🍂 2026 First Frost Dates for North Brunswick, New Jersey 08902
The first 36°F frost date is 30% likely to be on Oct 9. (See detailed probabilities below.)
The first 32°F light freeze date is 30% likely to be on Oct 20. (See detailed probabilities below.)
(See also 🌷 Last Spring Frost Dates.)
First frost date probabilities for North Brunswick, NJ 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 6 |
| 30% chance | Oct 9 |
| 40% chance | Oct 12 |
| 50% chance | Oct 14 |
| 60% chance | Oct 17 |
| 70% chance | Oct 20 |
| 80% chance | Oct 24 |
| 90% chance | Oct 30 |
| Probability of light freeze (32°F) on or before... | |
|---|---|
| 10% chance | Oct 11 |
| 20% chance | Oct 15 |
| 30% chance | Oct 20 |
| 40% chance | Oct 23 |
| 50% chance | Oct 26 |
| 60% chance | Oct 29 |
| 70% chance | Nov 1 |
| 80% chance | Nov 3 |
| 90% chance | Nov 8 |
| Probability of moderate freeze (28°F) on or before... | |
|---|---|
| 10% chance | Oct 23 |
| 20% chance | Oct 28 |
| 30% chance | Nov 1 |
| 40% chance | Nov 4 |
| 50% chance | Nov 7 |
| 60% chance | Nov 10 |
| 70% chance | Nov 13 |
| 80% chance | Nov 17 |
| 90% chance | Nov 23 |
| Probability of moderate hard freeze (24°F) on or before... | |
|---|---|
| 10% chance | Nov 5 |
| 20% chance | Nov 11 |
| 30% chance | Nov 14 |
| 40% chance | Nov 17 |
| 50% chance | Nov 20 |
| 60% chance | Nov 23 |
| 70% chance | Nov 28 |
| 80% chance | Dec 2 |
| 90% chance | Dec 8 |
| Probability of hard freeze (20°F) on or before... | |
|---|---|
| 10% chance | Nov 16 |
| 20% chance | Nov 21 |
| 30% chance | Nov 26 |
| 40% chance | Nov 30 |
| 50% chance | Dec 3 |
| 60% chance | Dec 7 |
| 70% chance | Dec 11 |
| 80% chance | Dec 18 |
| 90% chance | Dec 24 |
| Probability of severe hard freeze (16°F) on or before... | |
|---|---|
| 10% chance | Dec 1 |
| 20% chance | Dec 5 |
| 30% chance | Dec 10 |
| 40% chance | Dec 17 |
| 50% chance | Dec 21 |
| 60% chance | Dec 25 |
| 70% chance | Dec 30 |
| 80% chance | Jan 3 |
| 90% chance | Jan 12 |
Agricultural climatic data from weather station: NEW BRUNSWICK 3 SE (USC00286055:frost)