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🍂 First Frost Dates for Delmont, New Jersey 08314

The first 36°F frost date is 30% likely to be on Sep 28. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 6. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Delmont, 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% chanceSep 18
20% chanceSep 23
30% chanceSep 28
40% chanceOct 1
50% chanceOct 3
60% chanceOct 5
70% chanceOct 8
80% chanceOct 11
90% chanceOct 17
Probability of light freeze (32°F) on or before...
10% chanceSep 29
20% chanceOct 3
30% chanceOct 6
40% chanceOct 9
50% chanceOct 13
60% chanceOct 16
70% chanceOct 20
80% chanceOct 23
90% chanceOct 29
Probability of moderate freeze (28°F) on or before...
10% chanceOct 7
20% chanceOct 13
30% chanceOct 17
40% chanceOct 22
50% chanceOct 26
60% chanceOct 29
70% chanceNov 1
80% chanceNov 5
90% chanceNov 11
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 20
20% chanceOct 27
30% chanceNov 1
40% chanceNov 4
50% chanceNov 7
60% chanceNov 10
70% chanceNov 14
80% chanceNov 18
90% chanceNov 24
Probability of hard freeze (20°F) on or before...
10% chanceNov 2
20% chanceNov 7
30% chanceNov 13
40% chanceNov 17
50% chanceNov 20
60% chanceNov 24
70% chanceNov 29
80% chanceDec 2
90% chanceDec 8
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 14
20% chanceNov 21
30% chanceNov 26
40% chanceDec 1
50% chanceDec 3
60% chanceDec 7
70% chanceDec 11
80% chanceDec 16
90% chanceDec 23

Agricultural climatic data from weather station: BELLEPLAIN STN FOREST (USC00280690)

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