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🍂 First Frost Dates for Rockport, Indiana 47635

The first 36°F frost date is 30% likely to be on Oct 10. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 20. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Rockport, IN 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 2
20% chanceOct 6
30% chanceOct 10
40% chanceOct 13
50% chanceOct 16
60% chanceOct 19
70% chanceOct 22
80% chanceOct 25
90% chanceOct 29
Probability of light freeze (32°F) on or before...
10% chanceOct 11
20% chanceOct 16
30% chanceOct 20
40% chanceOct 23
50% chanceOct 26
60% chanceOct 29
70% chanceNov 1
80% chanceNov 4
90% chanceNov 11
Probability of moderate freeze (28°F) on or before...
10% chanceOct 20
20% chanceOct 26
30% chanceOct 31
40% chanceNov 3
50% chanceNov 6
60% chanceNov 10
70% chanceNov 14
80% chanceNov 19
90% chanceNov 27
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 30
20% chanceNov 4
30% chanceNov 9
40% chanceNov 15
50% chanceNov 19
60% chanceNov 24
70% chanceNov 29
80% chanceDec 3
90% chanceDec 10
Probability of hard freeze (20°F) on or before...
10% chanceNov 7
20% chanceNov 17
30% chanceNov 24
40% chanceNov 29
50% chanceDec 2
60% chanceDec 6
70% chanceDec 10
80% chanceDec 16
90% chanceDec 23
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 26
20% chanceDec 2
30% chanceDec 6
40% chanceDec 10
50% chanceDec 15
60% chanceDec 19
70% chanceDec 23
80% chanceDec 28
90% chanceJan 4

Agricultural climatic data from weather station: OWENSBORO 1 W (USC00156091)

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