Riverton, NJ 08077 Frost Dates
08077, near Riverton, NJ: the frost window
The last spring frost here typically falls around 04/15, about 230 days from today. Fall's first freeze usually shows up around 10/31, roughly 199 days after the last spring frost.
Riverton 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.
Stretching the season past the first frost
Riverton's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/15 isn't a guarantee
04/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/01 and only about 1 year in 10 sees frost after that.
Riverton against the rest of the dataset
At roughly 199 frost-free days, Riverton places 18,125 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 449 of 906.
Learn more
Two guides worth reading on 08077: the frost range, on how to read the range around Riverton's dates instead of trusting one, and local microclimates, on what one yard in Riverton can differ from the 08077 normal.