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🍂 First Frost Dates for Darwin, California 93522

The first 36°F frost date is 30% likely to be on Oct 25. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 7. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Darwin, CA 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 14
20% chanceOct 20
30% chanceOct 25
40% chanceOct 29
50% chanceNov 1
60% chanceNov 5
70% chanceNov 9
80% chanceNov 13
90% chanceNov 17
Probability of light freeze (32°F) on or before...
10% chanceOct 26
20% chanceNov 1
30% chanceNov 7
40% chanceNov 11
50% chanceNov 14
60% chanceNov 17
70% chanceNov 20
80% chanceNov 24
90% chanceNov 29
Probability of moderate freeze (28°F) on or before...
10% chanceNov 8
20% chanceNov 15
30% chanceNov 19
40% chanceNov 23
50% chanceNov 26
60% chanceNov 30
70% chanceDec 3
80% chanceDec 7
90% chanceDec 12
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 20
20% chanceNov 26
30% chanceDec 1
40% chanceDec 5
50% chanceDec 8
60% chanceDec 12
70% chanceDec 17
80% chanceDec 23
90% chanceJan 1
Probability of hard freeze (20°F) on or before...
10% chanceDec 1
20% chanceDec 8
30% chanceDec 14
40% chanceDec 20
50% chanceDec 27
60% chanceJan 2
70% chanceJan 9
80% chanceJan 20
90% chanceFeb 4
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 10
20% chanceDec 17
30% chanceDec 24
40% chanceDec 30
50% chanceJan 3
60% chanceJan 10
70% chanceJan 20
80% chanceJan 31
90% chanceFeb 11

Agricultural climatic data from weather station: WILDROSE RS (USC00049671)

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