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🍂 First Frost Dates for Imler, Pennsylvania 16655

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 2. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

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

Agricultural climatic data from weather station: SHAWNEE SP (USC00368011)

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