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🍂 First Frost Dates for Long Barn, California 95335

The first 36°F frost date is 30% likely to be on Oct 9. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 24. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Long Barn, 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% chanceSep 29
20% chanceOct 5
30% chanceOct 9
40% chanceOct 13
50% chanceOct 17
60% chanceOct 21
70% chanceOct 26
80% chanceNov 1
90% chanceNov 6
Probability of light freeze (32°F) on or before...
10% chanceOct 10
20% chanceOct 18
30% chanceOct 24
40% chanceOct 29
50% chanceNov 1
60% chanceNov 5
70% chanceNov 9
80% chanceNov 13
90% chanceNov 19
Probability of moderate freeze (28°F) on or before...
10% chanceOct 29
20% chanceNov 4
30% chanceNov 9
40% chanceNov 13
50% chanceNov 16
60% chanceNov 20
70% chanceNov 24
80% chanceNov 28
90% chanceDec 5
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 12
20% chanceNov 18
30% chanceNov 23
40% chanceNov 27
50% chanceDec 1
60% chanceDec 5
70% chanceDec 10
80% chanceDec 16
90% chanceDec 24
Probability of hard freeze (20°F) on or before...
10% chanceNov 24
20% chanceDec 1
30% chanceDec 8
40% chanceDec 13
50% chanceDec 20
60% chanceDec 26
70% chanceJan 1
80% chanceJan 10
90% chanceJan 25
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 7
20% chanceDec 18
30% chanceDec 26
40% chanceJan 1
50% chanceJan 5
60% chanceJan 12
70% chanceJan 20
80% chanceFeb 1
90% chanceFeb 19

Agricultural climatic data from weather station: CHERRY VALLEY DAM (USC00041697)

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