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🍂 First Frost Dates for Tenafly, New Jersey 07670

The first 36°F frost date is 30% likely to be on Oct 17. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 29. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Tenafly, NJ are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

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What is a First Frost Date?

The first fall frost signals the end of your local growing season. This date serves as an important deadline for gardeners and farmers. You'll need to complete harvesting before this point. Annuals and other tender plants will die back when frost hits, and perennial plants will enter their dormant phase for winter. Meanwhile, it's time to enjoy a cup of hot cocoa and a cozy sweater—and start planning your spring garden!

How to use the First Frost Date?

Watch your local weather forecasts in early fall to predict the first frost date. Harvest tender crops and protect vulnerable plants before frost arrives. For late-summer plantings, count backward from your area's average first frost date. This ensures your crops have enough time to mature. Keep track of when frost actually occurs in your garden each year. This helps you identify protected spots where the growing season might last longer.

First Frost Date Probabilities

Probability of frost (36°F) on or before...
10% chanceOct 8
20% chanceOct 13
30% chanceOct 17
40% chanceOct 20
50% chanceOct 23
60% chanceOct 26
70% chanceOct 29
80% chanceNov 2
90% chanceNov 6
Probability of light freeze (32°F) on or before...
10% chanceOct 18
20% chanceOct 25
30% chanceOct 29
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 10
80% chanceNov 13
90% chanceNov 18
Probability of moderate freeze (28°F) on or before...
10% chanceNov 1
20% chanceNov 7
30% chanceNov 11
40% chanceNov 14
50% chanceNov 17
60% chanceNov 20
70% chanceNov 23
80% chanceNov 27
90% chanceDec 3
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 14
20% chanceNov 20
30% chanceNov 24
40% chanceNov 28
50% chanceDec 1
60% chanceDec 4
70% chanceDec 7
80% chanceDec 11
90% chanceDec 17
Probability of hard freeze (20°F) on or before...
10% chanceNov 28
20% chanceDec 3
30% chanceDec 6
40% chanceDec 10
50% chanceDec 14
60% chanceDec 17
70% chanceDec 21
80% chanceDec 25
90% chanceDec 31
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 7
20% chanceDec 13
30% chanceDec 18
40% chanceDec 22
50% chanceDec 26
60% chanceDec 30
70% chanceJan 3
80% chanceJan 8
90% chanceJan 17

Agricultural climatic data from weather station: TETERBORO AP (USW00094741)

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