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🍂 First Frost Dates for Charleston, South Carolina 29409

The first 36°F frost date is 30% likely to be on Dec 3. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Dec 15. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Charleston, SC 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% chanceNov 22
20% chanceNov 29
30% chanceDec 3
40% chanceDec 6
50% chanceDec 10
60% chanceDec 15
70% chanceDec 19
80% chanceDec 24
90% chanceJan 1
Probability of light freeze (32°F) on or before...
10% chanceDec 4
20% chanceDec 10
30% chanceDec 15
40% chanceDec 19
50% chanceDec 24
60% chanceDec 28
70% chanceJan 2
80% chanceJan 10
90% chanceJan 20
Probability of moderate freeze (28°F) on or before...
10% chanceDec 12
20% chanceDec 18
30% chanceDec 24
40% chanceDec 29
50% chanceJan 2
60% chanceJan 8
70% chanceJan 16
80% chanceJan 23
90% chanceFeb 1
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 15
20% chanceDec 24
30% chanceDec 30
40% chanceJan 4
50% chanceJan 10
60% chanceJan 17
70% chanceJan 23
80% chanceJan 28
90% chanceFeb 5
Probability of hard freeze (20°F) on or before...
10% chanceDec 27
20% chanceJan 1
30% chanceJan 5
40% chanceJan 10
50% chanceJan 17
60% chanceJan 21
70% chanceJan 25
80% chanceJan 30
90% chanceFeb 6
Probability of severe hard freeze (16°F) on or before...
10% chancerarely
20% chancerarely
30% chancerarely
40% chancerarely
50% chancerarely
60% chancerarely
70% chancerarely
80% chancerarely
90% chancerarely

Agricultural climatic data from weather station: CHARLESTON CITY (USW00013782)

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