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🍂 First Frost Dates for Athens, Pennsylvania 18810

The first 36°F frost date is 30% likely to be on Sep 17. (See detailed probabilities below.)

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

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Athens, 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 6
20% chanceSep 12
30% chanceSep 17
40% chanceSep 20
50% chanceSep 23
60% chanceSep 25
70% chanceSep 28
80% chanceOct 1
90% chanceOct 4
Probability of light freeze (32°F) on or before...
10% chanceSep 21
20% chanceSep 26
30% chanceSep 30
40% chanceOct 1
50% chanceOct 4
60% chanceOct 6
70% chanceOct 9
80% chanceOct 13
90% chanceOct 17
Probability of moderate freeze (28°F) on or before...
10% chanceOct 2
20% chanceOct 7
30% chanceOct 11
40% chanceOct 14
50% chanceOct 17
60% chanceOct 20
70% chanceOct 23
80% chanceOct 27
90% chanceNov 1
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 15
20% chanceOct 21
30% chanceOct 24
40% chanceOct 27
50% chanceOct 30
60% chanceNov 1
70% chanceNov 5
80% chanceNov 9
90% chanceNov 14
Probability of hard freeze (20°F) on or before...
10% chanceOct 27
20% chanceNov 1
30% chanceNov 5
40% chanceNov 8
50% chanceNov 12
60% chanceNov 15
70% chanceNov 18
80% chanceNov 22
90% chanceNov 27
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 8
20% chanceNov 14
30% chanceNov 18
40% chanceNov 21
50% chanceNov 24
60% chanceNov 28
70% chanceDec 1
80% chanceDec 5
90% chanceDec 12

Agricultural climatic data from weather station: WAVERLY (USC00309047)

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