Glen Ridge, NJ 07189 Frost Dates
Glen Ridge, NJ: when does the frost end?
The last spring frost here typically falls around 04/18, about 233 days from today. Fall's first freeze usually shows up around 10/24, roughly 187 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 Glen Ridge, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Glen Ridge's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Glen Ridge against the rest of the dataset
About 187 days separate Glen Ridge's last and first frost, putting it 22,331 of 40,283 ZIP codes nationally. Within NJ, it ranks 702 of 906.
Learn more
Before leaning on 07189's figures: the frost range explains how to read the range around Glen Ridge's dates instead of trusting one, while local microclimates explains what one yard in Glen Ridge can differ from the 07189 normal.