🍂 2026 First Frost Dates for Brightwaters, New York 11718
The first 36°F frost date is 30% likely to be on Oct 21. (See detailed probabilities below.)
The first 32°F light freeze date is 30% likely to be on Nov 1. (See detailed probabilities below.)
(See also 🌷 Last Spring Frost Dates.)
First frost date probabilities for Brightwaters, NY 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 12 |
| 20% chance | Oct 17 |
| 30% chance | Oct 21 |
| 40% chance | Oct 24 |
| 50% chance | Oct 26 |
| 60% chance | Oct 29 |
| 70% chance | Nov 1 |
| 80% chance | Nov 4 |
| 90% chance | Nov 9 |
| Probability of light freeze (32°F) on or before... | |
|---|---|
| 10% chance | Oct 25 |
| 20% chance | Oct 30 |
| 30% chance | Nov 1 |
| 40% chance | Nov 4 |
| 50% chance | Nov 6 |
| 60% chance | Nov 9 |
| 70% chance | Nov 12 |
| 80% chance | Nov 16 |
| 90% chance | Nov 21 |
| Probability of moderate freeze (28°F) on or before... | |
|---|---|
| 10% chance | Nov 5 |
| 20% chance | Nov 9 |
| 30% chance | Nov 12 |
| 40% chance | Nov 16 |
| 50% chance | Nov 19 |
| 60% chance | Nov 22 |
| 70% chance | Nov 26 |
| 80% chance | Nov 30 |
| 90% chance | Dec 5 |
| Probability of moderate hard freeze (24°F) on or before... | |
|---|---|
| 10% chance | Nov 15 |
| 20% chance | Nov 20 |
| 30% chance | Nov 26 |
| 40% chance | Nov 29 |
| 50% chance | Dec 2 |
| 60% chance | Dec 5 |
| 70% chance | Dec 8 |
| 80% chance | Dec 13 |
| 90% chance | Dec 19 |
| Probability of hard freeze (20°F) on or before... | |
|---|---|
| 10% chance | Nov 28 |
| 20% chance | Dec 2 |
| 30% chance | Dec 6 |
| 40% chance | Dec 10 |
| 50% chance | Dec 14 |
| 60% chance | Dec 19 |
| 70% chance | Dec 23 |
| 80% chance | Dec 29 |
| 90% chance | Jan 3 |
| Probability of severe hard freeze (16°F) on or before... | |
|---|---|
| 10% chance | Dec 8 |
| 20% chance | Dec 16 |
| 30% chance | Dec 22 |
| 40% chance | Dec 27 |
| 50% chance | Jan 1 |
| 60% chance | Jan 3 |
| 70% chance | Jan 7 |
| 80% chance | Jan 13 |
| 90% chance | Jan 22 |
Agricultural climatic data from weather station: FARMINGDALE AP (USW00054787:frost)