Washington, NJ 07882 Frost Dates
07882, near Washington, NJ: the frost window
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/25, roughly 188 days after the last spring frost.
Washington 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
Washington's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
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 04/05 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.
Washington against the rest of the dataset
At roughly 188 frost-free days, Washington places 21,963 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 680 of 906.
Learn more
Two guides worth reading on 07882: local microclimates, on what one yard in Washington can differ from the 07882 normal, and zone vs. frost date, on why Zone 6b and Washington's frost date answer different questions.