Berlin, NJ 08091 Frost Dates
When can you plant in Berlin, NJ?
The last spring frost here typically falls around 04/28, about 243 days from today. The first fall frost typically arrives around 10/15, about 169 frost-free days later.
Berlin sits in USDA Zone 7a (0 to 5°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.
What to do before the first frost
About 7 weeks of growing season left in Berlin before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Berlin's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Berlin compares
At roughly 169 frost-free days, Berlin places 29,401 of 40,283 ZIP codes in this dataset. Within NJ, it ranks 888 of 906.
Learn more
local microclimates covers what one yard in Berlin can differ from the 08091 normal. zone vs. frost date covers why Zone 7a and Berlin's frost date answer different questions.