When is the last frost in Kearny, NJ?

The average last spring frost (50% probability of 32°F) in Kearny is around April 4, based on NOAA/NCEI 1991–2020 normals at the Harrison, NJ station (1.5 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 Kearny?

The average first fall frost in Kearny, NJ is around November 6, giving roughly a 216-day frost-free growing season.

What planting zone is Kearny, NJ?

Kearny 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 Kearny?

In Kearny, NJ the warmest month is July (avg high 86.8°F) and the coldest is January (avg low 24.9°F). It averages about 50.4″ of precipitation a year and 28.2″ of snow.

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Kearny, NJ Planting Calendar & Frost Dates

USDA hardiness zone 7b · ZIP 07032 · elevation 7′ · NOAA & USDA data

Kearny is in USDA hardiness zone 7b (winters can dip to 5 to 10°F), with a growing season of about 216 days between the average last spring frost (April 4) and first fall frost (November 6). The warmest month is July (avg high 86.8°F); the coldest is January (avg low 24.9°F). It averages 50.4″ of precipitation a year and 28.2″ of snow, mostly mid-winter. 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 4

avg (50% prob, 32°F)

First fall frost

November 6

avg (50% prob, 32°F)

Growing season

216 days

frost-free window

Warmest month

July

avg high 86.8°F

Month-by-month typical weather in Kearny

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Harrison, NJ (1.5 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	39.4	24.9	32.1	3.7	8
February	42.3	26.1	34.2	3.3	8.4
March	49.9	32.7	41.3	4.3	4.7
April	61.8	43.1	52.4	4.1	0.7
May	72.1	53.5	62.8	4.4	0
June	81.5	63.3	72.4	4.9	0
July	86.8	68.9	77.9	4.8	0
August	84.6	67	75.8	4.4	0
September	77.5	60.1	68.8	4.3	0
October	65.6	47.7	56.6	4.2	0.2
November	54.2	38	46.1	3.7	0.3
December	44	30.5	37.3	4.6	5.9

What to plant when in Kearny

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: February 21 · Transplant out: April 11
Peppers	warm	Start seeds indoors: February 7 · Transplant out: April 18
Cucumbers	warm	Direct sow: April 11
Zucchini / squash	warm	Direct sow: April 11
Bush beans	warm	Direct sow: April 11
Sweet corn	warm	Direct sow: April 11
Basil	warm	Transplant out: April 11
Peas	cool	Sow (spring): February 28 · Sow (fall): September 11
Spinach	cool	Sow (spring): February 21 · Sow (fall): September 11
Lettuce	cool	Sow (spring): March 7 · Sow (fall): September 11
Kale	cool	Transplant (spring): March 14 · Sow (fall): August 28
Broccoli	cool	Transplant (spring): March 21
Carrots	cool	Sow (spring): March 14 · Sow (fall): August 28
Onions	cool	Transplant (spring): March 7
Potatoes	cool	Plant seed potatoes: March 21
Radishes	cool	Sow (spring): March 7 · Sow (fall): September 25

Dates are computed from Kearny'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

Newark, NJ East Orange, NJ Jersey City, NJ Union City, NJ Hoboken, NJ Bayonne, NJ Elizabeth, NJ West New York, 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 — Harrison, NJ, 1.5 mi (confidence: high). Monthly weather normals: Harrison, NJ, 1.5 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.