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USDA Hardiness Zone 7b

Frost Dates for 07306 — Jersey City, New Jersey

Averages from Harrison, Nj US, the nearest reporting station, 4.6 miles away.

Plant tender crops after April 4, and expect the first autumn freeze around November 6. That leaves about 216 frost-free days.

Last spring frost
April 4

50% probability

First fall frost
November 6

50% probability

Growing season
216 days

frost-free

Hardiness zone
7b

5 to 10°F annual low

Planting calendar for 07306

What to do and when, based on the frost normals for Jersey City, New Jersey
WhenWhat to do
January 24 – February 7

Start peppers and aubergines indoors

They need eight to ten weeks under lights before they can go out.

February 7 – February 21

Start tomatoes indoors

Six to eight weeks gives a transplant big enough to set fruit early.

March 7 – March 21

Sow peas, spinach, lettuce, radish outdoors

These tolerate light frost and prefer to germinate in cool soil.

April 4 onward

Transplant tomatoes, peppers, basil, squash, cucumbers

The average last freeze has passed — still watch the actual forecast.

by August 14

Sow the autumn crop of carrots, beets and brassicas

They need about twelve weeks to size up before growth stops.

by October 23

Harvest tender crops, or be ready to cover them

A first freeze two weeks early is well within normal variation.

November 6 onward

Plant garlic, mulch beds, lift tender bulbs

Garlic wants a cold spell; bare soil loses structure over winter.

What these dates mean

Wait until after April 4 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Jersey City, New Jersey are past their last freeze. Harvest before November 6, which leaves roughly 216 frost-free days.

ZIP 07306 sits in USDA hardiness zone 7b, meaning the average coldest night of the year falls between 5 to 10°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.

These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.

Other zone 7b ZIP codes in New Jersey