Port Republic, NJ 08241 Frost Dates
Port Republic, NJ: when does the frost end?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/29, 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 Port Republic, not a forecast for this year.
Stretching the season past the first frost
With roughly 9 weeks until Port Republic's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/18 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 05/05 and only about 1 year in 10 sees frost after that.
Port Republic against the rest of the dataset
Port Republic's growing season runs about 190 days, ranking 21,228 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 594 of 906.
Learn more
Before leaning on 08241's figures: local microclimates explains what one yard in Port Republic can differ from the 08241 normal, while zone vs. frost date explains why Zone 7b and Port Republic's frost date answer different questions.