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🍂 First Frost Dates for Walkersville, Maryland 21793

The first 36°F frost date is 30% likely to be on Oct 14. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 27. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Walkersville, 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% chanceOct 4
20% chanceOct 9
30% chanceOct 14
40% chanceOct 17
50% chanceOct 20
60% chanceOct 24
70% chanceOct 27
80% chanceNov 1
90% chanceNov 5
Probability of light freeze (32°F) on or before...
10% chanceOct 17
20% chanceOct 23
30% chanceOct 27
40% chanceOct 31
50% chanceNov 3
60% chanceNov 5
70% chanceNov 9
80% chanceNov 12
90% chanceNov 18
Probability of moderate freeze (28°F) on or before...
10% chanceNov 1
20% chanceNov 5
30% chanceNov 9
40% chanceNov 13
50% chanceNov 16
60% chanceNov 19
70% chanceNov 22
80% chanceNov 27
90% chanceDec 2
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 12
20% chanceNov 18
30% chanceNov 23
40% chanceNov 28
50% chanceDec 1
60% chanceDec 4
70% chanceDec 8
80% chanceDec 13
90% chanceDec 19
Probability of hard freeze (20°F) on or before...
10% chanceNov 28
20% chanceDec 2
30% chanceDec 6
40% chanceDec 10
50% chanceDec 14
60% chanceDec 18
70% chanceDec 22
80% chanceDec 27
90% chanceJan 1
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 7
20% chanceDec 13
30% chanceDec 17
40% chanceDec 22
50% chanceDec 26
60% chanceDec 30
70% chanceJan 3
80% chanceJan 9
90% chanceJan 19

Agricultural climatic data from weather station: FREDERICK POLICE BRKS (USC00183348)

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