FrostDateCheck

Clayton, NJ 08094 Frost Dates

Clayton, NJ: when does the frost end?

Zone 7a

Around 04/14 is the usual last spring frost, about 229 days away. Fall's first freeze usually shows up around 10/27, roughly 196 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Clayton 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

With roughly 9 weeks until Clayton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

Why 04/14 isn't a guarantee

04/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/27 and only about 1 year in 10 sees frost after that.

Clayton against the rest of the dataset

Clayton's growing season runs about 196 days, ranking 18,946 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 457 of 906.

Learn more

Before leaning on 08094's figures: the frost range explains how to read the range around Clayton's dates instead of trusting one, while local microclimates explains what one yard in Clayton can differ from the 08094 normal.