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🍂 First Frost Dates for Shelton, Connecticut 06484

The first 36°F frost date is 30% likely to be on Oct 15. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 28. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Shelton, CT 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 12
30% chanceOct 15
40% chanceOct 18
50% chanceOct 21
60% chanceOct 24
70% chanceOct 28
80% chanceNov 1
90% chanceNov 5
Probability of light freeze (32°F) on or before...
10% chanceOct 18
20% chanceOct 23
30% chanceOct 28
40% chanceOct 31
50% chanceNov 3
60% chanceNov 6
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 2
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 15
20% chanceNov 21
30% chanceNov 24
40% chanceNov 27
50% chanceDec 1
60% chanceDec 3
70% chanceDec 6
80% chanceDec 10
90% chanceDec 15
Probability of hard freeze (20°F) on or before...
10% chanceNov 28
20% chanceDec 2
30% chanceDec 5
40% chanceDec 8
50% chanceDec 12
60% chanceDec 15
70% chanceDec 19
80% chanceDec 23
90% chanceDec 29
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 6
20% chanceDec 11
30% chanceDec 16
40% chanceDec 20
50% chanceDec 24
60% chanceDec 28
70% chanceDec 31
80% chanceJan 4
90% chanceJan 13

Agricultural climatic data from weather station: BRIDGEPORT SIKORSKY MEM AP (USW00094702)

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