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🍂 First Frost Dates for Laona, Wisconsin 54541

The first 36°F frost date is 30% likely to be on Sep 6. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 19. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Laona, WI 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 25
20% chanceSep 1
30% chanceSep 6
40% chanceSep 10
50% chanceSep 13
60% chanceSep 16
70% chanceSep 19
80% chanceSep 23
90% chanceSep 27
Probability of light freeze (32°F) on or before...
10% chanceSep 9
20% chanceSep 15
30% chanceSep 19
40% chanceSep 22
50% chanceSep 24
60% chanceSep 27
70% chanceSep 30
80% chanceOct 2
90% chanceOct 6
Probability of moderate freeze (28°F) on or before...
10% chanceSep 21
20% chanceSep 26
30% chanceSep 29
40% chanceOct 1
50% chanceOct 4
60% chanceOct 6
70% chanceOct 10
80% chanceOct 14
90% chanceOct 20
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 1
20% chanceOct 6
30% chanceOct 10
40% chanceOct 13
50% chanceOct 17
60% chanceOct 20
70% chanceOct 25
80% chanceOct 29
90% chanceNov 2
Probability of hard freeze (20°F) on or before...
10% chanceOct 14
20% chanceOct 19
30% chanceOct 23
40% chanceOct 27
50% chanceOct 30
60% chanceNov 1
70% chanceNov 4
80% chanceNov 8
90% chanceNov 13
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 25
20% chanceOct 30
30% chanceNov 1
40% chanceNov 5
50% chanceNov 7
60% chanceNov 11
70% chanceNov 14
80% chanceNov 17
90% chanceNov 22

Agricultural climatic data from weather station: LAONA 6 SW (USC00474582)

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