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🍂 First Frost Dates for Troutville, Pennsylvania 15866

The first 36°F frost date is 30% likely to be on Sep 22. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 3. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Troutville, PA 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% chanceSep 12
20% chanceSep 19
30% chanceSep 22
40% chanceSep 25
50% chanceSep 28
60% chanceSep 30
70% chanceOct 2
80% chanceOct 5
90% chanceOct 10
Probability of light freeze (32°F) on or before...
10% chanceSep 25
20% chanceSep 30
30% chanceOct 3
40% chanceOct 5
50% chanceOct 8
60% chanceOct 11
70% chanceOct 15
80% chanceOct 20
90% chanceOct 27
Probability of moderate freeze (28°F) on or before...
10% chanceOct 6
20% chanceOct 12
30% chanceOct 17
40% chanceOct 20
50% chanceOct 25
60% chanceOct 29
70% chanceNov 1
80% chanceNov 4
90% chanceNov 9
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 21
20% chanceOct 27
30% chanceNov 1
40% chanceNov 3
50% chanceNov 6
60% chanceNov 10
70% chanceNov 13
80% chanceNov 17
90% chanceNov 22
Probability of hard freeze (20°F) on or before...
10% chanceNov 2
20% chanceNov 7
30% chanceNov 11
40% chanceNov 15
50% chanceNov 18
60% chanceNov 22
70% chanceNov 26
80% chanceNov 30
90% chanceDec 5
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 12
20% chanceNov 18
30% chanceNov 22
40% chanceNov 27
50% chanceNov 30
60% chanceDec 3
70% chanceDec 6
80% chanceDec 11
90% chanceDec 18

Agricultural climatic data from weather station: DUBOIS JEFFERSON CO AP (USW00004787)

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