New Milford, NJ 07646 Frost Dates
New Milford, NJ: when does the frost end?
Around 04/20 is the usual last spring frost, about 235 days away. Fall's first freeze usually shows up around 10/26, roughly 189 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts New Milford in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until New Milford's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/20 isn't a guarantee
04/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
New Milford against the rest of the dataset
New Milford's growing season runs about 189 days, ranking 21,439 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 607 of 906.
Learn more
Before leaning on 07646's figures: local microclimates explains what one yard in New Milford can differ from the 07646 normal, while zone vs. frost date explains why Zone 7b and New Milford's frost date answer different questions.