🍂 2026 First Frost Dates for Palmdale, California 93550
The first 36°F frost date is 30% likely to be on Oct 18. (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 Palmdale, 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 3 |
| 20% chance | Oct 13 |
| 30% chance | Oct 18 |
| 40% chance | Oct 24 |
| 50% chance | Oct 30 |
| 60% chance | Nov 3 |
| 70% chance | Nov 8 |
| 80% chance | Nov 13 |
| 90% chance | Nov 19 |
| Probability of light freeze (32°F) on or before... | |
|---|---|
| 10% chance | Oct 18 |
| 20% chance | Oct 29 |
| 30% chance | Nov 5 |
| 40% chance | Nov 10 |
| 50% chance | Nov 15 |
| 60% chance | Nov 20 |
| 70% chance | Nov 26 |
| 80% chance | Dec 2 |
| 90% chance | Dec 9 |
| Probability of moderate freeze (28°F) on or before... | |
|---|---|
| 10% chance | Nov 5 |
| 20% chance | Nov 14 |
| 30% chance | Nov 23 |
| 40% chance | Nov 30 |
| 50% chance | Dec 4 |
| 60% chance | Dec 8 |
| 70% chance | Dec 13 |
| 80% chance | Dec 18 |
| 90% chance | Dec 29 |
| Probability of moderate hard freeze (24°F) on or before... | |
|---|---|
| 10% chance | Nov 26 |
| 20% chance | Dec 3 |
| 30% chance | Dec 9 |
| 40% chance | Dec 16 |
| 50% chance | Dec 22 |
| 60% chance | Dec 28 |
| 70% chance | Jan 5 |
| 80% chance | Jan 25 |
| 90% chance | Feb 20 |
| Probability of hard freeze (20°F) on or before... | |
|---|---|
| 10% chance | Dec 6 |
| 20% chance | Dec 19 |
| 30% chance | Dec 27 |
| 40% chance | Jan 1 |
| 50% chance | Jan 10 |
| 60% chance | Jan 25 |
| 70% chance | Feb 7 |
| 80% chance | Feb 20 |
| 90% chance | Mar 13 |
| Probability of severe hard freeze (16°F) on or before... | |
|---|---|
| 10% chance | Dec 23 |
| 20% chance | Dec 28 |
| 30% chance | Jan 1 |
| 40% chance | Jan 6 |
| 50% chance | Jan 14 |
| 60% chance | Jan 26 |
| 70% chance | Jan 30 |
| 80% chance | Feb 6 |
| 90% chance | Feb 15 |
Agricultural climatic data from weather station: MT WILSON CBS (USC00046006:frost)