset
Keyport's growing season runs about 190 days, ranking 21,120 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 572 of 906.
Learn more
Two guides worth reading on 07730: zone vs. frost date, on why Zone 7b and Keyport's frost date answer different questions, and the frost range, on how to read the range around Keyport's dates instead of trusting one.