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🍂 First Frost Dates for Port O'Connor, Texas 77982

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 11. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Port O'Connor, TX 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 20
20% chanceNov 29
30% chanceDec 3
40% chanceDec 6
50% chanceDec 9
60% chanceDec 13
70% chanceDec 19
80% chanceDec 27
90% chanceJan 6
Probability of light freeze (32°F) on or before...
10% chanceDec 1
20% chanceDec 6
30% chanceDec 11
40% chanceDec 15
50% chanceDec 22
60% chanceDec 28
70% chanceJan 2
80% chanceJan 12
90% chanceJan 27
Probability of moderate freeze (28°F) on or before...
10% chanceDec 8
20% chanceDec 13
30% chanceDec 19
40% chanceDec 24
50% chanceDec 29
60% chanceJan 2
70% chanceJan 8
80% chanceJan 22
90% chanceFeb 3
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 11
20% chanceDec 17
30% chanceDec 22
40% chanceDec 26
50% chanceDec 30
60% chanceJan 1
70% chanceJan 6
80% chanceJan 19
90% chanceFeb 1
Probability of hard freeze (20°F) on or before...
10% chanceDec 13
20% chanceDec 19
30% chanceDec 24
40% chanceDec 28
50% chanceDec 30
60% chanceJan 1
70% chanceJan 7
80% chanceJan 16
90% chanceJan 25
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: PORT O'CONNOR (USC00417186)

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