Hopatcong, NJ 07849 Frost Dates
Hopatcong, NJ: when does the frost end?
The last spring frost here typically falls around 04/25, about 240 days from today. Fall's first freeze usually shows up around 10/19, roughly 175 days after the last spring frost.
Hopatcong sits in USDA Zone 6b (-5 to 0°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
With roughly 7 weeks until Hopatcong's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/25 isn't a guarantee
04/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 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.
Hopatcong against the rest of the dataset
Hopatcong's growing season runs about 175 days, ranking 26,784 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 810 of 906.
Learn more
Before leaning on 07849's figures: zone vs. frost date explains why Zone 6b and Hopatcong's frost date answer different questions, while the frost range explains how to read the range around Hopatcong's dates instead of trusting one.