Hamburg, NJ 07422 Frost Dates
Hamburg, NJ: when does the frost end?
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/12, roughly 164 days after the last spring frost.
Hamburg 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 6 weeks until Hamburg's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Hamburg against the rest of the dataset
Hamburg's growing season runs about 164 days, ranking 30,943 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 896 of 906.
Learn more
Before leaning on 07422's figures: zone vs. frost date explains why Zone 6b and Hamburg's frost date answer different questions, while the frost range explains how to read the range around Hamburg's dates instead of trusting one.