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🍂 First Frost Dates for Willard, Utah 84340

The first 36°F frost date is 30% likely to be on Oct 17. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Oct 29. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Willard, UT 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% chanceOct 8
20% chanceOct 13
30% chanceOct 17
40% chanceOct 20
50% chanceOct 23
60% chanceOct 25
70% chanceOct 29
80% chanceNov 2
90% chanceNov 7
Probability of light freeze (32°F) on or before...
10% chanceOct 21
20% chanceOct 26
30% chanceOct 29
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 10
80% chanceNov 14
90% chanceNov 18
Probability of moderate freeze (28°F) on or before...
10% chanceOct 30
20% chanceNov 4
30% chanceNov 8
40% chanceNov 11
50% chanceNov 15
60% chanceNov 18
70% chanceNov 21
80% chanceNov 25
90% chanceNov 29
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 9
20% chanceNov 14
30% chanceNov 18
40% chanceNov 22
50% chanceNov 25
60% chanceNov 29
70% chanceDec 1
80% chanceDec 5
90% chanceDec 11
Probability of hard freeze (20°F) on or before...
10% chanceNov 18
20% chanceNov 25
30% chanceNov 29
40% chanceDec 1
50% chanceDec 5
60% chanceDec 8
70% chanceDec 12
80% chanceDec 17
90% chanceDec 24
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 29
20% chanceDec 4
30% chanceDec 8
40% chanceDec 12
50% chanceDec 16
60% chanceDec 20
70% chanceDec 25
80% chanceDec 31
90% chanceJan 7

Agricultural climatic data from weather station: BEAR RIVER BAY (USC00420490)

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