When is the last frost in Hackensack, NJ?

The average last spring frost (50% probability of 32°F) in Hackensack is around April 3, based on NOAA/NCEI 1991–2020 normals at the Teterboro Ap, NJ station (2.8 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Hackensack?

The average first fall frost in Hackensack, NJ is around November 4, giving roughly a 215-day frost-free growing season.

What planting zone is Hackensack, NJ?

Hackensack is in USDA plant hardiness zone 7b (average annual extreme minimum temperature 5 to 10°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Hackensack?

In Hackensack, NJ the warmest month is July (avg high 87°F) and the coldest is January (avg low 25.7°F). It averages about 46.3″ of precipitation a year.

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Hackensack, NJ Planting Calendar & Frost Dates

USDA hardiness zone 7b · ZIP 07601 · elevation 3′ · NOAA & USDA data

Hackensack is in USDA hardiness zone 7b (winters can dip to 5 to 10°F), with a growing season of about 215 days between the average last spring frost (April 3) and first fall frost (November 4). The warmest month is July (avg high 87°F); the coldest is January (avg low 25.7°F). It averages 46.3″ of precipitation a year. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp 5 to 10°F

Last spring frost

April 3

avg (50% prob, 32°F)

First fall frost

November 4

avg (50% prob, 32°F)

Growing season

215 days

frost-free window

Warmest month

July

avg high 87°F

Month-by-month typical weather in Hackensack

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Teterboro Ap, NJ (2.8 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	39.9	25.7	32.8	3.3	–
February	42.8	27	34.9	2.8	–
March	50.6	34	42.3	4.1	–
April	62.5	43.7	53.1	4	–
May	73.1	53.3	63.2	3.9	–
June	82	63.1	72.5	4.3	–
July	87	68.9	78	4.5	–
August	85.1	67.3	76.2	4.3	–
September	78.4	59.9	69.2	4.1	–
October	66.8	47.9	57.4	3.7	–
November	55.5	38.3	46.9	3.3	–
December	44.9	30.8	37.9	4.1	–

What to plant when in Hackensack

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: February 20 · Transplant out: April 10
Peppers	warm	Start seeds indoors: February 6 · Transplant out: April 17
Cucumbers	warm	Direct sow: April 10
Zucchini / squash	warm	Direct sow: April 10
Bush beans	warm	Direct sow: April 10
Sweet corn	warm	Direct sow: April 10
Basil	warm	Transplant out: April 10
Peas	cool	Sow (spring): February 27 · Sow (fall): September 9
Spinach	cool	Sow (spring): February 20 · Sow (fall): September 9
Lettuce	cool	Sow (spring): March 6 · Sow (fall): September 9
Kale	cool	Transplant (spring): March 13 · Sow (fall): August 26
Broccoli	cool	Transplant (spring): March 20
Carrots	cool	Sow (spring): March 13 · Sow (fall): August 26
Onions	cool	Transplant (spring): March 6
Potatoes	cool	Plant seed potatoes: March 20
Radishes	cool	Sow (spring): March 6 · Sow (fall): September 23

Dates are computed from Hackensack's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

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Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in New Jersey

Passaic, NJ Clifton, NJ Paterson, NJ West New York, NJ Union City, NJ Hoboken, NJ Kearny, NJ East Orange, NJ

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Teterboro Ap, NJ, 2.8 mi (confidence: high). Monthly weather normals: Teterboro Ap, NJ, 2.8 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.