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🍂 First Frost Dates for Delano, California 93215

The first 36°F frost date is 30% likely to be on Nov 5. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 18. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Delano, 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 28
20% chanceNov 2
30% chanceNov 5
40% chanceNov 9
50% chanceNov 11
60% chanceNov 14
70% chanceNov 16
80% chanceNov 20
90% chanceNov 24
Probability of light freeze (32°F) on or before...
10% chanceNov 11
20% chanceNov 15
30% chanceNov 18
40% chanceNov 21
50% chanceNov 24
60% chanceNov 27
70% chanceNov 30
80% chanceDec 3
90% chanceDec 9
Probability of moderate freeze (28°F) on or before...
10% chanceNov 22
20% chanceNov 27
30% chanceDec 1
40% chanceDec 3
50% chanceDec 6
60% chanceDec 10
70% chanceDec 15
80% chanceDec 22
90% chanceJan 3
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 1
20% chanceDec 5
30% chanceDec 9
40% chanceDec 13
50% chanceDec 17
60% chanceDec 24
70% chanceDec 30
80% chanceJan 4
90% chanceJan 16
Probability of hard freeze (20°F) on or before...
10% chanceDec 4
20% chanceDec 8
30% chanceDec 12
40% chanceDec 14
50% chanceDec 17
60% chanceDec 21
70% chanceDec 25
80% chanceDec 29
90% chanceJan 1
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: WASCO (USC00049452)

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