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🍂 First Frost Dates for Nett Lake, Minnesota 55772

The first 36°F frost date is 30% likely to be on Sep 7. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 18. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Nett Lake, 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% chanceAug 27
20% chanceSep 2
30% chanceSep 7
40% chanceSep 10
50% chanceSep 13
60% chanceSep 15
70% chanceSep 18
80% chanceSep 21
90% chanceSep 24
Probability of light freeze (32°F) on or before...
10% chanceSep 10
20% chanceSep 15
30% chanceSep 18
40% chanceSep 20
50% chanceSep 22
60% chanceSep 25
70% chanceSep 27
80% chanceSep 30
90% chanceOct 3
Probability of moderate freeze (28°F) on or before...
10% chanceSep 21
20% chanceSep 25
30% chanceSep 28
40% chanceSep 30
50% chanceOct 2
60% chanceOct 4
70% chanceOct 7
80% chanceOct 10
90% chanceOct 16
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 1
20% chanceOct 4
30% chanceOct 7
40% chanceOct 10
50% chanceOct 14
60% chanceOct 17
70% chanceOct 21
80% chanceOct 25
90% chanceOct 31
Probability of hard freeze (20°F) on or before...
10% chanceOct 9
20% chanceOct 15
30% chanceOct 19
40% chanceOct 23
50% chanceOct 27
60% chanceOct 30
70% chanceNov 1
80% chanceNov 5
90% chanceNov 10
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 20
20% chanceOct 26
30% chanceOct 30
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 10
80% chanceNov 13
90% chanceNov 18

Agricultural climatic data from weather station: COOK 18 W (USC00211776)

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