FrostDateCheck

Flemington, NJ 08822 Frost Dates

08822, near Flemington, NJ: the frost window

Zone 7a

Around 04/24 is the usual last spring frost, about 239 days away. Fall's first freeze usually shows up around 10/21, roughly 179 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Flemington in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.

Stretching the season past the first frost

Flemington'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.

The actual range around Flemington's last frost

04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 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.

Flemington against the rest of the dataset

Flemington's growing season runs about 179 days, ranking 25,284 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 754 of 906.

Learn more

Two guides worth reading on 08822: zone vs. frost date, on why Zone 7a and Flemington's frost date answer different questions, and the frost range, on how to read the range around Flemington's dates instead of trusting one.