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🍂 First Frost Dates for McConnellsburg, Pennsylvania 17233

The first 36°F frost date is 30% likely to be on Sep 28. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 7. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for McConnellsburg, 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 18
20% chanceSep 24
30% chanceSep 28
40% chanceOct 1
50% chanceOct 2
60% chanceOct 5
70% chanceOct 8
80% chanceOct 12
90% chanceOct 17
Probability of light freeze (32°F) on or before...
10% chanceOct 1
20% chanceOct 4
30% chanceOct 7
40% chanceOct 11
50% chanceOct 14
60% chanceOct 17
70% chanceOct 21
80% chanceOct 25
90% chanceNov 1
Probability of moderate freeze (28°F) on or before...
10% chanceOct 9
20% chanceOct 15
30% chanceOct 19
40% chanceOct 23
50% chanceOct 27
60% chanceOct 30
70% chanceNov 2
80% chanceNov 5
90% chanceNov 10
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 24
Probability of hard freeze (20°F) on or before...
10% chanceNov 2
20% chanceNov 8
30% chanceNov 12
40% chanceNov 16
50% chanceNov 20
60% chanceNov 24
70% chanceNov 28
80% chanceDec 1
90% chanceDec 7
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 14
20% chanceNov 21
30% chanceNov 27
40% chanceDec 1
50% chanceDec 3
60% chanceDec 6
70% chanceDec 11
80% chanceDec 15
90% chanceDec 21

Agricultural climatic data from weather station: HANCOCK (USC00184030)

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