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🍂 First Frost Dates for Maple Grove, Minnesota 55311

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 Sep 29. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Maple Grove, MN 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 16
20% chanceSep 20
30% chanceSep 22
40% chanceSep 25
50% chanceSep 27
60% chanceSep 29
70% chanceOct 1
80% chanceOct 4
90% chanceOct 7
Probability of light freeze (32°F) on or before...
10% chanceSep 22
20% chanceSep 27
30% chanceSep 29
40% chanceOct 2
50% chanceOct 4
60% chanceOct 7
70% chanceOct 9
80% chanceOct 12
90% chanceOct 17
Probability of moderate freeze (28°F) on or before...
10% chanceOct 1
20% chanceOct 5
30% chanceOct 8
40% chanceOct 12
50% chanceOct 14
60% chanceOct 17
70% chanceOct 21
80% chanceOct 24
90% chanceOct 29
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 10
20% chanceOct 16
30% chanceOct 20
40% chanceOct 23
50% chanceOct 27
60% chanceOct 30
70% chanceNov 1
80% chanceNov 4
90% chanceNov 9
Probability of hard freeze (20°F) on or before...
10% chanceOct 23
20% chanceOct 28
30% chanceNov 1
40% chanceNov 2
50% chanceNov 5
60% chanceNov 8
70% chanceNov 11
80% chanceNov 14
90% chanceNov 19
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 1
20% chanceNov 5
30% chanceNov 8
40% chanceNov 11
50% chanceNov 14
60% chanceNov 17
70% chanceNov 20
80% chanceNov 23
90% chanceNov 28

Agricultural climatic data from weather station: MPLS CRYSTAL AP (USW00094960)

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