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Frost dates / New Jersey / Passaic

Frost dates in Passaic, NJ

The station on this page is TETERBORO AP, NJ US (USW00094741), 3.6 miles from the city point. Population in the Census 2024 estimate is 70,722.

Zone 7bUSDA average annual extreme minimum 5°F to 10°F, from ZIP 07055 (0 miles from the city point used on this page).

Median last 32°F is April 3. Median first 32°F is November 4. The 50% growing-season length is 215 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

ProbabilityDateHow to read it
90%March 20Earlier date. A last 32°F on or after this day is common.
50%April 3Median.
10%April 16Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

ProbabilityDateHow to read it
10%October 21Earlier date. A first 32°F on or before this day is uncommon.
50%November 4Median.
90%November 20Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this longDays
10%233
50%215
90%195

28°F threshold

10%50%90%
Last, on or afterApril 4March 23March 7
First, on or beforeNovember 2November 16December 4
Season at least263 days239 days218 days

36°F threshold

10%50%90%
Last, on or afterMay 2April 16April 3
First, on or beforeOctober 10October 24November 6
Season at least209 days190 days169 days

Station TETERBORO AP, NJ US (USW00094741). Completeness flag R, 23 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 2.7 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Planting calendar for Passaic · Zone 7b

Check a crop against this station

Passaic, NJ

Zone 7bAverage annual extreme minimum 5°F to 10°F

Median last 32°F is April 3. Median first 32°F is November 4. The 50% growing-season length is 215 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

New Jersey. Nearest qualified station: TETERBORO AP, NJ US (USW00094741), 3.6 miles. Median last 32°F April 3. Median first 32°F November 4. The 50% growing-season length is 215 days.

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32°F probabilities at this station
10%50%90%
Last 32°F on or afterApril 16April 3March 20
First 32°F on or beforeOctober 21November 4November 20

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from Rutgers NJAES, FS129: Planning a Vegetable Garden, retrieved 2026-10-10. The fact sheet gives one statewide month list. Footnote dated April 2020: Mr=March; Ap=April; Ma=May; Ju=June; Jl=July; Au=August; Se=September. Consecutive months are stored as one range; a gap, such as April and July, stays two windows.

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