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🍂 First Frost Dates for Jefferson, Ohio 44047

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 12. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Jefferson, OH 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 4
60% chanceOct 7
70% chanceOct 10
80% chanceOct 15
90% chanceOct 22
Probability of light freeze (32°F) on or before...
10% chanceOct 1
20% chanceOct 7
30% chanceOct 12
40% chanceOct 17
50% chanceOct 21
60% chanceOct 25
70% chanceOct 29
80% chanceNov 1
90% chanceNov 6
Probability of moderate freeze (28°F) on or before...
10% chanceOct 18
20% chanceOct 24
30% chanceOct 30
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 11
80% chanceNov 15
90% chanceNov 21
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 1
20% chanceNov 5
30% chanceNov 10
40% chanceNov 14
50% chanceNov 18
60% chanceNov 22
70% chanceNov 26
80% chanceDec 1
90% chanceDec 6
Probability of hard freeze (20°F) on or before...
10% chanceNov 12
20% chanceNov 19
30% chanceNov 24
40% chanceNov 28
50% chanceDec 1
60% chanceDec 5
70% chanceDec 8
80% chanceDec 13
90% chanceDec 19
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 23
20% chanceNov 30
30% chanceDec 4
40% chanceDec 7
50% chanceDec 11
60% chanceDec 14
70% chanceDec 18
80% chanceDec 22
90% chanceDec 28

Agricultural climatic data from weather station: ASHTABULA CO AP (USW00004857)

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