🍂 2026 First Frost Dates for Rosedale, Maryland 21237
The first 36°F frost date is 30% likely to be on Nov 4. (See detailed probabilities below.)
The first 32°F light freeze date is 30% likely to be on Nov 15. (See detailed probabilities below.)
(See also 🌷 Last Spring Frost Dates.)
First frost date probabilities for Rosedale, MD 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 29 |
| 20% chance | Nov 1 |
| 30% chance | Nov 4 |
| 40% chance | Nov 7 |
| 50% chance | Nov 10 |
| 60% chance | Nov 12 |
| 70% chance | Nov 15 |
| 80% chance | Nov 18 |
| 90% chance | Nov 24 |
| Probability of light freeze (32°F) on or before... | |
|---|---|
| 10% chance | Nov 7 |
| 20% chance | Nov 11 |
| 30% chance | Nov 15 |
| 40% chance | Nov 18 |
| 50% chance | Nov 21 |
| 60% chance | Nov 25 |
| 70% chance | Nov 29 |
| 80% chance | Dec 2 |
| 90% chance | Dec 8 |
| Probability of moderate freeze (28°F) on or before... | |
|---|---|
| 10% chance | Nov 18 |
| 20% chance | Nov 24 |
| 30% chance | Nov 28 |
| 40% chance | Dec 2 |
| 50% chance | Dec 5 |
| 60% chance | Dec 9 |
| 70% chance | Dec 14 |
| 80% chance | Dec 19 |
| 90% chance | Dec 25 |
| Probability of moderate hard freeze (24°F) on or before... | |
|---|---|
| 10% chance | Dec 1 |
| 20% chance | Dec 8 |
| 30% chance | Dec 13 |
| 40% chance | Dec 19 |
| 50% chance | Dec 23 |
| 60% chance | Dec 26 |
| 70% chance | Dec 31 |
| 80% chance | Jan 5 |
| 90% chance | Jan 12 |
| Probability of hard freeze (20°F) on or before... | |
|---|---|
| 10% chance | Dec 11 |
| 20% chance | Dec 20 |
| 30% chance | Dec 26 |
| 40% chance | Dec 31 |
| 50% chance | Jan 4 |
| 60% chance | Jan 8 |
| 70% chance | Jan 12 |
| 80% chance | Jan 17 |
| 90% chance | Jan 28 |
| Probability of severe hard freeze (16°F) on or before... | |
|---|---|
| 10% chance | Dec 23 |
| 20% chance | Dec 31 |
| 30% chance | Jan 5 |
| 40% chance | Jan 9 |
| 50% chance | Jan 13 |
| 60% chance | Jan 17 |
| 70% chance | Jan 23 |
| 80% chance | Jan 29 |
| 90% chance | Feb 7 |
Agricultural climatic data from weather station: MD SCI CTR BALTIMORE (USW00093784:frost)