🍂 2026 First Frost Dates for Adelanto, California 92301
The first 36°F frost date is 30% likely to be on Oct 26. (See detailed probabilities below.)
The first 32°F light freeze date is 30% likely to be on Nov 5. (See detailed probabilities below.)
(See also 🌷 Last Spring Frost Dates.)
First frost date probabilities for Adelanto, 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 | Oct 16 |
| 20% chance | Oct 22 |
| 30% chance | Oct 26 |
| 40% chance | Oct 29 |
| 50% chance | Nov 1 |
| 60% chance | Nov 3 |
| 70% chance | Nov 6 |
| 80% chance | Nov 10 |
| 90% chance | Nov 16 |
| Probability of light freeze (32°F) on or before... | |
|---|---|
| 10% chance | Oct 28 |
| 20% chance | Nov 1 |
| 30% chance | Nov 5 |
| 40% chance | Nov 9 |
| 50% chance | Nov 12 |
| 60% chance | Nov 16 |
| 70% chance | Nov 20 |
| 80% chance | Nov 24 |
| 90% chance | Dec 1 |
| Probability of moderate freeze (28°F) on or before... | |
|---|---|
| 10% chance | Nov 9 |
| 20% chance | Nov 16 |
| 30% chance | Nov 20 |
| 40% chance | Nov 24 |
| 50% chance | Nov 27 |
| 60% chance | Dec 1 |
| 70% chance | Dec 3 |
| 80% chance | Dec 6 |
| 90% chance | Dec 11 |
| Probability of moderate hard freeze (24°F) on or before... | |
|---|---|
| 10% chance | Nov 22 |
| 20% chance | Nov 28 |
| 30% chance | Dec 1 |
| 40% chance | Dec 5 |
| 50% chance | Dec 8 |
| 60% chance | Dec 12 |
| 70% chance | Dec 16 |
| 80% chance | Dec 22 |
| 90% chance | Dec 29 |
| Probability of hard freeze (20°F) on or before... | |
|---|---|
| 10% chance | Dec 2 |
| 20% chance | Dec 6 |
| 30% chance | Dec 11 |
| 40% chance | Dec 15 |
| 50% chance | Dec 20 |
| 60% chance | Dec 24 |
| 70% chance | Dec 29 |
| 80% chance | Jan 3 |
| 90% chance | Jan 13 |
| Probability of severe hard freeze (16°F) on or before... | |
|---|---|
| 10% chance | Dec 6 |
| 20% chance | Dec 11 |
| 30% chance | Dec 15 |
| 40% chance | Dec 20 |
| 50% chance | Dec 26 |
| 60% chance | Dec 30 |
| 70% chance | Jan 1 |
| 80% chance | Jan 5 |
| 90% chance | Jan 12 |
Agricultural climatic data from weather station: EL MIRAGE (USC00042771:frost)