🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Prescott Valley, Arizona 86314

The first 36°F frost date is 30% likely to be on Oct 9. (See detailed probabilities below.)

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

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Prescott Valley, AZ 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 4
20% chanceOct 6
30% chanceOct 9
40% chanceOct 12
50% chanceOct 15
60% chanceOct 17
70% chanceOct 20
80% chanceOct 23
90% chanceOct 29
Probability of light freeze (32°F) on or before...
10% chanceOct 10
20% chanceOct 15
30% chanceOct 18
40% chanceOct 21
50% chanceOct 24
60% chanceOct 27
70% chanceOct 31
80% chanceNov 3
90% chanceNov 8
Probability of moderate freeze (28°F) on or before...
10% chanceOct 20
20% chanceOct 24
30% chanceOct 28
40% chanceNov 1
50% chanceNov 5
60% chanceNov 8
70% chanceNov 11
80% chanceNov 15
90% chanceNov 19
Probability of moderate hard freeze (24°F) on or before...
10% chanceOct 31
20% chanceNov 6
30% chanceNov 11
40% chanceNov 14
50% chanceNov 17
60% chanceNov 20
70% chanceNov 22
80% chanceNov 26
90% chanceDec 1
Probability of hard freeze (20°F) on or before...
10% chanceNov 14
20% chanceNov 19
30% chanceNov 23
40% chanceNov 25
50% chanceNov 28
60% chanceDec 1
70% chanceDec 5
80% chanceDec 9
90% chanceDec 16
Probability of severe hard freeze (16°F) on or before...
10% chanceNov 25
20% chanceNov 30
30% chanceDec 4
40% chanceDec 8
50% chanceDec 12
60% chanceDec 17
70% chanceDec 22
80% chanceDec 27
90% chanceJan 6

Agricultural climatic data from weather station: PRESCOTT LOVE FLD (USW00023184)

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