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🍂 First Frost Dates for Manitowish Waters, Wisconsin 54545

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 21. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Manitowish Waters, 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 29
20% chanceSep 4
30% chanceSep 8
40% chanceSep 12
50% chanceSep 15
60% chanceSep 18
70% chanceSep 21
80% chanceSep 23
90% chanceSep 27
Probability of light freeze (32°F) on or before...
10% chanceSep 12
20% chanceSep 18
30% chanceSep 21
40% chanceSep 24
50% chanceSep 26
60% chanceSep 28
70% chanceOct 1
80% chanceOct 3
90% chanceOct 7
Probability of moderate freeze (28°F) on or before...
10% chanceSep 23
20% chanceSep 28
30% chanceOct 1
40% chanceOct 3
50% chanceOct 5
60% chanceOct 7
70% chanceOct 10
80% chanceOct 15
90% chanceOct 23
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 3
20% chanceOct 7
30% chanceOct 10
40% chanceOct 13
50% chanceOct 17
60% chanceOct 21
70% chanceOct 26
80% chanceOct 31
90% chanceNov 4
Probability of hard freeze (20°F) on or before...
10% chanceOct 13
20% chanceOct 19
30% chanceOct 23
40% chanceOct 27
50% chanceOct 31
60% chanceNov 2
70% chanceNov 5
80% chanceNov 9
90% chanceNov 14
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 25
20% chanceOct 31
30% chanceNov 2
40% chanceNov 6
50% chanceNov 9
60% chanceNov 12
70% chanceNov 15
80% chanceNov 18
90% chanceNov 23

Agricultural climatic data from weather station: MINOCQUA (USC00475516)

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