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🍂 First Frost Dates for Lee, Maine 04455

The first 36°F frost date is 30% likely to be on Sep 8. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 23. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Lee, ME 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% chanceAug 31
20% chanceSep 4
30% chanceSep 8
40% chanceSep 12
50% chanceSep 15
60% chanceSep 18
70% chanceSep 21
80% chanceSep 25
90% chanceSep 29
Probability of light freeze (32°F) on or before...
10% chanceSep 13
20% chanceSep 19
30% chanceSep 23
40% chanceSep 26
50% chanceSep 29
60% chanceOct 1
70% chanceOct 3
80% chanceOct 6
90% chanceOct 11
Probability of moderate freeze (28°F) on or before...
10% chanceSep 26
20% chanceOct 1
30% chanceOct 3
40% chanceOct 6
50% chanceOct 8
60% chanceOct 11
70% chanceOct 14
80% chanceOct 18
90% chanceOct 24
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 5
20% chanceOct 11
30% chanceOct 15
40% chanceOct 18
50% chanceOct 22
60% chanceOct 25
70% chanceOct 29
80% chanceNov 1
90% chanceNov 6
Probability of hard freeze (20°F) on or before...
10% chanceOct 19
20% chanceOct 25
30% chanceOct 29
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 10
80% chanceNov 14
90% chanceNov 19
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 3
20% chanceNov 7
30% chanceNov 11
40% chanceNov 14
50% chanceNov 17
60% chanceNov 20
70% chanceNov 23
80% chanceNov 25
90% chanceNov 29

Agricultural climatic data from weather station: SPRINGFIELD (USC00178353)

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