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🍂 First Frost Dates for Marfa, Texas 79843

The first 36°F frost date is 30% likely to be on Oct 11. (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 Marfa, 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% chanceOct 2
20% chanceOct 7
30% chanceOct 11
40% chanceOct 14
50% chanceOct 17
60% chanceOct 20
70% chanceOct 23
80% chanceOct 26
90% chanceOct 31
Probability of light freeze (32°F) on or before...
10% chanceOct 11
20% chanceOct 16
30% chanceOct 20
40% chanceOct 23
50% chanceOct 25
60% chanceOct 28
70% chanceOct 31
80% chanceNov 3
90% chanceNov 7
Probability of moderate freeze (28°F) on or before...
10% chanceOct 18
20% chanceOct 23
30% chanceOct 27
40% chanceOct 30
50% chanceNov 2
60% chanceNov 5
70% chanceNov 8
80% chanceNov 11
90% chanceNov 15
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 27
20% chanceNov 1
30% chanceNov 6
40% chanceNov 9
50% chanceNov 12
60% chanceNov 14
70% chanceNov 17
80% chanceNov 21
90% chanceNov 27
Probability of hard freeze (20°F) on or before...
10% chanceNov 8
20% chanceNov 13
30% chanceNov 17
40% chanceNov 20
50% chanceNov 23
60% chanceNov 27
70% chanceDec 1
80% chanceDec 4
90% chanceDec 8
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 19
20% chanceNov 24
30% chanceNov 29
40% chanceDec 1
50% chanceDec 4
60% chanceDec 7
70% chanceDec 11
80% chanceDec 16
90% chanceDec 22

Agricultural climatic data from weather station: MARFA 3W (USC00415596)

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