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🍂 First Frost Dates for Vesper, Wisconsin 54489

The first 36°F frost date is 30% likely to be on Sep 15. (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 Vesper, 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% chanceSep 6
20% chanceSep 11
30% chanceSep 15
40% chanceSep 18
50% chanceSep 20
60% chanceSep 22
70% chanceSep 24
80% chanceSep 27
90% chanceSep 30
Probability of light freeze (32°F) on or before...
10% chanceSep 16
20% chanceSep 20
30% chanceSep 23
40% chanceSep 26
50% chanceSep 28
60% chanceSep 30
70% chanceOct 2
80% chanceOct 5
90% chanceOct 9
Probability of moderate freeze (28°F) on or before...
10% chanceSep 24
20% chanceSep 28
30% chanceOct 1
40% chanceOct 4
50% chanceOct 7
60% chanceOct 10
70% chanceOct 13
80% chanceOct 16
90% chanceOct 22
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 3
20% chanceOct 9
30% chanceOct 13
40% chanceOct 16
50% chanceOct 20
60% chanceOct 23
70% chanceOct 26
80% chanceOct 30
90% chanceNov 4
Probability of hard freeze (20°F) on or before...
10% chanceOct 16
20% chanceOct 22
30% chanceOct 26
40% chanceOct 29
50% chanceNov 1
60% chanceNov 3
70% chanceNov 6
80% chanceNov 11
90% chanceNov 16
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 28
20% chanceNov 1
30% chanceNov 4
40% chanceNov 7
50% chanceNov 11
60% chanceNov 14
70% chanceNov 17
80% chanceNov 20
90% chanceNov 24

Agricultural climatic data from weather station: WISCONSIN RAPIDS ALEXANDER FLD (USW00004826)

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