🍂 2026 First Frost Dates for Oceanside, California 92057

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CA
Oceanside
🍂 2026 First Fall Frost Dates

The first 36°F frost date is 30% likely to be on Dec 14. (See detailed probabilities below.)

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

First frost date probabilities for Oceanside, 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% chance	Dec 4
20% chance	Dec 10
30% chance	Dec 14
40% chance	Dec 19
50% chance	Dec 25
60% chance	Dec 30
70% chance	Jan 4
80% chance	Jan 20
90% chance	Feb 9

Probability of light freeze (32°F) on or before...
10% chance	Dec 14
20% chance	Dec 19
30% chance	Dec 24
40% chance	Dec 30
50% chance	Jan 7
60% chance	Jan 28
70% chance	Feb 15
80% chance	Feb 27
90% chance	Mar 14

Probability of moderate freeze (28°F) on or before...
10% chance	Dec 13
20% chance	Dec 16
30% chance	Dec 20
40% chance	Dec 22
50% chance	Dec 30
60% chance	Feb 9
70% chance	Mar 3
80% chance	Mar 10
90% chance	Mar 16

Probability of moderate hard freeze (24°F) on or before...
10% chance	rarely
20% chance	rarely
30% chance	rarely
40% chance	rarely
50% chance	rarely
60% chance	rarely
70% chance	rarely
80% chance	rarely
90% chance	rarely

Probability of hard freeze (20°F) on or before...
10% chance	rarely
20% chance	rarely
30% chance	rarely
40% chance	rarely
50% chance	rarely
60% chance	rarely
70% chance	rarely
80% chance	rarely
90% chance	rarely

Probability of severe hard freeze (16°F) on or before...
10% chance	rarely
20% chance	rarely
30% chance	rarely
40% chance	rarely
50% chance	rarely
60% chance	rarely
70% chance	rarely
80% chance	rarely
90% chance	rarely

Agricultural climatic data from weather station: VISTA (USC00049378:frost)

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