Milltown, NJ 08871 Frost Dates
When can you plant in Milltown, NJ?
The last spring frost here typically falls around 04/17, about 232 days from today. The first fall frost typically arrives around 10/23, about 190 frost-free days later.
Zone 7a (0 to 5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Milltown, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Milltown before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/17 is the middle of 30 years of NOAA records, not a promise. Plant by 04/02 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Milltown compares
Milltown's growing season runs about 190 days, ranking 21,127 of 40,283 US ZIP codes measured here, longest to shortest. Within NJ, it ranks 579 of 906.
Learn more
local microclimates covers what one yard in Milltown can differ from the 08871 normal. zone vs. frost date covers why Zone 7a and Milltown's frost date answer different questions.