Glen Ridge, NJ 07191 Frost Dates
Frost dates for Glen Ridge, NJ, ZIP 07191
Around 04/18 is the usual last spring frost, about 233 days away. The first fall frost typically arrives around 10/24, about 187 frost-free days later.
Glen Ridge sits in USDA Zone 7b (5 to 10°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.
What to do before the first frost
Zone 7b around Glen Ridge has about 8 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/03 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Glen Ridge compares
At roughly 187 frost-free days, Glen Ridge places 22,332 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 703 of 906.
Learn more
the frost range explains how to read the range around Glen Ridge's dates instead of trusting one, and local microclimates explains what one yard in Glen Ridge can differ from the 07191 normal.